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Old Jun 08, 2010, 07:05 PM
planeman is offline
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Free plan: Glenny & Henderson Gadfly by Sherman Gillispie


Here's another one. Its the Glenny and Henderson "Gadfly", an entrant in the well known British Limpne Trials for ultra-light airplanes in the early and mid 1920s (http://en.wikipedia.org/wiki/Lympne_...ircraft_trials). This one was designed by Sherman Gillispie and was a plan in the April 1955 Model Airplane News. Anything Sherman Gillispie designs will fly fantastically well and this is one of his best. I have built four models from this plan over the years beginning with my April 1955 issue of MAN when I was fifteen. Its the BEST flying scale rubber model I have ever built! If you can't get this one to fly great you should give up and find something like collecting stamps for a hobby.

Use the .PDF file to build from.

Have fun!

Planeman
Last edited by planeman; Jun 10, 2010 at 03:05 AM.
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Old Jun 08, 2010, 07:12 PM
hoffboy is offline
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Pretty much the definition of cute. Tempting to enlarge just a tad for RC.
Old Jun 09, 2010, 12:05 AM
foamdave is offline
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Poohbah,Poohbah,Poohbah,Poohbah,Poohbah.....Rah,Ra h,Rah.....Thanks!

Dave-
Old Jun 09, 2010, 08:32 AM
Trisquire is offline
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...........and a Gadfly flight. Not sure if its the same scale or not:

Gadfly in Geneseo, NY 1994 (2 min 9 sec)
Old Jun 09, 2010, 09:47 AM
Hinomaru is offline
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Planeman, thanks for sharing the plan, it's a very very nice model. What's its span?

Trisquire, fantastic flight. This Gadfly has a DT, am I wrong?
I think the Gadfly in the video is much bigger than Planeman's, maybe twice as much, don't you think so?
Old Jun 09, 2010, 12:45 PM
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I don't see a DT in the pics: http://www.hallmanstudio.com/Gadfly_2.jpg

Its Tom Hallman's 36" span Gadfly. I'm guessing it was a dawn flight, judging from the fog and lack of wind. Tom's got a whole slew of interesting rubber scale videos on his YouTube account.
Old Jun 10, 2010, 02:01 AM
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Yup, that's the way all of my Gadflys flew! The Gadfly will glide very well, a lot better than the one in the video. All rubber powered models should first be trimmed to glide with NO POWER. Once you get the best glide (close to a stall but no stall), THEN you make all adjustments using power with variations in thrust adjustment.

Planeman
Old Jun 10, 2010, 01:35 PM
Applehoney is offline
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Interested to see no apparent incidence difference between wing and stabiliser - rigged zero/zero.

How much amendment required for flying?


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