@zwen thanks! Also, for some reason the freespin rotator does increase a lot the RPM

@Dragorans it works and works surprisingly well! I honestly never thought about this configuration, but I also made two modifications here. Basically I changed the rotator to 180degrees and change the blade angles to 30deg. Now you can take off from the runway. Advance to 20% throttle until 50knots and then use full throttle. It can reach 550kts.

@zwen updated funky tree to one that works

https://www.simpleplanes.com/a/H4X21K/Eletric-plane

@zwen

@zwen i will post my testbed

@zwen no :(

Does this one work for you?

@zwen i will try to increase the drag

@zwen the liftScale do not work
I tried 248383474775585874733484475 times to put liftScale and still the same

@zwen im at the last 1.10, so i think it works

This is the XML code. If it's an older version of SP, I do not know if it works

@zwen q and the engine I made seems to have "optimal speed" and when it's at it, it works fine, but a little bit after that it stops generating propulsion.

I forgot to specify that I have a freespin rotor behind the main rotor so as not to transfer torque from the engine to the plane, but I think that rotor is one of the sources of problems, but when i remove it it turns into a hand spinner

@zwen
I do not updated because google playstore does not want to update it, it just says i do not have HD Space!

:(

Can you pls just tell me the funky tree code

@Dragorans check this example. Hope it helps

@zwen and i try to put liftScale but the overload doesn't accept the input idk

@zwen
1: I like to use the old bigger rotator because its more stable, it just does not explode unlike the slim one.

2: im a mobile player, did you forgot 1.9?

By the way, how did you not explode the rotator when it's spinning at 100??? I usually keep the input like sum(Throttle * 8) and speed at 5. Did you use any mods?

@Dragorans NACAPROP is a type of wing that SP used for prop engines. You can edit it with Overload on the Wings page. There's not a lot of differences between NACAPROP and Symmetric. NACAPROP also produces less force than Symmetric, but it does not stall whatsoever. So it makes the rotor perform better at low speeds.

Ok, but, NACAPROP?

I assume you are using rotators to spin wing blades. If that's correct, you need to place them in pairs to prevent spinning. Then try to change the wing type to NACAPROP which has better high AOA performance. Also, add a line in the "WIngs" section in Overload specifying liftScale to something like 5 or 10. Hope this helps!