T
RAINING
M
ANUAL
–
L
ANCAIR
IV/IVP
POWERPLANT
TSIO-550
At takeoff power of 2700 rpm and 38(A,B) or 38.5 (E) in. Hg., the TSIO-550
develops 350 horsepower. The engine may be operated at maximum takeoff
power in the climb to cruise altitude. Maximum recommended cruise power
setting is 2500 rpm and 31.5 in. Hg., which yields 263 horsepower or 75% power.
The engine is equipped with two Airesearch turbochargers and dual intercoolers.
Overboost protection is provided by a pressure relief valve to limit compressor
discharge pressure. The two magnetos are pressurized to accommodate high
altitude operations. The engine is equipped with a TCM continuous fuel flow
injection system. This system meters fuel flow in proportion to engine rpm.,
throttle angle, and throttle entrance pressure. Manual mixture control and idle
cut-off are provided. A Dukes auxiliary boost pump is installed. The low-
pressure position is used for suppression of vapor at altitude. The high-pressure
pump position is used as a primer or as an emergency source for fuel pressure.
A primer pump is also installed to assist in engine start. The engine is provided
with a wet sump, high-pressure oil system of 12-quart capacity.
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2007
LOBO
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