Adding aircraft damage to flight models in IF would increase realism tremendously and make the sim even more interesting (ex: Emergency scenarios such as engine out, engine fire, etc can be added as missions and practiced as well).
G forces are already measured IF so this in addition to other things can help with designing the damage model.
Some examples of aircraft damage that could be added:
Airframe damage from hard landing: A high G force landing (ex: more than 1.5 Gs) would result in airframe damage such as landing gear damage etc.
Engine Failure: Exceeding 100% N1 for a certain period of time will result in an engine failure.
Engine fire: Exceeding 100% N1 for a certain period of time will result in an engine fire.
Aircraft in flight breakup: Exceeding aircraft G limits or exceeding V never exceed (barber pole) will result in the aircrafts structure being compromised.
Icing: If you fly in weather conditions where icing is possible and you don’t turn on anti ice systems for wings and engines, those items can fail.
These are just a few ideas for aircraft damage that could be incorporated into IF. The option to have aircraft damage turned on or off would be included in settings. Feel free to comment.