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I was experimenting with high altitude propeller assisted launch vehicles for low eve orbit. I can just about reach 20k in height before loosing speed and flipping out. The propellers don’t rotate the craft and are at the com. They are constantly getting fed power so I don’t see what I’m doing wrong. I want to be able to reach 30k or higher to save vessel mass but I was wondering if anyone has help for this issue. Also the launcher can go into orbit. It just needs props that can go that height.

With apologies to the great movies starring Anna Kendricks. Ever get frustrated that your propeller aircraft don't seem to gain speed? Annoyed that mapping blade deploy angle to throttle can result in less thrust with more throttle? Wish you could just use the throttle to control the force of your propeller without finicking around? Well now you can! This mod will handle all of the details while you just fly. How to use: Add blades to any rotor. Make sure that they are aligned in the disc plane in their undeployed state and that increasing the deployment angle makes them take a bigger 'bite' of the air. Set them deployed. On the rotor hub, select which mode you want: Thrust: Keeps the blade at its maximum thrust angle. Throttle the motor's RPM or torque to control your thrust. Throttle: Makes the blade produce thrust proportional to the throttle setting. Set your motor to the desired RPM and a torque setting that will enable that. This is the default and probably easiest to fly with. Efficiency: Keeps the blade at its most efficient (Thrust/Torque) angle. Throttle the motor's torque to control your thrust. This mode is likely the least useful unless you're trying to build a maximum range craft and even then... Fly. For you extra 'Kerbal' types, the math is there to try to optimize weird, non-radial or conic propellers but I don't guarantee it will be able to optimize anything. The steps above are well tested but I can't predict everything you'll try. If something doesn't work, please let me know and send me the craft file. Also, a caveat on my promises of optimization: this optimizes the thrust of the propeller blade, not thrust-drag of the propeller blade. At high forward speeds, it might be a few fractions of a degree away from absolute perfection. I'm working on that. Reverse thrust is also roughly implemented, but isn't perfect yet. I'm still actively developing this but it's good enough to start. Downloads: GitHub: https://github.com/DBooots/Pitch-Perfect/releases SpaceDock: https://spacedock.info/mod/2616/Pitch Perfect License: MIT Dependency: Breaking Ground

This mod enables you to control propellers' pitch in flight to get better performance or switch to autofeather to reduce drag, as well as automatically limit rotor's output to save electric charge. Updated to support KSP1.9.0 Add support to all propeller blades and heli blades Note: The new blade pitch control in KSP1.9.0 won't work well if you enable this plugin in flight. Servo rotors are not supported by the mod. Usage: Press "=" to toggole control in flight. Use throttle to control rotor's rpm, rotor's output limit is controlled by plugin if enabled. You can change target AOA in propellers' PAW(part action window) Dependencies: ModuleManager Breaking Ground DLC Download: Download from spacedock Download on CKAN License: MIT Source code: https://github.com/CarnationRED/FanAOAnRotorTorque Changelog: 0.3 Update to support KSP1.9.0, note that the new blade deflection control featrue in 1.9 won't work well if this plugin enabled Add support to propeller blades and heli blades Bugfixes MOD renamed 0.21 License file added. Readme added. Corrected archive hyhierarchy

as the wiki page states you need to have a understanding of the forces at play to get the most out of your turboprop i want to use the kal-1000 to dynamically change my angle of attack relative to my air speed but cant find a way to do so. alternatives are welcome because i cant find any way to change the attack angle passively that would be effective.

I have found propellers won't work when partially submerged. This put a stop on creating stock boats and aquatic rovers. Here is an experiment to demonstrate: Here, propellers have it going like no one's business But here, same set up, and you're quite literally dead in the water I hope this is an oversight and not intended. Sure, water propellers are slightly different, but it's not like an airplane prop would be useless. It would be great to see this patched, so we can build stock propeller powered watercraft, for Eve, Laythe, and just on Kerbin.

So someone recently challenged me to make a replica of the Quinjet from the Marvel Cinematic Universe. It is a cargo VTOL aircraft with a similar purpose to Boeing's V-22 Osprey. I wanted to make my replica unique, so I decided to make some stock electric/jet powered propellors for the VTOL function. But I've never really delved into the world of stock propellers before. So I was wondering if any of you had any tips on building them, or which design would be most appropriate (are high TWR propellors even possible)? Preferably they need to be relatively low profile, although I acknowledge that I may have to lose some aesthetics for functionality. The design for the aircraft will probably use MK3 parts although I could switch to MK2 for lower mass. Any help/criticism is welcome!

