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  1. Gründer Industries ADF-01 FALKEN [Stock] A super-maneuverable, supersonic jet fighter, the ADF-01 (Advanced Dominance Fighter 01) "FALKEN" is a fictional jet from the Ace Combat series of video games- a rare prototype design produced by the fictitious South Belka Munitions Factory Gründer Industries, featuring a distinct forward-swept wing layout and massive twin engine nacelles sunk into the fuselage, as well as an assortment of fins and canards. Additionally, the FALKEN is the first production aircraft in the Ace Combat games to prominently feature the fictional "C.O.F.F.I.N." (Connection For Flight INterface) windowless cockpit technology, and in the games is known for its devastating special munitions it can carry (such as lasers, fuel-air bombs, and multi-target missiles ). For the purposes of KSP, this stock replica of the craft is fairly faithful to the original (fictional) plane- minus a few things impossible to replicate without mods (i.e. lasers or other weapons, and so on). The engines have been setup to have functional 2D thrust vectoring, and just like in the games this FALKEN is super-maneuverable, with a high amount of wing loading allowing you to pull off some impressive post-stall maneuvers, tricks, and sharp turns. The C.O.F.F.I.N. camera/sensor array across the nose of the plane has been replicated as well, and the aircraft is indeed manned. If you choose to do so, mounting mock FAEBs (Fuel-Air Explosive Bombs) to the plane makes for some fun bombing run times attempting to hit space center buildings. Ultimately, this is just meant to be a fun, fast, and agile replica of a video game plane I'm personally a huge fan of. I originally built it for BDArmory combat, but upon seeing how close I was able to get it to the fictional plane and how insanely fun and agile it handled, I had to stockify it so I could share it around. I hope you all enjoy just as much as I have. Download Link [KerbalX] STATS: Parts - 108 Mass - 14.32 tons Crew - 1 Pilot Powerplant - 2x Panther (2D vectored) w/ afterburners
  2. SPC - Spaceplane Corrections Hello everyone! Personally I've been pretty annoyed that a number of stock parts don't have matching colors or shades. There are two generic white coats used for splaceplane or rocket parts, and there are at least five different shades of gray used for trim (Mk1, Mk2, Mk3, Spaceplane, Airliner, etc...). This really bugs me when building intricate craft so I decided to fix this with FireSpitters texture switch plugin (FSTextureSwitch2) to add a widget to swap between textures and trim colors, as well as fix a number couple of misaligned textures and add a few aesthetic changes along the way. I hope they suit your fancy This mod is dependent on the Firespitter plugin maintained by @RoverDude and ModuleManager maintained by @sarbian. Thank you all so much for making this mod work. Make sure to download and install the latest ModuleManager.dll! Firespitter is bundled with the download. Example image: Trim change gif example: https://i.imgur.com/GrJgIwL.gifv Flap retexture gif example: https://i.imgur.com/5ebwtVz.gifv More images: http://imgur.com/a/KjyV5 -Embed links seem to be broken There's a lot more that isn't mentioned or shown in those images (I.E. retextured the blue nosecone and small decoupler, etc). Check the SpaceDock version history for a much more complete list. Download: SPC v0.19 (Spacedock) License: This mod is published under the MIT lisense. View it here. Well, that's all for now folks! Thanks for the read, and I'll see you all later. - Avera9eJoe
  3. Hi all. It has been a while since I posted a craft, but Breaking Ground has brought me back from another hiatus. Today I present the Vertitrace three bladed helicopter. Essentially, I wanted to see if I could implement an R/C three channel helicopter design with the new Breaking Ground parts. As in real life, it was never meant to represent the most efficient or advanced use of helicopter technology. Rather, I was mainly just curious to see how it would work in Kerbal. As such, it is not fast and has a few quirks, but overall the craft can be said to be flyable. If you choose to download and try it out, keep in mind the following: -Rear rotor is bound to pitch axis. -Custom 1 cuts power to and brakes the rear rotor. You must do this if you intend to enter into a hover and/or land the craft. -Custom 2 enables motors with 100% torque. Throttle controls RPM only on main rotors. It is more stable when two small reaction wheels are added to the lower railings (line of fuel tanks that connect to the landing skids), but I wanted to build something that did not need wheels in order to fly. Here is a link to the .craft file for any interested parties: Vertitrace Thanks for reading! Please let me know if you have any questions. *Update: Custom 1 no longer has effect. Rear rotor rpm is tied to pitch. Old version had rpm and torque tied to pitch.
  4. I was watching a new KSP player streaming, and he was trying for a Mun landing early in his career game. Like a lot of new players he was smitten with SRB's... because they are cheap. I told him with the parts he had, he could do it with no SRB's and the rocket would be easier to control. I didn't have an early career Mun lander saved in my own game to show him. So I built a new one and tested it from launch pad to Mun landing, and back to Kerbin landing. So I figured I would post it up in case any new players were stuck and needed ideas. There are many variations of rockets capable of getting you to the Mun & back. For this particular build you'll need to first upgrade your launch pad & VAB (Vehicle Assembly Building) to level 2. Also, it's certainly possible to get there & back WITHOUT upgrading the tracking station... and I encourage you to try. Now granted I'm not a new player, so if you try this rocket you may not make it on your first attempt. Keep trying! I promise it will do the job. A quick tip I like to give new players: It is recommended before executing a maneuver node, or doing a major engine burn, that you press Alt+F5. This allows you to make a game save and give it a unique name. To reload press Alt+F9. By using Alt F5 instead of just F5 alone, you can make incremental saves throughout a mission. This is useful for practicing a particular situation... like the descent from orbit and the actual landing.
