Harald Prinzler
Detmolder Stra├če 42
D-33189 Schlangen
Phone: +49-5252-7830
Fax: +49-5252-7830
email: hprinzler@aol.com
URL: http://members.aol.com/hprinzler

Scetches Flowform no. 4

These scetches for the flowform no. 4 are made by Alberto Bonati, Italy. Thank you very much for this fine and fast work.

ff04_ab1.gif
ff04_ab2.gif
ff04_ab3.gif

To lead the drag better through the keels it is better to make the keels out of more than one piece. First, draw a line through the half of the angle at the bridle point to the base line (use keel K1). With a base line of 5m I have to divide these pieces again. Take care to the orientation of the fabric.

ff04_hp1.gif

Between the handmade profiles (p2, p3, p4) and the profiles calculated with my airfoil calculator KiteFoil 2.00 are some small differences in the profile shape. I think the flying result is nearly the same.

ff04_hp2.gif