Page:Aerial Flight - Volume 2 - Aerodonetics - Frederick Lanchester - 1908.djvu/392

App. V. Curve No. 9. (Tumbler.)

Lowest point on curve,

whence

Curve No. 10. (Tumbler.)

Lowest point on curve,

whence

Curve No. 11. (Tumbler.)

Lowest point on curve,

whence

Curve No. 12.

Lowest point on curve,

whence

The calculated values of r for the preparation of trammels for the plotting of the curves as above are appended.