  5. This is my stock ksp recreation of SpaceX's starhopper test vehicle, which recently hopped 20 meters untethered on July 25, 2019 and will hopefully hop 200 meters in August. It's still a WIP though, but I'm almost done with it! Here's some images: My Recreation (using Making History for some parts) Real Life Starhopper My Stock Starhopper Recreation "hopping" Real life Starhopper hopping My Starhopper Recreation after hopping, back on the ground One time I tried landing it on the VAB, and this happened (turns out its pretty durable, not the VAB though) Downloads: KerbalX Steam Workshop
  6. MiG-21bis Fishbed Here's my stock Mig-21 replica, pretty fun to fly Download on KerbalX w/Drop tank: 104 parts w/o Drop tank: 92 parts My other Russian aircraft replicas
  7. I have NO MODS installed, I've tried completely reinstalling the game, I've tried restarting my PC, I've tried launching the game from steam and directly from the directory, I've tried restarting steam, And nothing works. I got no error logs and the game worked before. The only thing I know that might have been the cause is that I've tried installing Realism Overhaul via CKAN and ever since it didn't launch. I have no idea what to do anymore.
  8. This craft is a 1:1 scale full stock replica of the H-4 Hercules, more popularly known as the Spruce Goose. This craft, while relatively simple in its design, ended up being one of my more involved replicas, with a large amount of work and experimentation put into replicating the design. The craft is powered entirely by 8 of my R-4360 turboprops, which combined produce 3200 kN of thrust. The wings of this replica represent my first attempt at fully constructing a custom aerofoil. The technique used is effective, but I have since improved upon it,and you can expect more advanced versions of it in my future replicas. One interesting quirk of these wings, is that the enormous amount of drag and lift they produce means that this craft flies very smoothly at its top speed of 26 m/s, yup. Performance wise, this craft did not meet up to my expectations. I had intended for this craft to be capable of water takeoff and landing. With this in mind I kept the craft as light as possible, being about half the weight of my other replicas of similar size and complexity. Unfortunately, this craft was not able to land, nor take off from the water, meaning that this replica is basically completely aesthetic. While I am somewhat disappointed by this craft, I learned a great deal whilst making it, and it was ultimately a valuable experience. Download: https://kerbalx.com/Kronus_Aerospace/Kronus-H-4-Hercules-Spruce-Goose Craft Mass: 310.95 tonnes Part Count: 2141 parts I would love any suggestions about what *big* plane I should build next!
  9. CURRENT PARTICIPANTS: @KerbalKore @ @ @ PROLOGUE: BRIEF: Players must collaborate with one another in order to construct a massive colony ship with enough space and fuel to colonize another world. Each ship may be built solo or with a maximum of 3 people (see rules) The ships must be built by sharing the craft files and sub-assemblies with each other. Ships must be given a name and one of the builders then must head off into the void and get into orbit of their destination in order to complete the challenge. The Ships may be launched from Kerbin and assembled from orbit, or constructed in orbit using Extraplanetary Launchpads. The most ambitious successful mission wins. RULES: SHIP BUILDING CRITERIA: HOW POINTS ARE AWARDED: Recommended mods for the challenge (Stock is fine): This challenge is highly experimental and I would appreciate any feedback given. CURRENT SHIPS: NAME: CCS "Noah" PHOTO: TYPE: Cryo ship DEVELOPERS: @KerbalKore CREW CAPACITY: N/a DESTINATION: Nara (planet 9 of JNSQ system overhaul) MODS: restock, restock+, EPL, KSPIE, BDB, Tantares, and all Nertea's stuff. PROGRESS: Planning stage
  10. I, HolidayTheLeek had a dream... ...and that dream was to build the largest weeb thing I could think of. With the help of @Xen0m3 and his brother, Mika (who doesn't have a forums account). After two months of concentrated hamon weeb energy, we managed to complete all four of the Kongou Class Battleships. Each of them being in 1:1 scale, having fully rotating turrets, and working catapults and floatplanes each. As of the 18th of June, Kongou is the largest craft on KerbalX (From right-to-left, Kongou, Hiei, Kirishima and Haruna) ----- IJN Kongou Made by Me Kongou is the lead ship of the class, and appropriately the largest one in terms of part count too. I gave her stock decals as well. ----- IJN Hiei Made by Xenome ----- IJN Kirishima Made by Me ----- IJN Haruna Made by Mika ---
  11. Hullo boys! Since i'm new to the forum i might be incorrect with some things but that's why we we improve as humans. This topic is for showing all (modded or stock) rockets that i make in the game and i like to share using screenshots. Hope you like them! Let's start with the Space Shuttle! https://imgur.com/a/izpIoE4 The Space Shuttle program is one of my favourites NASA programs ever, it combines rocketry and crew transport up to another level, also allowing cargo to the ISS or docking to the de-orbited Mir station made by the Soviet Union/Russia.
