Full reverse power is approximately.

• A. 95% of forward thrust
• B. 75% of forward thrust
• C. 50% of forward thrust
• D. 25% of forward thrust

Answer: (C)

When a thrust reverser is fully deployed, the exhaust flow is redirected forward to create a braking force. You can’t completely reverse all of the engine’s momentum, and there are losses in the reverser geometry and ducting, plus some forward-directed components of thrust remain. For most engine/reverser designs, these factors limit the maximum reverse thrust to about half of the forward thrust. Therefore, full reverse power is typically around 50% of forward thrust. The other options either overstate or understate what a reverser usually delivers in practice.