plummet wrote:Well I can weigh into this argument with some experience.
What is faster lei or foil... depower foil or fixed bridle?
I have raced in the buggy and landboard with flysurfer speed 3, ozone manta, summit, edge, c4, catalyst, frenzy, access.
I have races guys on some of the vapour, reactor, yakuza a variety of arcs and other slower fixed bridles.
What is fastest head to head?... All other aspects being equal. The fixed bridle race kites win everytime IF they are perfectly powered in their small wind range. In that wind range I can't touch them.
But if the wind is variable then its game on. I can compete with a depower foil. As the winds get more variable then the lei with the larger range becomes the weapon to choose.
If it is wet leis win hands down. Foil performance goes out the window.
What will ultimately go faster lei or foil.
So lighter steady winds... your out of luck on you inflatable.
But as the wind increases to stupid levels its usually very gusty and the vast AOA adjustment at the bar of an lei means you can adjust to the perfectly powered position. Couple this with significantly reduced bridle drag I believe that leis will over take foils for ultimate speed one day.
Sorry Bille, I'm with Billy B on this one. The inflatables aren't close at the moment because nobody had run them at the right time on the salt flats.
So I see there has been a big discussion on here about my record and what kite may be faster on the dry lake. Let me clear the air a little.
I have been testing 3 types of High AR kites in High wind(50+mph). So far the following are my results:
-2.7m Vapor(fixed bridle foil) - 84.1 mph
-9m Phantom 2(Twinskin foil) - 80 mph
-7m Fury (LEI) - 76 mph
With all the testing here is what my results have shown:
-Fixed bridles give you the Fastest Acceleration.
PROS - Since you have NO depower you get a maximum acceleration when a gust hits.
CONS - Can be unstable in Extreme Lulls.
-Twinskins just keep pulling and pulling. It works off of your apparent wind and will take you as fast as you want to go.
PROS - Having depower allows you to adjust the kite to the wind speed. It also has pretty light bar pressure.
CONS - Launching one of these in 50-60 mph is SKETCHY! I don't suggest it to anyone unless you are very seasoned on these kites.
-LEI's are very easy to control.
PROS - As everyone knows these kites handle extremely well in high winds and gusty conditions. When a 20 mph lull hits the kite will keep its shape and drift back into the wind.
CONS - Once you get up to 70+ the bar pressure gets exponentially heavier which prevents you from holding your line and hitting max speed.. Also the LEI's have to much parasitic drag. Perhaps the LEI will reign supreme with an extremely small LE and a few other changes to alleviate the bar pressure, even more.
Now I know some people may say that some kites have lighter bar pressure than others. Well I haven't flown every kite on the market, but one thing everyone, that has flown the kite, has said about the Fury is the bar pressure is among the lightest.
IMO there are some hurdles that we need to cross to reach 100+ with a kite. But I think when we do it will be with a rigid wing, not a foil. However, that being said, Although LEI's and Twinskins have huge potential...the fastest kite out there at this point for LAND is a fixed bridle foil.