What is APR Thrust in Pounds?

What is APR Thrust in Pounds?

• A. 13,790 lbs
• B. 12,670 lbs
• C. 14,000 lbs
• D. 12,000 lbs

Answer: (A)

APR thrust is the maximum thrust a single engine is rated to produce for takeoff, used in performance calculations. For the CRJ-550, each CF34 engine is rated at about 13,790 pounds of thrust. So the APR thrust value in pounds is 13,790 per engine (the airplane has two engines, so total takeoff thrust would be about 27,580 pounds, but APR refers to per‑engine thrust). The other numbers don’t match the engine’s official per‑engine takeoff thrust rating, which is why the 13,790 figure is the best fit.

APR thrust is the maximum thrust a single engine is rated to produce for takeoff, used in performance calculations. For the CRJ-550, each CF34 engine is rated at about 13,790 pounds of thrust. So the APR thrust value in pounds is 13,790 per engine (the airplane has two engines, so total takeoff thrust would be about 27,580 pounds, but APR refers to per‑engine thrust). The other numbers don’t match the engine’s official per‑engine takeoff thrust rating, which is why the 13,790 figure is the best fit.