Skyout field tools

MacCready
Speed-to-Fly

Set your wing and the air you're flying through. You get the airspeed that loses the least time on the way to your next climb.

Conditions

0km/h

20 tail020 head

0.0m/s

2.0 sink02.0 lift

0.0m/s

02.04.0 climb

Readout

Sink · m/s
Airspeed · km/h
  • Glide polar
  • MacCready tangent

The tangent touches the polar at your speed to fly. That's the whole method, drawn.

Cockpit card

Speed to fly for each climb rate, at the wind and airmass set above. Print it and fly it.