This is my favorite heli! I originally hoped that it would get more attention..
https://www.simpleplanes.com/a/GE6sf1/Kaman-K-Max-Interlocking-Rotor-Heli

What do you guys think? I think that simple planes should have an option to angle props and other blocks. It would be really useful for things like said helicopter and shock absorbers - you could make more realistic shock towers without xml..