When skidding along the ground at an enemy airport you can lower the landing gear, move around, and takeoff.

[AircraftECSEngineer]

I like to fly low over airfields shooting cannon and rockets at tanks of aviation gas and flying thru the flames.

 

Sometimes I hit the ground and skid along the earth.

 

I found that I can lower the landing gear on the ground (impossible in real life), cut the throttle, and drive around and takeoff.  I set Realism to Custom “Invulnerability” to keep my aircraft from being damaged.

 

Once I when I motored around on the ground I shot a parked B-25 Mitchel.  Other times I drove thru the burning tanks of gas that I exploded.

[AndyJWest]

"I set Realism to Custom “Invulnerability” to keep my aircraft from being damaged". In other words, if you set the game up to be utterly unrealistic, it does utterly unrealistic things...