And the Jack Sheeks ' that looks round to me ' ( not being derogatory - just descriptive , as it is a master of visual deception , as to ' Round ' . )
Dunno if anyone enirely believed the explanation , as to the photogaph .
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And a fairly good one of the ' End Plate ' ( on ailerons here ) type set up .
Where if your tips run full chord , can be on the flap or tip ??
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intresting to see the Vortex eliminator type tip Ted .
On the Phanton ( Aeromodelor Mustunt Wing & moments / areas )
tips were parrallel to ribs , but 45 Deg angled , looking for & aft .
Theory was evened lift , upright & inverted - qwith the flat 4 in wide center fuselage underside . .
However , this one at 47 Oz. , got a bit of mushing / unequal ( inv./uprt). under duress.on INSIDES , flying slow in hot or disturbed air .
Extensions of 1/8 sheet added to the 45 Dg. angled tips , from the high point aft - about 1 1/2 wider going back ( at the T E )
Going down to Bill Bells , was blowing firmly but steady .
First test , ' Liftier ' inside resonse , rounds & squares .
Trimmed sweep angle , 1/2 in . + a bit less unequal .
Trimmed to 1/2 O.A. wider at T E , = Ripped round repeated Sq. 8 , horiz , equal reponce ? but right side ( insides )
6 - 12 in lower than left / outsides .
this in a firm steady 15 Kt plus ' good country air ' . near sea level (Flying requireing your undivided attenion )
/ 500 Ft maybe . temp around 15 C.
The most noticeable thing was , the Tips werent ' Walking Around ' , as they had previously , in V similar conditions .
where the forces were apparenty sufficent to presumeably pull the VORTICES about . The Vortices pulling the Wing Tips, wobbly like .
The Extensions appeared to eliminate the Vortices . Or cut them from 20 - 30 foot to 2 or 3 foot trail .
Definately eliminated the Tail ( tips ) wagging the Dog .
( This was the white then Camo. F4E , NOT the Blue One - Which had a development of these )