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1-107 TEST ENGINE (AVIM) (Continued)
NOTE
In following step, SHP required and % N2 were determined in
previous step a.
b. Using formula, Torque= (SHP required X 411), determine torque required.
% N2
c. Advance N1 master hydronic control until torque determined in step b. is obtained.
d. Using water in master hydronic control, adjust load on engine until required N2 speed (step b.) is
obtained.
e. Maintain power for 5 minutes. After 2 minutes have elapsed, take a full reading.
20. N2 GOVERNOR OPERATION CHECK
NOTE
If adjustment was made to N2 lever travel on previous test run,
return N2 lever stop screw to original adjustment and remove tag
on fuel control.
a. Calculate actual maximum fuel flow and minimum SHP required at maximum power. Required actual
SHP and Wf are determined by using the following graphs at existing ambient (compressor inlet)
temperatures.
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