Kitfox-List Digest Archive

Thu 04/20/17


Total Messages Posted: 2



Today's Message Index:
----------------------
 
     1. 12:20 AM - Re: Avid Flyer Speedwing and STOLwing (Michael Gibbs)
     2. 11:18 AM - Re: Avid Flyer Speedwing and STOLwing (Guy Buchanan)
 
 
 


Message 1


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    Time: 12:20:40 AM PST US
    From: Michael Gibbs <michaelgibbs@cox.net>
    Subject: Re: Avid Flyer Speedwing and STOLwing
    I don't know how the Avid Speed- and STOL wings compare to the Kitfox airfoil but I have about 15 hours in long-wing Kitfoxes and 67 hours with clipped ("Speedster") wings. Guy's analysis is basically correct although on the low-end there is very little difference in performance. The factory's stall speed figures are the same for both and any difference in approach and landing speeds is hard to even notice. The short wings provide a noticeably quicker roll rate (the factory claims 130 degrees/second) and a bit more speed in cruise. All other things being equal, I prefer the handling qualities of the short wing and plan to clip the wings on my Series 7 Kitfox while it is down for its annual inspection this month. Mike G. Kitfox Series 7 Phoenix, AZ > On Apr 19, 2017, at 11:10 PM, George Nielsen <genie@swissmail.org> wrote: > > > Thank you for your reply. I find it useful. I have not spoken to anyone who has flown both types. > > What kind of gliders do you fly? > > George > >> On 19-Apr-17 17:18, Guy Buchanan wrote: >> >> Don't know if you'll get an answer from someone who's flown both, but I might help you with a physics answer. Shorter wings means faster roll rate which is good. Faster roll rate means more control, both in the air and on the ground. Shorter wings also mean higher speed, which is good and bad. Higher landing speed means faster reactions are required on your part, plus a much longer roll-out (goes as the square of the touchdown speed) which means more opportunity for a gust to catch you or other "adverse stimuli". However shorter wings also offer less lift on the ground and less opportunity for wind to push you around. Shorter wings mean you can land in more crosswind, which is good. (More deck angle plus higher landing speeds.) >> >> I know of many Kitfoxes with short wings and the owners love them just the same. I suspect the differences are small enough to anyone to manage. >> >> Guy Buchanan >> Ramona, CA >> Kitfox IV-1200 / 912-S / Warp 3cs / 600 hrs >> Glider pilot, too >


    Message 2


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    Time: 11:18:48 AM PST US
    Subject: Re: Avid Flyer Speedwing and STOLwing
    From: Guy Buchanan <gebuchanan@cox.net>
    Mostly the rentals here at Warner, Grob 102s and 103s, though I have some time in Duo's and Discus' at Omarama and Minden. I haven't purchased one yet, but would love to have an ASW-20 with winglets. Guy Buchanan Ramona, CA Kitfox IV-1200 / 912-S / Warp 3cs / 600 hrs Glider pilot, too On 4/19/2017 11:10 PM, George Nielsen wrote: > > Thank you for your reply. I find it useful. I have not spoken to > anyone who has flown both types. > > What kind of gliders do you fly? > > George > > On 19-Apr-17 17:18, Guy Buchanan wrote: >> >> Don't know if you'll get an answer from someone who's flown both, but >> I might help you with a physics answer. Shorter wings means faster >> roll rate which is good. Faster roll rate means more control, both in >> the air and on the ground. Shorter wings also mean higher speed, >> which is good and bad. Higher landing speed means faster reactions >> are required on your part, plus a much longer roll-out (goes as the >> square of the touchdown speed) which means more opportunity for a >> gust to catch you or other "adverse stimuli". However shorter wings >> also offer less lift on the ground and less opportunity for wind to >> push you around. Shorter wings mean you can land in more crosswind, >> which is good. (More deck angle plus higher landing speeds.) >> >> I know of many Kitfoxes with short wings and the owners love them >> just the same. I suspect the differences are small enough to anyone >> to manage. >> >> Guy Buchanan >> Ramona, CA >> Kitfox IV-1200 / 912-S / Warp 3cs / 600 hrs >> Glider pilot, too >> >> >> >> >> >> > >




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