  12. Stock U.S.S.ENTERPRISE replica. 7794 parts in total. download link: https://steamcommunity.com/sharedfiles/filedetails/?id=1737212789
  13. This craft is a full stock 1:1 replica of the F-104C Starfighter. Intended to be simple replica to serve as my introduction into the world of fighter craft replica's. Instead it became one of my highest part count fighter craft and by far my most accurate replica in general. With 660 parts it's a hefty 40 tonnes, however due to how it was designed it still has decent enough aerodynamics that a bit of engine clipping has allowed it to achieve the required performance. It is able to reach mach 2.6, which is much faster than the F-104 actually ever flew at, although the F-104 possessed the power and aerodynamics to achieve such speeds, however parts like the cockpit limited its speed as it was never designed to take such strain. It has a rotation speed of 60 m/s A stall speed of 40 m/s Its maneuverability...Well, it won't exactly be flying under any bridges All pretty much what you would expect from an F-104, so not a big loss. On the development side, this craft came to together slowly but smoothly. I spent just as much time in the blueprints as did actually building it, the result was that I really had to redo or adjust many sections. This style of building is one I have been employing for a while, but this craft shows the fruits of that labor more than any other. BIG THANKS TO PHANTOM AEROSPACE! Fellow builders have been suggesting that I build a fighter replica for quite some time now, although I always refused. That is until @Phantomic suggested that I start off simple to ease my way into it, specifically the F-104. I just want to give him a huge thanks for encouraging me to build this, as it was one of the most fun replicas I have done in a long time. Please check out his craft, he makes a variety of craft from really detailed trucks and other vehicle replicas, to really sexy and practical stockprop fighter craft. https://kerbalx.com/PhantomAerospace Also you should download his own F-104C replica, it's excellently done and quite practical, plus all of that for exactly 1/10 the part count of mine, you can't beat it! https://kerbalx.com/PhantomAerospace/F-104C Download Link: https://kerbalx.com/Kronus_Aerospace/Kronus-F-104C-Starfighter
  14. 个人第123号原版组件飞船 Stock starship No.123 of mine 带有一个舰载机(不实用/模型/装饰)、4个通讯卫星(不实用/模型/装饰) 车间内: KVV生成: 在轨: Steam创意工坊链接:https://steamcommunity.com/sharedfiles/filedetails/?id=1753135191
  15. I've been paying much closer attention to delta V, engine weight, and twr as of a late, and I've noticed some interesting things. To start, I've just recently noticed that the overall delta V of a craft is heavily affected by engine weight, sometimes even to the point of affecting which engines I'd prefer to use. Previously, I'd picked engines solely based on their ISP, size relative to the craft/stage, and the overall twr of the final craft/stage. However, since 1.6 added the delta V display to the stock game, I've been gradually prioritizing it over those other things. Nowadays, I'm often shocked to find that the Delta V shoots up when I use an engine with noticeably lower thrust and ISP, seemingly just because of how light the engine is comparatively. I've started using the Spark engine over the terrier in all my deep space 1.25m craft in my early science games, despite the size the difference being quite noticeable; the delta V will tend jump up by shocking amounts just by swapping into the lower efficiency engine! I've even run into some scenarios that make seemingly worthless engines worthwhile; despite the poodle appearing to be inferior to the wolfhound in a variety of ways, it actually gives the craft more delta V in many cases! I'm sure this is an obvious thing that rocket science has to take into account, and I probably look quite dumb to a lot of people right now, but I just find it fascinating how a difference in mass of 1.55 tons can make 113m/s of delta V come from a noticeably less efficient engine! I was just wondering if there was a good way to quickly quantify this at a glance looking at the engine stats. As it stands, I'm only really able to find the best engine for a craft through trial and error, since I'm not really sure how the engines weight plays into things. I've gained a general intuition for how thrust and ISP factor into a crafts design, and this new variable is getting me all confused And now for the "Kerbal" aspect of things; I've recently been infatuated with the idea of making a rocket with the highest possible twr that can reasonably be achieved. I personally find it hilarious when I make rockets that are so powerful, that they are immediately burned up before they could ever hope to hit space Does anyone have any tips for getting the most twr per part, while keeping burn time high enough to use that twr? I'd love that
  16. Pretty self explanatory. Here you can share some of your own custom mission flags if you want to. Here are mine: Feel free to use them if you feel so.
  17. PREFACE BY THE AUTHOR CONTENTS i. Preface by the Author ii. Contents 1. In which the endeavor is begun, and several missions are launched. 2. In which the Mun is flown by. 3. In which the greatest achievement ever accomplished by Kerbalkind... is. 4. In which a slightly greater achievement is accomplished, but with none of the fanfare. 5. In which Ike is landed upon. PART THE FIRST In which the endeavor is begun, and several missions are launched The first mission of this space program was an uninteresting one, a mission that you have doubtless seen many times before, so not much time will be spent describing it. For the few who at all care, a picture has been provided below. Fig. 1: The Kerbin 1 on its immensely dull flight It went up, and it came down. Construction was immediately begun on a new, more interesting mission. Fig. 2: The Kerbin 2 The Kerbin 2 pushed the boundaries of rocketry with its revolutionary new design, which still managed to look quite like many other craft. While it had a more interesting mission than the 1, consisting of not one but two science opportunities, it still suffered from the same fundamental dullness. Fig. 3: The Kerbin 2 in flight With the development of the Kerbin 3, the engineers at Science, Incorporated started to close in on the cause of this dullness, and equipped the Kerbin 3 with new features to fight it, such as more parts, a multi-stage design and a number even larger than its predecessor’s. Fig. 4: The Kerbin 3 The Kerbin 3 followed the ‘orbiter’ mission format, with a launch phase, a ‘circularization’ phase, a science phase, and a return phase. Some difficulty was presented in piloting the mission, its having no method of control for the first stage, but this was easily overcome. Fig. 5: The launch Fig. 6: The circularization Fig. 7: The return The efforts of these engineers were not entirely in vain, however, as the insights gained from this mission enabled them to take a step forwards that was almost visionary: eschewing the Kerbin naming scheme to call their next rocket the Mun 1.
