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ALPHA Trainer LSA
Pilot Operating Handbook
POH-162-00-40-001
PAGE REV. 0
PAGE
SECTION 1
GENERAL
1.7.3. ENGINE POWER TERMINOLOGY
HP
Horsepower is the power developed by the engine.
MCP
Maximum Continuous Power is the maximum power that can be used
continuously.
MAP
Manifold Pressure is the pressure measured in the engine’s induction
system expressed as inHg.
RPM
Revolutions Per Minute is engine rotational speed.
1.7.4. PERFORMANCE AND
FLIGHT PLANNING TERMINOLOGY
g
One “g” is a quantity of acceleration equal to that of earth’s gravity.
-
Demonstrated Crosswind Velocity is the velocity of the crosswind com-
ponent for which adequate control of the airplane during taxi, takeo,
and landing was actually demonstrated during certification testing.
-
Service Ceiling is the maximum altitude at which the aircraft at maxi-
mum weight has the capability of climbing at a 100 ft/min.
-
Unusable Fuel is the quantity of fuel that cannot be used in flight.
-
Usable Fuel is the fuel available for flight planning.
1.7.5. WEIGHT AND BALANCE TERMINOLOGY
C.G. or
CG
Center of Gravity is the point at which an airplane would balance if
suspended. Its distance from the reference datum is found by dividing
the total moment by the total weight of the airplane.
-
Arm is the horizontal distance from the reference datum to the center of
an item’s gravity. The airplane’s arm is obtained by adding the airplane’s
individual moments and dividing the sum by the total weight.
-
Basic Empty Weight is the actual weight of the airplane including all op-
erating fix installed equipment of the airplane. The basic empty weight
includes the weight of unusable fuel and full oil.
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