PW1500 Accel/Decel Calculator

Power acceleration and deceleration test — Step 20 N1 targets.

Recorded parameters (Step 17)

Ambient temperature (Engine T2)

Test-site altitude (ft)

N1 MTO (% N1 at Max Take Off)

Indicated % N1 read off the engine at stabilized Take Off power (recorded in Step 17, with the derate selected per engine model in Step 15).

Approach Idle N1 Target

—%

Timed Acceleration N1 Target

—%

N1 Decay Target (deceleration)

—%

Reference — Tables 7 & 8 and source

AMP BD500-A-J71-00-00-01AAA-320A-A, Issue 017 (2023-07-12) — Power plant: Operation test (Power acceleration and deceleration test). Sea-level values; scaled by altitude/temperature per Step 20.

OAT °C	OAT °F	Approach Idle N1 %	Decay N1 %