  18. Hello, I'm Noah the Smol and this is my system rearrangement I have begun development on. These are bound to change! This is literally my '0.2' of the mod. Edit Log
  19. Republic P-47D Thunderbolt Powerful, Rugged, and Reliable The P-47 was an iconic workhouse fighter aircraft created by Republic Aviation, and first flew in mid 1941. It was first delivered in late 1942, to units serving with the Eighth Air Force in England. It was initially conceived as a high-altitude escort fighter (a role which it excelled at), but thanks to its powerful Pratt & Whitney R-2800 Double Wasp engine it also excelled in the fighter-bomber role, as well as the ground-attack roles. It could carry larger loads than contemporary fighters, and faster than contemporary bombers. The reason for the P-47's success lies with the combination of the powerful engine with an exhaust-driven turbo supercharger, allowing it to keep pace with supercharged bombers for escort duties and outpace much smaller fighters at high altitudes. All of this contributed to a high performance, but the Jug's selling point was its high survivability. The P-47 was built to keep its pilot safe and get home safely. It featured armor plating (in addition to the supercharger itself) to protect the pilot from rearward shots, and the engine was highly robust and absorbed fire from the front. Additionally, the wings and control surfaces were reinforced against damage, the fuel tanks were self-sealing, and the razorback P-47s (A and B models) featured roll cages, and later-model P-47s had a skid underneath for belly landings. All this is to say that the P-47 could get you to the fight in time, and get you back home safe. If you want to fly the P-47 for yourself, enjoy this 2:1 scale replica of Republic's Jug. The video above goes over launch procedures and flight techniques, which are repeated below for thoroughness. Takeoff Procedures Lower flaps with 0. Action group 9 toggles the outer flaps separately. Stage the engine, trim it up using alt+q keep the fuselage level, with the tail wheel just off the ground to take off, use 0 to retract the flaps gain about 10m altitude, then tab back to the engine. Use action groups 1 and 2 to put the propellor in cruise trim accelerate up, and start flying for real. To land, do the same in reverse, with the additional step of using alt+x to cancel the propellor thrust and wheelbrakes to stop. The guns are operated using the staging sequence About the Replica I was initially inspired by my first replica the P-47, which left me a bit disappointed in the small amount of detail I could pack in a normally-sized craft, so I wanted to go big. Additionally, this craft was inspired by @kapteenipirk's UCS style planes, built at a large scale, but highly detailed and functional. Additionally, I will credit @Kronus_Aerospace for building the engine used in the first iteration of the craft (it was later rebuilt with my own design, however I would have never taken on this challenge without it). This was a fun build to make, and it put me outside my comfort zone a couple times. In my usual style, it is highly detailed, but this P-47 also features many of the mechanisms that the real P-47 had (to toggle the cowl flaps, use action group 3). I also am pushing my boundaries a bit with the video, so I'd like feedback on it as well. Download Link: https://kerbalx.com/servo/P-47-Thunderbolt_2 Enjoy, and happy flying!
  20. I've been lurking silently around this forum for years, but I'm finally feeling bold enough to share some of my creations. It took a long time for my design skills to catch up to my ambitions, but I'm finally getting there. For the past year or so, I've been re-creating pure stock Star Wars Starfighters in as much painstaking working detail as I can, with emphasis on high visual accuracy and realistic(-ish) flight performance. I'll admit that sometimes I had to make use of egregious part clipping, sorta-sneaky wing panels, and shameless engine stacking... but I'm pretty sure people were allowed to do that a long long time ago in a galaxy far far away. I'm on the run from The Empire (read: my responsibilities), so I'll be posting my Star Wars crafts in this thread just a couple at a time over the next week or two. Building them was a colossal time sink, but uploading and annotating them has proven to be another wormhole entirely. In the meantime, feel free to chime in with your own reproductions, tweaks, comments, and suggestions. Follow links within posts to KerbalX for craft downloads and details. *********************************************************************** EDIT: LIST OF SKUNKTWERKS CRAFT APPEARING IN THIS THREAD T-65 X-Wing (ATMO, SSTO) A/SF-01 B-Wing (Folded, Unfolded) TIE/LN Fighter (Solar, Simple) TIE/IN Interceptor (Solar, Simple, Royal Guard Solar, Royal Guard Simple) Podracers (Sebulba's, Teemto's, Anakin's) BTL Y-Wing ATMO Naboo N-1 RZ-1 A-Wing (ATMO, SSTO) Eta-2 Actis-class Interceptor Delta 7 Aethersprite-class Light Interceptor (ATMO, SSTO) Delta 7 Aethersprite SSTO+RCS with Syliure-31 Long-Range Hyperdrive Module Naboo Cruiser, aka J-type Diplomatic Barge (ATMO, SSTO) BTL Y-Wing SSTO Anakin's Podracer SSTO Alpha-3 Nimbus-class V-wing (ATMO+VTOL, SSTO) Nantex-class Defense Fighter (ATMO+VTOL, SSTO) Defender-class Light Corvette VTOL T-65 X-Wing ATMO+VTOL Aurek-class Tactical Strikefighter (ATMO+VTOL, SSTO) GoatTwerks Variable-Geometry Alpha-3 Nimbus-class V-wing Kylo Kerm-Ren's Upsilon-Class Command Shuttle (ATMO+VTOL) ... and more to come! *********************************************************************** Now let's get this nerd party started: SkunkTwerks proudly presents the classic T-65 X-Wing in two specialized versions! The T-65 X-Wing ATMO for atmospheric flight: I stacked Panthers on top of RAPIERS for these sci-fi engines, so if MORE POWER is what you crave, you can always hit the afterburners. Just remember, velocity can lead to Rapid Unscheduled Disassembly, which leads to anger, which leads to hate, which leads to shooting force lightning from your fingertips. In other words, it's totally worth it. Yes, those KX9 laser cannons work! They're about as accurate as Storm Troopers, but they do fire. You get four shots, so make 'em count. . The T-65 X-Wing SSTO for space and atmospheric flight. The SSTO stacks Whiplashes on top of RAPIERS, and the result is easily capable of LKO with several hundred dV's to spare. Hidden docking ports in the nose and the droid's head make orbital refueling possible, if you want to land it on the Death Star Mun. RCS not included, but feel free to add your own. More high-fidelity Star Wars Starfighters coming soon. Until then, may the forces of physics be with you. -SkunkTwerks
