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Hodo
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[1.3.1] Ferram Aerospace Research: v0.15.9.1 "Liepmann" 4/2/18
Hodo replied to ferram4's topic in KSP1 Mod Releases
I found landing speed is around 10m/s less than my take off speed. Which is about what I shoot for. You can lower this further with the use of flaps.- 14,073 replies
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Post your real life or almost real life 'planes here!
Hodo replied to stanonwheels's topic in KSP1 The Spacecraft Exchange
My Cessna knock off.... And my Twin-Otter commuter plane. My first Mach 4+ aircraft in RSS/RO+AJE and an obvious SR-71 rip... -
[1.3.1] Ferram Aerospace Research: v0.15.9.1 "Liepmann" 4/2/18
Hodo replied to ferram4's topic in KSP1 Mod Releases
In simplest terms. The lines are the lift rating, drag rating, and lift vs drag ratio. If I remember them right.- 14,073 replies
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[1.3.1] Ferram Aerospace Research: v0.15.9.1 "Liepmann" 4/2/18
Hodo replied to ferram4's topic in KSP1 Mod Releases
Landing is easy, it is crashing while under control. Landing just make sure your decent rate isn't to high, generally less than 10m/s, and keep your pitch high enough that you can keep that glide slope, but not to steep that your tail strikes the ground on landing.- 14,073 replies
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Your first SSTO space plane should be minimalist. Without going all airhog you can build a nice SSTO space plane using a single fuel tank I think its the LFT-400, with a RAPIER engine and single ram air intake. But it also depends on what mods you are using how simple you can go. But the simplest SSTO space plane I ever built was this.
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[1.3.1] Ferram Aerospace Research: v0.15.9.1 "Liepmann" 4/2/18
Hodo replied to ferram4's topic in KSP1 Mod Releases
Ok the pitching up hard after a while is because your fuel is draining from the front and shifting the CoM behind the CoL. Easy fix for this is to get either TAC Fuel Balancer, or the PWB Fuel Balancer. Another handy tool is RCS Build aid.- 14,073 replies
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[1.3.1] Ferram Aerospace Research: v0.15.9.1 "Liepmann" 4/2/18
Hodo replied to ferram4's topic in KSP1 Mod Releases
Best bit of advice I can give with the control surfaces is to look at actual aircraft and see how they are set. There is a reason why majority of all the aircraft in the air use the same setup.- 14,073 replies
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And you think the one I posted is anything but high-performance? It tops out at Mach 2.15 @ 15km AGL, super cruise at Mach 1.025 @ 7.5km AGL. Can turn on a dime, is stable and easy to recover from spins, has 6 under wing hardpoints and 2 under fuselage, oh and has 2 wing root mounted .50cal MGs. Can use both Lazertek guided weapons and Skillful weapon systems. Yes it is a high performance multi-role fighter. And it only has those 4 intakes.
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[1.3.1] Ferram Aerospace Research: v0.15.9.1 "Liepmann" 4/2/18
Hodo replied to ferram4's topic in KSP1 Mod Releases
Do you have a picture of your craft? My best guess is that your landing gear are out of alignment, to much camber. If that is the case then it is a common problem is KSP not FAR. And 60m/s isn't that fast, depending on the size of your wings and the amount of lift you are generating with those wings will affect your take off speed. The other thing that could be sending your craft out of control is the wing flex, if you are using a lot of wing panels to create your wings they will flex thus creating uneven lift, which will send your craft out of control. Use struts to reinforce your wings to keep them from flexing to much.- 14,073 replies
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You don't need to spam intakes, for the F-119 engine you only need about 7.5 inlet area to cover most of the intake requirements. If not you have something wrong with your install.
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I have not had that issue yet. I think your problem is you don't have enough intake. I see two of the smaller divertless intakes from B9, they are pretty small and you have them feeding two F119s which are pretty air hungry engines. You may want to go to the larger divertless intakes. This should get you over 50% intake air. Look at my fighter with the same engines... Note the intakes are much larger and I have two additional in the wing roots.
