Speed Check at Maximum Cruise Power.

TM 55-1510-218-MTF

*D. Speed Check at Maximum Cruise Power.

NOTE

A new or rebuilt engine operated at the

torque value presented in the cruise power

charts will show a TGT margin below the

maximum cruise limit for the torque value

presented in the charts. With ice vanes re-

tracted, if cruise torque settings shown on

the cruise power charts should be obtained

without exceeding TGT limits.

Sped-power runs shall be made in smooth air to de-

termine consistency with performance figures. Torque

settings, fuel flow, and airspeed to be achieved will be

determined by reference to maximum cruise power

and speed charts (figure 9 through 14).

1. Record the following:

*a. Engine serial number

*b. Engine hours since new

*c. Engine hours since overhaul

* 2. Airspeed - Refer to chart.

* 3. Altitude - Refer to chart.

* 4. FAT - Refer to chart.

5. Power setting - Refer to chart.

6. Propeller RPM - Refer to chart.

7. Ice vanes - Retracted.

8. Aircraft weight - Refer to chart.

NOTE

For engines that exceed 730C TGT, engine

acceptance at maximum cruise power, must

be conducted.

4-5