  21. Before Reading I'd recommend that you'd watch Bradley Whistance's video on his stock prop speed test. The method he outlines is not relevant to the actual math work, and simply affects the values I will be plugging in. https://www.youtube.com/watch?v=J7oc1FLnWlY&t=438s I will only discuss the resulting data in this thread to keep things simple, if you have specific questions about the math, let me know. With that out of the way, let me preface this discussion. The dominant method of powering stock props is by using RTGs, which makes sense. They continuously generate power, allowing stock props to run forever, this is great for Duna, Eve, and Laythe exploration. However, I commonly see this used on props built for fighter craft, transport aircraft, and others. While there are some cases where endless flight is desirable on Kerbin, such applications certainly do not qualify. Most people don't fly a single stock prop fighter for hours on end (without crashing). This leads to the question, are RTGs the most efficient way of powering these props? Short answer, no, but I'll explain in more detail. I am taking efficiency to mean weight in this conversation, although other uses of the term, such as part count, may also be referenced. First we must establish all of the possible methods of powering a stock prop: RTGs (duh), batteries, and fuel cells. RTGs we already discussed. Batteries would simply run the engine using their stored electric charge, and the flight would end once they run out. Fuel cells would burn LFO (Liquid Fuel + Oxidizer), continuously generating the engines power needs whilst draining LFO from on board tanks. Of course, I wouldn't even consider the fuel cells to be an option unless I had a good reason. Doing some simple math, we can find that all batteries hold 20,000 units of electric charge per tonne. How much electric charge, then, is LFO equivalent to per tonne? It depends on which of the fuel cells you are using, but for the small fuel cells this comes out to 79,934 units of electric charge per tonne of LFO, and for the large fuel cells it is 81000 units per tonne. Looking at the raw data, fuel cells are the obvious winner. However, the additional weight associated with fuel cells throws a wrench into the works, and in either case this tells us nothing about how RTGs stack up. So I will analyze these three choices in an applied setting, where I will test their mettle in a hypothetical prop that utilizes 10 of the 1.25 meter reaction wheels with 2 dumpling fuel tanks used as bearings. I did these calculations presuming that this engine would also utilize the trick described and demonstrated by Bradley Whistance's video. Using this method the reaction wheels consume roughly 2.73 times their normal power (according to my own testing), I'm using ball park numbers so any small discrepancy is irrelevant. RTGS: The 10 reaction wheels consume 13.65 units of electric charge per second, as such the engine would normally require 19 RTGs to run continuously, which themselves would weigh 1.52 tonnes. BATTERIES: To run this engine for 1 hour you would need 49,140 units of electric charge. This would require 2.457 tonnes of batteries, so those certainly aren't the best solution, although using the largest battery bank available, this would only require 13 batteries. Since the weight of the batteries required scales directly with time of flight, they are likely the most efficient in very short flights. FUEL CELLS: The smaller fuel cells generate 79,934 units of electric charge per tonne of LFO, meaning only .615 tonnes of LFO is required to run the engine for 1 hour. This amount of LFO is almost perfectly held by the 2 dumplings in the bearing, plus two oscar tanks which altogether hold .62 tonnes of LFO. In total the tanks would weigh .698 tonnes (including dead weight), and this engine would require 10 of the small fuel cells to run continuously. This adds another .5 tonnes to the total weight, bringing it up to 1.198 tonnes. As well as 14 parts, but really that's 12 since the dumplings have to be there regardless. In every possible way, the fuel cells are more efficient, while the use of dumpling bearings may seem to bias the fuel cells, in reality this does not affect the weight, and only affects part count. Using a different bearing type would only add 1 additional part, making it on par with batteries and superior to RTGs. None the less, it is far superior to both in terms of weight. This leads me to conclude that Fuel cells are the superior method for powering stockprops intended for short to medium flight times. It should also be added that it is of course possible to mix these methods together. In this one instance, it is actually beneficial. While 10 fuel cells are required to meet the continuous power generation needs, this is only by a small amount, the raw value is 9.1 fuel cells. This adds the equivalent of 540 additional electric charge generation required over the hour of flight. Since fuel cells come with 50 units of electric charge storage each, this means that 9 of them would have 450 units total, leaving us 90 units short. These 90 units can be accounted for with a single of the smallest battery pack (which has 100 units). Weighing in at a mere .005 tonnes, this change leaves us with the original part count of 12 and a reduced mass of 1.153 tonnes. So yes, it is possible that adding batteries will lead to a net increase in efficiency, however, the instance described above is the only type of scenario where this is actually the case. So limited is this possibility that even if the real value turned out to be just 9.3 instead of 9.1, then using batteries would result in a net increase in weight. Again, these results may be different for engines of differing sizes. however I can only see fuel cells being knocked from their throne with very different total flight times. For instance, short flight times where batteries' ability to instantly deliver power gives them a major advantage, and long flight times where RTGs' endless power generation eventually overcomes their initial mass costs. This may be obvious already, but just to clarify, the fact that the math above uses reaction wheels affected by Bradley Whistance's technique IN NO WAY affects the actual math or conclusions. The math above is roughly equivalent to if you had simply used 27 reaction wheels functioning under normal conditions. The objective of this thread was to demonstrate that fuel cell powered props are a lighter and more part efficient approach to powering certain stockprops. While it took a decent amount of complex work to arrive at this conclusion, in actual application fuel cell powered props are no more difficult to build or use then RTG props. There's also the small fact that a fuel cell powered prop will not only start out lighter than a RTG powered prop, but it will also get even lighter as LFO is drained throughout the flight, further increasing performance. I appreciate any questions or feedback you may have. If I made any mistakes, please let me know, and I would love to hear your thoughts on the topic. @klond I think this may interest you.
