What is the recommended exhaust distance behind the rear of the aircraft?

• A. 200 ft away from the rear
• B. 100 ft away from the rear
• C. 300 ft away from the rear
• D. 50 ft away from the rear

Answer: (A)

Jet exhaust can blast with high velocity and heat, capable of knocking people, bending equipment, or causing burns and debris hazards in the area directly behind the aircraft. To protect ground personnel and keep operations safe, a typical safety guideline sets a standard clearance behind the tail.

The recommended distance is 200 feet behind the rear of the aircraft. This distance balances safety with practicality, ensuring the jet blast and heat dissipate enough to avoid injury or damage during engine start, run-up, or high-power operation. Distances like 100 or 50 feet are too close and risk exposure to the blast, while 300 feet is more than the standard requirement for most situations.