Do you remember when Professional Golfer Payne Stewart died when his Learjet 35 plummeted to the ground after it ran out of fuel?  Granted there was no fuel to ignite a fireball.  The force of the crash compressed the plane to roughly the size of a large pickup truck. The only part recognizable was the tail cone, resting atop the wreckage. If you didn't know it was a crash site, you'd think you stumbled across a trash pile.The wreckage was buried 15 to 20 feet deep