When the jet crashes, we see a shot from below showing a large portion of it poking out over the cliff. We then cut to the parachutists, and when we cut back to the jet, we see that very nearly all of it is safely on rock.
The stunt early on in the film where Eric Qualen and his team do the plane to plane transfer was performed by British stuntman Simon Crane. The stunt was performed at an altitude of 2.95 miles (4.75 km) and was the most expensive stunt ever performed costing £568,000(£1 million). Sly Stallone is said to have reduced his fee by that amount to ensure the stunt was made.