  22. Welcome, ladies, gentlemen, and anyone else who happened to stumble upon this forum topic, to... Here, you will find a blooming aerospace program, just starting to get a foothold in the market that consists of vehicles able to transport you to space! Shop now, and a round-trip ticket to Kerbin Orbit and beyond is just around the corner! Come take a look at our inventory... NOTE: Some craft flags and names might be inaccurate if the screenshots were taken before the mass class reorganization. SEE THE GALLERY HERE SPACEPLANES Note: Only spaceplane classes Angel through Power are available at this time. Higher-class spaceplanes will be added as they're created.) DOWNLOADS AND ACTION GROUPS Third Triad (Eleven spaceplanes) (Class 9: Angel) FS-A Gardia The result of when an team of engineers decided to strap RAPIERs onto a fighter jet and partially fill it with rocket fuel. Gardia is surprisingly orbit-capable, fit to be a trainer vehicle for young spaceplane pilots. Note: Ejector seats were swapped out for normal seats in the name of weight savings; pilots have to bail out manually in case of an spin-out they can't recover from. FS-A Angel The next step up from Gardia, Angel is a Mk2 spaceplane that has roughly the same range as her elder, smaller sister. Additionally, she has a cargo bay with space for a small space probe, so possibilities are prone to increasing exponentially. FS-A Tyrfing When plans to make a sword-shaped SSTO were first revealed, people thought AAAE's engineers were crazy. "Are you nuts? A giant sword could never make it into orbit, let alone in a single stage!" they said. Oh, they were so wrong. Not only that, FS-A Tyrfing, with its aggressive ascent profile and docking capability, quickly became the go to luxury SSTO for most daring of pilots in transit to kerbin space stations. NOTE: Like with Apollo, take special care when reentering Kerbin's atmosphere. (Class 8: Archangel) FS-A Mystletainn An SSTO spaceplane capable of carrying an orbital missile to low orbit and then deorbiting once the missile has hit its target. She has attained her rank due to her stylish looks and rapid response time. FS-AA Archangel The first Mk3 spaceplane, designed straight after FS-A Angel, and later on redesigned following numerous failures with returning subsequent prototype MK3 SSTOs from orbit. Like with all MK3 SSTOs listed after her, land with care. FS-AA Ferrybot Jr The younger sister of Archangel-Class Spaceplane FS-AA Ferrybot. Ferrybot Jr comes equipped with a docking port, RCS, twin nuclear engines, and capacity for 8 kerbals. She requires speeding up to 440+m/s at sea level due to heavy weight at takeoff, but is incredibly maneuverable, capable of even recovering from a spinout when almost dry. FS-AA Ferrybot Ferrybot Jr's aforementioned elder sister. She is capable of sending 32 kerbals to space stations in Low Kerbin Orbit. Check regularly for signs of sentience. (Class 7: Principality) The first class of spaceplanes to presently lack a spaceplane named after the class itself, instead having a reusable rocket having the class and name. (listed after spaceplanes). FS-PR Spectre When Spectre was first built, she was not granted a classification or a name because the head engineer thought he was building a Minmus Trainer. Luckily, this error was corrected when a plucky intern informed him of its landing legs, rover cargo bay, and "twin tail fins". The intern would later correct a head scientist when he first discovered Laythe, but mistook it for Kerbin. FS-PR Journeystar An ambitious SSTO built with a mining and ISRU rig pre-installed. She is capable of munar landings, but consumers may want to have engineers install extra batteries depending on their electricity needs. After first successful test runs, she received additional tuning from an SSTO manufacturer called Arctic Aerospace (headed by Arctica Frostbite, forum account link unknown.) FS-PR Wyvern A magnificent beast with an interesting wing design, Wyvern is tested and confirmed for the ability to send a small rover to the Mun and return safely to Kerbin. Wyvern might also potentially be capable of Minmus returns, though she wasn't designed and built with Minmus in mind. FS-PR Apollo Returning to the MK1 cross-section, Apollo is the first of AAAE's spaceplanes able to take a round trip to the mun. Dissatisfied consumers suggested renaming her "Icarus", but our engineers insist on not being afraid to use Apollo's on-board RCS and/or focus intensely on not letting her blow up on final reentry. Second Triad (Seven Spaceplanes) (Class 6: Power) FS-PO Ancile Vaguely shield-shaped (but not really), Ancile has sufficient delta-v for Minmus landings and interplanetary flybys and returns. With an additional front docking port, she also is capable of docking to Tyrfing, the sword-shaped SSTO, because why not? FS-PO Phoenix Following the revamp of a previous iteration of this craft by AA, AAAE was still determined to make a version not heavily modified by AA. And thus a couple iterations later, under the codename of Mystletainn, Phoenix finally rose from the ashes of AAAE's failed attempts. Their engineers insist it should be able to get to Duna and back if flown correctly. PS-PO Perseus A cargo SSTO designed to carry ten tons of cargo to either the Mun or Minmus, drop the off, and return safely to Kerbin. With her surplus fuel, her range can potentially extend to other bodies, given