The Hughes 500C that "Walker" flew throughout the film is one of the few turbine-engine helicopters (worldwide) which is flown single-pilot from the left seat. Since people tend to scan visually from left to right... the same way they read a book... it was more effective to have Walker in a left-facing helicopter like the 500C, as opposed to say, a Bell JetRanger, or a Fairchild FH-1100 which are flown from the right seat. Director William A. Graham shot all of the close-ups from the left side of the ship, usually looking slightly upward, with a tight depth-of-field. This threw everything behind Walker's shoulders out of focus. However, this was a dual-control ship! Note particularly the take-off after Walker fueled-up from the tanker truck. If you look closely (despite the fuzzy focus) you can readily see that the right-seat position looks unusually lumpy. That's because the film pilot who was doing the actual flying, was crouched in there, under a black shroud.
