I was going to babble on about the Coanda effect but found this to be better. That theory about molecules dividing and meeting at the trailing edge does not cut it for me any longer....years of misinformation!!


http://jef.raskincenter.org/publishe...da_effect.html

when u have time, go thru this thread. many of the points have been discussed:

http://www.rcuniverse.com/forum/m_26...CRaskin/tm.htm