To much string on those ram air kites... that's gotta increase drag.
Yes --- they Do create drag.
But the drag increases by the square of the velocity ; so in the really Light winds
the drag is negligible. An LEI is a Horrible example of an airfoil by Hang glider
standards, but they work well in the speed ranges we normally fly in with our water
The current ram-airs are a bit of a Joke compared to a state of the art Para glider.
My Ozone Addict Medium has about 26M and it is a Bunch faster than a speed 21 ;
too bad it doesn't float !!
I wouldn't bash a ram-air or a LEI for it's design criteria, there different machine's
and they both work well for what we ask of them !
PMU --- you ARE a hang glider pilot so , i'm a bit surprised at "You" for : ...