that she's refueled somewhere along the way. FS-PO Heracles The prototypes of Heracles, first of the three successful Power-Class SSTOs, were met with crash after crash when test pilots found themselves unable to regain flight control. With contractors and investors furious, AAAE turned to Arctic Aerospace - who would later offer slight tweaks to the Journeystar - for help, and so with major redesigning and tuning, the first successful version of Heracles was engineered, tested, and ultimately landed successfully by even AAAE's remaining pilots following the previous disasters. Heracles is capable of sending a full orange tank to Low Kerbin Orbit, and comes equipped with a single NERV for extended range. FS-PO Aegis Weeks after the failed landing of the yet-unreleased FS-PO Phoenix's first prototype, and during extensive testing and reiterating of further prototypes thereof, AAAE's backup engineers thought it would be a good idea to create a heavier cargo SSTO so FS-PO Heracles wouldn't be so alone in the Power SSTO class. After one prototype failed to get off the ground and another's wings fell off on the runway, the Aegis was born. Currently the heaviest cargo SSTO, and bearing a similar nose design to her little sister, Aegis is able to carry 78.8 tons' worth of payload into LKO and return to Kerbin safely following the release of said payload into space. She even has a built-in docking port in her cargo bay so she can rendezvous and dock with space stations. You know, so she doesn't drift off while her cargo is being re-positioned and docked. (Class 7: Virtue) FS-V Phoenix Anger The Phoenix Anger is the superior successor craft to Phoenix. With over 5,200 m/s of Delta V in Low Kerbin Orbit, our engineers have projected round trips to Laythe to easily be within reach of skilled pilots! Comes complete with capacity for 6 kerbals and the .95 ton "Virtue" rover. FS-V Iris After the success of Ferrybots Sr. and Jr. and the failures of various Duna SSTOs, AAAE felt like they needed more practice, and, furthermore, an additional means of staying afloat. And so Iris, codename Minmus Rex, was built with one mission in mind: Ferry a substantial amount of kerbals to Minmus and back. Luckily, she can easily do just that, though a round trip to the Mun might require slight refueling, if not only excessive aerobraking on the trip home. REUSABLE ROCKET "Rocket" instead of "rockets" because we only have one vehicle at the moment. DOWNLOADS FSR-PR Principality Principality is the sole reusable rocket sold by AAAE. Capable of reaching and returning from LKO like all of AAAE's current spaceplanes, she has been projected to be able to lift up to 30 tons worth of payload to low orbit, and potentially serve as an ascent stage for heavier payloads with their own propulsion. Note: Factor the payload's fairing into the payload's total weight. FLAGS: The classification flags currently in use, along with two versions of AAAE's company flag, can be found HERE. UPCOMING SPACECRAFT: Short-Range VTOL SSTO (LKO) Long-Range VTOL SSTO (Mun/Gilly(?)) ...Duna Cargo SSTO? REQUESTS: CLOSED, BUT SUGGESTIONS ARE OPEN  Mystic Labs A new subdivision of AAAE that focuses on less conventional forms of transport in general, from Jet Rovers to Weird Shuttles, and to more conventional forms of space transport such as tried and true rockets! While SSTO Spaceplanes are still mostly found in AAAE, Mystic Labs will cover anything else... just as long as you don't mind the inherent flaws in wackier craft. GALLERY CRAFT FOLDER Ursa Major - An SSTO spaceplane with an experimental two-stage design - the first stage is designed to carry you into orbit, while the second stage undocks from the main ship and is able to go anywhere in Kerbin's satellite system and return to the main ship afterwards. It tends to torque upwards in RAPIER mode in a vacuum, and in both modes in high time warp, so, watch for that. Be sure to shift all remaining fuel to the front of the spaceplane when returning to Kerbin! SSTO-11 Twintails - A private SSTO with capacity for 3 crew, but with two rather pointless plane tails in the back, hence the name. She was designed when two drunken engineers moved to Mystic Labs decided to poke fun at Fox Kerman's seeming obsession with vulpines. Launch Vehicles Colt and Pony - An super-ultralight reusable and a light semi-reusable launch vehicle, respectively. While Colt is only really useful for sending small probes into orbit, Pony can send payloads of up to around four-and-a-half to eight tons to low orbit and still be able to land its center stage. Mustang - A medium reusable launch vehicle that was built with sending orange tanks to orbit in mind. SSTO and landing capable like the Colt! Note: Fire up the engines to point retrograde during late re-descent due to on-board vernors and airbrakes giving insufficient control. Integrity - A Minmus rover previously only available by purchasing/downloading FS-PR Spectre. Virtue - A prototype Laythe rover previously only available by purchasing/downloading FS-V Phoenix Anger. Expeditioner Duna - Not just a titan of a rover, but a fully-functional base on wheels at 98 parts. Launch and transfer vehicles sold separately. As always, thank you for browsing through and potentially even ordering some of our craft for replication and delivery. We hope to see you again soon, as the number of available craft is bound to increase further overtime.
