December 2022 - Clarified March 2023
These are the maximum airspeeds for having the flaps extended, based on deflection in flight:
10 DEGREES DOWN ---100 MPH
20 DEGREES DOWN ---85 MPH
30 DEGREES DOWN ---75 MPH
40 DEGREES DOWN ---65 MPH
Deflections are in flight, with air loads. On the ground, deflections will be greater. Systems built as drawn on the plans, with flaps fully retracted on the ground, will deliver very close to these deflections.
These speeds apply to the Bearhawk 4-Place Model B, Bearhawk Patrol, and Bearhawk Companion. The original Bearhawk 4-Place uses a different flap design which allows for higher speeds.