2B-80 Developed for Training Purposes Leerjet 35/36
December 1998
CAE SimuFlite
Starting
Use of a GPU for an engine start is recommended at tempera-
tures of 32°F (0°C) or below. Ensure the GPU is regulated to
28V DC and has an amperage rating between 500 and 1,100
amps.
SPR can be used for starts at temperatures below 0°F (-17°C).
During a start using SPR, release the SPR switch at 300-400°C
turbine temperature (ITT). Do no energize SPR at any time
other than engine start.
Engine fan acceleration is much slower than normal and the
ITT increases rapidly due to the slower engine spool up. If fan
speed (N1) does not rise with turbine speed (N2) or stops dur-
ing the start attempt, or if ITT is rising rapidly and appears likely
to exceed the start limit, abort the start.
Oil pressure can be expected to exceed the maximum allow-
able transients. Do not exceed idle power with oil temperature
below 30°C. However, if the outside temperature prevents the
oil temperature from reaching 30°C, idle power may be
exceeded as required to further warm the oil to normal operat-
ing limits prior to takeoff.
If the outside temperature is below -13°C, operate the engines
for at least 3 minutes to bring the hydraulic system up to normal
operating temperature prior to takeoff.
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