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[0.23.5] Realism Overhaul: ROv5.2 + Modlist for RSS 6/30/14
Hodo replied to NathanKell's topic in KSP1 Mod Releases
Was it using AJE cfg for the engines? Because I have yet to see a full RO SSTO space plane like the Skylon even work yet. -
Realistic Solar System Crafts - MEGATHREAD
Hodo replied to Captain_Party's topic in KSP1 The Spacecraft Exchange
It has very poor glide characteristics. But it was able to turn 180deg and glide for about 20km before I had to deploy the chutes. Granted they ejected at Mach 3.7 so even a rock would glide quite well at those speeds. -
[0.23.5] Realism Overhaul: ROv5.2 + Modlist for RSS 6/30/14
Hodo replied to NathanKell's topic in KSP1 Mod Releases
Getting closer to building a SSTO space plane in RO with AJE...... The test started with some reading today about the SR-71 and the Russian Mig-25/31. This lead to this design.... which topped out at Mach 4.12. That lead to reading about the D-21 design.... and lead to this... Which weighs in at 25 tons and achieved an altitude of 116km using jets getting it to mach 2.5 then firing the rocket to boost it past the Karmin line. And hopefully by the end of the month I will have a working SSTO space plane again but this time in RO with AJE! -
Realistic Solar System Crafts - MEGATHREAD
Hodo replied to Captain_Party's topic in KSP1 The Spacecraft Exchange
So I built my first Mach 4+ aircraft.... FR-100 Topped out at Mach 4.225 at an altitude of 24.5km Then there was a minor fueling error, that caused the aircraft to pitch up violently and uncontrollably. Forcing the crew to eject and glide away from the stricken craft safely. Jeb and Bill safely back on the ground somewhere in central Africa. Next step for the Republic of Africa's space program is to do a Linear Aerospike test on the back of the FR-100 and see if it can push it passed the 32km altitude it achieved in its maiden test flight. One step closer to a working SSTO space plane again. -
Ok thats all I needed to know thanks.
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This right here. Thank you Nathan.
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I love seeing these new SSTOs, and new to SSTO creators. After switching to Realism Overhaul I almost miss the the days when I could slap together a SSTO spaceplane in 5 minutes and send it to space. Now I am struggling with supersonic flight, and have yet to design an aircraft that can go farther than a 4hr 45min flight in any direction.
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Isn't that the mod that lets me change the size of things? How does that tell me how to calculate the inlet size of a given intake? Or am I mistaken. I am not looking to make a part bigger or smaller, trying to find out if I have an intake from a mod not supported, and I want to try and figure the inlet aspect ratio so I can add it to the cfg file, how would I do that. Eyeball it?
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Sounds like a memory issue. Check your output log. If not open your windows console and monitor your RAM use for KSP. If it rises above 3.2gb it will crash.
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[0.23.5] Realism Overhaul: ROv5.2 + Modlist for RSS 6/30/14
Hodo replied to NathanKell's topic in KSP1 Mod Releases
You know I don't know, I haven't tried mapping the moon since that update. -
Camlost, Still have a nagging question about intake area calculations. Is there a way to adjust the area or set the area on new intakes? Trying figure out why the larger variable geometry intakes have less area then the supersonic inlets.
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[1.3.1] Ferram Aerospace Research: v0.15.9.1 "Liepmann" 4/2/18
Hodo replied to ferram4's topic in KSP1 Mod Releases
This is what I can guess at. Your CoM and CoL is shifting as you fly. The fuel is draining from the front tanks and causing the CoM to shift towards the rear of the aircraft, moving it behind your CoL. Which is causing your instability problem. Fix for this is simple. You can download TAC Fuel Balancer, and get the RCS build aid which will help with the design of your craft showing the empty and loaded.- 14,073 replies
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Only thing I see that I would adjust is the fuel air ratio. You currently have it set to stoichiometric (14.7:1) which it isn't always the case, some cases you lean out your mixture to increase your power slightly other cases you richin your mix so you can cool the engine or increase high RPM performance, and it also depends on if it is a turbocharged or supercharged setup or water/methonol injected.