Pilot's Operating Handbook
Supplement 77
Installation of the PT6A-66D Build Spec 1354
engine on the TBM 900 airplane
Edition 0 - April 15, 2021
Rev. 0
Page 9.77.5
The following conditions are given for all the tables (pages 9.77.6 to 9.77.13) :
● NOTE ●
In
ertial separator must be OFF and BLEED HI msg OFF.
●
- Landing gear and flaps UP.
- BLEED switch on AUTO.
- represent the ISA conditions at the flight level.
The torque must be set at or below the value corresponding to the local conditions of
flight level and temperature.
● NOTE ●
The engine ITT limit at 840°C during continuous operation may be used in case
of operational need.
●
Example, for conditions :
- FL = 260
- OAT = - 22°C
the following tables give the maximum torque to be set.
Maximum climb power
TRQ setting = 83 % for IAS = 124 KIAS (Add 0.5 % of TRQ for each additional 10 KIAS
on climb airspeed), cf. tables figures 9.77.2 and 9.77.2A
Maximum cruise power
TRQ setting = 97 %, cf. tables figures 9.77.4 and 9.77.4A
Recommended cruise power
TRQ setting = 92 %, cf. tables figures 9.77.5 and 9.77.5A
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