Airman Certification Standards
ACS CA.IV.C
Soft-Field Takeoff and Climb (ASEL)
Knowledge
Effects of atmospheric conditions, including wind, on takeoff and climb performance.
Best angle of climb speed (VX) and best rate of climb speed (VY). 21
Appropriate airplane configuration.
Ground effect.
Importance of weight transfer from wheels to wings.
Left turning tendencies.
Risk Management
Selection of runway based on pilot capability, airplane performance and limitations, available distance, and wind.
a. Crosswind
b. Windshear
d. Wake turbulence
e. Takeoff surface/condition
Abnormal operations, including planning for:
a. Rejected takeoff
b. Potential engine failure in takeoff/climb phase of flight
Collision hazards.
Low altitude maneuvering, including stall, spin, or controlled flight into terrain (CFIT).
Distractions, task prioritization, loss of situational awareness, or disorientation.
Skill
Complete the appropriate checklist(s).
Make radio calls as appropriate.
Verify assigned/correct runway.
Determine wind direction with or without visible wind direction indicators.
Position the flight controls for the existing wind, if applicable.
Clear the area, maintain necessary flight control inputs, taxi into takeoff position and align the airplane on the runway centerline without stopping, while advancing the throttle smoothly to takeoff power.
Confirm takeoff power and proper engine and flight instrument indications.
Establish and maintain a pitch attitude that transfers the weight of the airplane from the wheels to the wings as rapidly as possible.
Lift off at the lowest possible airspeed and remain in ground effect while accelerating to VX or VY, as appropriate.
Establish a pitch attitude for VX or VY, as appropriate, and maintain selected airspeed ±5 knots during the climb. 22
Configure the airplane after a positive rate of climb has been verified or in accordance with airplane manufacturer’s instructions.
Maintain VX or VY, as appropriate, ±5 knots to a safe maneuvering altitude.
Maintain directional control and proper wind-drift correction throughout takeoff and climb.
Comply with noise abatement procedures, as applicable.
Retrieved from ecfr.gov on July 17, 2026.