Blade flap

Definitions

• The ability of the rotor blade to move in a vertical direction. Blades may flap independently or in unison.
• The ability of the rotor blade to move in a vertical direc-tion. Blades may flap independently or in unison.

References

• Helicopter Flying Handbook, Federal Aviation Administration, 2019
• Rotorcraft Flying Handbook, Federal Aviation Administration, 2000