  23. The Mindri is a cute little SSTO I made a few months ago that can haul 30t to LKO in a Mk 3 form factor. Due to an optimized design, it uses only four Rapier engines, which helps keep the cost down. The Mindri had no crew accommodations, relying instead on a probe core for control. It handles well in flight and is quite controllable during reentry and landing. Attitude control on orbit requires planning, since the onboard reaction wheel is quite small and the RCS system is intentionally under-powered in order to keep propellant requirements down. The Mindri has no provisions for docking to a space station or fuel depot, but it can be used to recover hardware with either a Clamp-o-tron or Clamp-o-tron Sr., as long as it fits in the cargo bay and isn't too heavy. The max downmass for this design has not been tested, although it should do fine with anything less than 15t. KerbalX link
  24. I've designed this base for fun a few days ago and I was surprised to see it could compete on InSight challenge (rank 4 - unlimited !). As usual I've tried to come up with creative ideas and various modules to assemble a good-looking outpost, hope you'll enjoy it, too ! This outpost is made of 3 large habitations modules, one extended lab with full science experiments, a workshop with a drill and electricity storage, and a "power tube" with 8 large solar arrays. It also comes with a heavy rover to make some science on the field ! Overall this base is packed with 55 Kerbals and is designed for long-term stay. Here's how I deployed it : Chapter 1 : Launch The outpost is contained inside multiple fairings, above a descent stage, which itself sits above a Rhino transfer stage. There are 6 heavy lifters around this central core providing a high thrust (1.5G) and more than 3k dV so it's also a SSTO of some sort. Chapter 2 : On way to Duna ! Chapter 3 : Deploying stuff around, preparing to land Heres RoundSat 1 which is released just after capture. SurveyScan and main Relay is also detached. Chapter 4 : Ready to land ! Not seen on those pictures : RoundSat2 was detached just before retroburning the mothership to allow a sufficient communication along the descent. Chapter 5 : Undocking all the goodies Because Scarab would have lots of troubles to assemble the base on a slope, I had to persuade the whole craft to get low enough to reach a plane surface. Good thing I put a massive tank for those Thuds ! Scarab is set up under a module before it detach. Central core is installed a little away from the craft to allow easy modules installation. Now for the most fragile modules of all, not sure if the airbrakes helped but they sure looks professionnal. Final module is the workshop. Chapter 6 : Base is online and ready to partyyyyyyyy--- make science ! Someone said champagne ?!
  25. In agreement with FJS, my friend and I are hosting the first Stock Fighter Jet Showdown! We’ll be uploading the competition to YouTube later this year. On behalf of stock builders, we wanted to give you guys a chance to put your hard work on display. Rules: 1. Aircraft must be fully stock, no DLC, and no mods (except armed with BDA: see rule #8) 2a. Your weapons may consist of up to 6 guns, and 12 missiles from the base BDA, this is not per craft, this is per team of up to 3 aircraft, you may not have more than 3 aircraft in a team. 2b. Guns may be either 20mm hidden Vulcans, individual 50cals, or 30mm GAU-8s. 2c. You may have up to three crafts but you must distribute the weapons across them. 3. You may not clip engines, and there is to be NO craft file editing; the exception to engine clipping is if your fighter is heavily detailed. In that case, you will be allowed to clip engines in, but the craft may not go over 800m/s as a result of the extra engines 4. Craft are to be loaded out before submission. 5. For our sake please keep the part count per craft below 200, we’re trying to avoid having crappy frame rates for the sake of recording. 6. Craft will be inspected for compliance. 7a. Please submit craft by emailing [email protected] 7b. Submit your craft in the following format: Craft Name: [Insert Name] Amount: [Up to three] Armament per craft: Your Name: [The name you want to be listed as the builder] Attach head-on, top-down, and side images of your craft Attach the craft file. (Keep in mind how many aircraft and weapons you can have: 3 Aircraft- max of 4 missiles & two guns each 2 Aircraft: max of 6 missiles & three guns each 1 Aircraft: max of 12 missiles & six guns) 8. You may not use BDA’s armor feature, and you can only use BDA for the weapons, radars, Radar Warning Receivers, countermeasures and AIPilot/Weapons Manager, and the Saturn engines. 9. Aircraft must have a cockpit of some kind, and must take off, land, and fly like conventional aircraft. 10. These should actually be fighter aircraft, whether they're a replica, concept aircraft, or original design. Aircraft which do not look like they could be a proper fighter will be ruled out. This is solely because it's unfair if a low-quality aesthetics aircraft that is absurdly performance based goes against a high-quality aesthetics one. Only the highest quality designs with a lot of effort put into the aesthetics of it will be accepted, nothing more, no less. After all, this competition is to showcase the hard work and talent that stock builders put into their craft to make them as beautiful and as high-performing as possible.
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