TM 55-2840-254-23
1-107 TEST ENGINE (AVIM) (Continued)
1-107
a. Simultaneously jam N1 master hydronic control from flight idle to hydronic control position deter-
mined in the preceding NOTE, and depress timer start switch. Hydronic control movements shall be
accomplished in 0.5 second or less.
b. At the point where engine reaches desired SHP, stop timer. Record acceleration time and maximum
power turbine inlet temperature. Acceleration time shall be within limits given in graph below.
Nominal Flight Idle (No Load) Gas Producer Speed and Acceleration Time Limits
Versus Engine Inlet Temperature
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