first off, I’ve been really enjoying your helicopter.
There are just some things that would add a lot off immersion.
Openable doors - I know you can already remove them, but i think it would be great if you could open them by clicking on the handel.
Wing flex - or rather blade flex. It just looks a little bit odd when the helicopter is turned off and the blades are stiff as a board
Sliding windows - on the Bell 47 you can see there are windows in the upper part of the doors, they don’t need to be operable, it just would be nice to see them on the 3d model.
These things are obviusly not important featues. Just would be nice to have them