Ok. Let me explain, before you hit me with rocks and kick me off of the IFC. I think adding helicopters would be a cool addition as it would give a lot more diversity to the game. With a couple of helicopter pads at some airports I think it would be fitting. Also the name is infinite FLiGHT I say flight in capitals as it implies flying, not just by planes.
Here’s an example of one model that could be added.
Airbus helicopters H160
The H160 is the newest airbus helicopter. It is a medium class so it is not to big but also not to small. Specs:
Max speed: 150 knots
Range: 420 nm
It is technically not out but it is planned to enter service in 2020, if this gets enough votes it could become a thing.