INTERMEDIATE FLIGHT PREPARATION WORKBOOK
Zero Fuel Weight Center of Gravity
Zero Fuel Weight Moment
Zero Fuel Percent of MAC
Engine Fan Speed - Measured in percent
Engine Turbine RPM - Measured in percent
Revolutions per Minute - Measured in percent
H101. TAKEOFF CONSIDERATIONS
Selection of ACM (On or Off)
ACM is normally selected ON for takeoff. If the takeoff can not be accomplished at the desired
takeoff conditions with ACM ON, it is sometimes possible to gain sufficient performance
capability with ACM OFF to accomplish the takeoff and climbout.
Reduced %N1 takeoff is approved only with ACM ON and ENGINE
Wind and Gradient
Accounting for wind in planning the takeoff or landing requires the wind direction and speed be
known. After obtaining the wind direction and speed, determine the headwind (tailwind) and
crosswind components from Takeoff and Landing Crosswind Chart in the PCL. Application of
wind components to takeoff and climb data is discussed on the next page.
Benefits of headwinds are normally accepted as an increased margin of safety and not accounted
for in takeoff planning. However, if mission requirements dictate, use 50% of the steady
headwind component when determining CFL, VCEF, VR, VB, and takeoff distances. Do not apply
headwind components for terrain clearance.
H102. CLIMB CHARACTERIZATIONS
The recommended climb speeds for the 2-engine rate climb and the 1-engine inoperative climb
are close approximations to the speeds for best rate of climb. The climb speed for 2-engine
operation is 220 KIAS from MSL to 30,600 feet, and M 0.60 at altitudes above 30,600 feet.
H-4 T-1A PERFORMANCE MANUAL EXTRACTS