I thought this might interest a few of the propeller veterans Here's a highlight I exported from last nights stream: Craft file: https://www.dropbox.com/s/dun4pe5g1xu632d/! TR6-SemiCyclicGimbal I - LiftTest.craft?dl=0 This started out as a PM with @Azimech and after some interesting ideas from @luizopiloto regarding using klaws and some TWR calculating wizardry by @SumGuy and a few others who popped up in stream, I've come up with that I might call the most ridiculous advanced full stock propeller to date. There's two main factors being used in each engine: (1)The two klaws tucked inside the cargo bays, and (2)the six klaws holding each fan blade. The klaws in the bay are used to add some extra sway to the engine while still being able to hold 250+ tons. They act as a "gimbal" of sorts letting the engine move left/right and up/down but without rotating. The klaws connected to each fan blade let the blade pivot around freely. This lets each blade change it's pitch depending on where it is in the spin cycle, tilting up when it's at the bottom and down when it's at the top like a swash plate. Since klaws don't rotate the angle of each blade is kept the same.

Apparently, use of electric motors allows you to design aircraft with contra-rotating propellers- as is demonstrated in these electric racing aircraft designs: I had no idea this was possible, and this massively changes the game in terms of electric vs. internal combustion aircraft. For one, with contra-rotating electric propellers it's easily possible to pack twice as much Thrust into a given airframe as with an ICE design, allowing for higher speeds (in racing designs) ot larger wings and more space/weight for batteries (in actual utilitarian planes). It's also possible to achieve a much higher ratio of propeller-area to Thrust with the same Thrust- allowing for better performance at higher altitudes (electric engines also operate better than ICE ones at higher altitudes, due to not requiring Oxygen..) I could easily imagine an Electric passenger aircraft being designed someday with 5 sets of contra-rating propellers (1 on the nose and 2 on each wing), each with 3-4 blades rotating in each direction with a rather large propeller diameter, being used to support very high-altitude flight with electric aircraft for the inherent advantages this provides (lower drag for a given speed, less turbulence, more glide time/distance in case of engine-failure). At high altitudes electric propellers eventually reach their maximum torque and rotation-speed, and start to consume less and less electrical power as the Thrust produced and air resistance to rotation starts to fall off with even greater gains in altitude. So, if you climbed high enough you could eventually reach the point where 10 contra-rotating propellers (5 sets of 2) with large diameter blades spans and 3-4 blades on each propeller only draws as much electrical power, and produces as much Thrust, as a single propeller at sea level. However at this altitude, Drag would be greatly reduced- meaning you could (and would need to in order to generate adequate Lift to maintain altitude) fly substantially faster than that amount of Thrust would allow you to fly at sea-level. Even accounting for decreasing Lift/Drag at higher speeds, you could still cover far more miles of distance per kilowatt-hour of electrical power consumed with a design optimized for high-altitude flight and cruising at high altitude... This would lead to substantially extended max range compared to electric planes with lower cruising-altitudes, and might (just barely) allow for practical electric Transatlantic flights on a large plane (larger planes encounter less parasitic drag relative to their volume, and have less mass dedicated to cockpit computers, landing gear, and pilots compared to their payload) with a substantial portion of volume (maybe 50% of the plane's internal space) dedicated to batteries, for instance... Other videos worth watching on the topics of electric aircraft and high-altitude flight: (Above: a general overview of efforts at small electric aircraft...) (Above: a video on the development of "Alice", a proposed 800 km range passenger aircraft by Eviation...) (Above: Airbus and Rolls Royce' efforts at developing Distributed Electric Propulsion for large passenger jetliners- with company estimates putting a rollout date of about 2030-2050, target of 2042)

While using them, my craft started spinning, so naturally, I wondered if I rotated it a bit, I could slow it down with the spinning. I'd also like retractable propellers for drag reasons. So, does it work? I've seen airbrakes used as wings for cruise missiles, which means they are aerodynamic, so why not propellers?

Hello All! I have decided to build a propeller plane. (shamelessly stealing the technology invented by MrNuclearTurkey) (Apparently the tech isn't his either. However, the prop I used was an exact copy from his tutorial) Not just any propeller plane, a stock propeller plane. And not just any stock propeller plane either; it has four propellers, and can drop bombs! The Electrical Ellen Mk VI A My finest creation here, as shown by my video: Anyway, if you want to download this thing, I have a link on dropbox here https://www.dropbox.com/s/7id7gt4kqtlhkun/AC Electrical Ellen VI A.craft?dl=0 Instructions: 1: Decouple all the propellers from the plane 2: Hold down Alt + E on the propellers on the right, make sure they're fully powered (as shown by the roll meter on the bottom left) 3: Repeat on the left side of the plane, but with Q instead of E 4: Decouple the plane from the "Rocket Stability Enhancer" (The Big Red Supports) 5: If done correctly, the plane should lift up on it's own when reaching 50+m/s ----------- Anyway, I'd like to see your propeller planes, big or small! Thanks for reading! Passenger and cargo versions of this planr coming soon! Hopefully, not in Valve Time like how I normally post.

I've been studying up on propellers for personal research and possibly modelling my own for use in KSP mods. So for those that model or have modeled propellers, I'd like to know: How did you model them? Did you use any kind of software to get the blade geometry close to accurate, or did you just make it look close enough? I know Firespitter allows for motion blurring of the blades in rotation, but I've seen it on other props that I'm not sure use Firespitter; so if it's possible to blur the blades in the rotation without Firespitter, how can it be done?