Howdy,
Could y'all give some consideration to creating a damage control model? If my engine is hit and on fire, I envision that I'd want to shut it off manually and feather the prop with the result that my plane won't burn down.
If I'm in a twin engine plane and one engine dies, shutting it off in time should mean that the wing stays on longer, like in real life. There is no current method for extinguishing a flame, so it's time to bail.
This could be a low cost alternative to a full 'fire extinguishers' type model.
Best regards,
Chairboy