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Old Dec 29, 2007, 03:17 PM
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What were the origional PNF and TWF slopers.


I was looking at the "How will I know it's you???" thread and noticed a photo with an old R&R Nova in it.

Well, that got me thinking - What were the first pointy nose and twisty wing slopers?

First pointy nose sloper I can think of was the Nova. No clue as to what was the first twisty type sloper. Photos if you've got 'em.

Jeff
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Old Dec 30, 2007, 03:38 AM
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first REALLY PNF model was probably the Sitar Special
Old Dec 30, 2007, 11:56 AM
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How old is the Higgens rodent design?
Old Dec 30, 2007, 12:12 PM
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I'd like to make a special mention that we wouldn't have the acronym PNF if it weren't for Brian Laird (TFLG), who claimed a few years ago that the Northern California slopers had a Pointy Nose Fetish. From there, we have since developed the TWF acronym to help define our twisty-wing-obsessed brethren.

Just wanted to get some history in here and throw a shout out to TFLG for one of his many contributions to the world of sloping.
Old Dec 30, 2007, 12:13 PM
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Sitar special - yep - pointy!
And the reason was - not to be fast (as people thought), but to land on/into snow covered alpine slopes - just dork it into the snow! (or so I'm told - I've found it also works with a fairly pointy Sagitta Project Two & long grass or soft mud (!)
Twisty wing - Sailplanes international "Axle" (?) in the late 1970s ?
Old Dec 30, 2007, 12:27 PM
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Earliest European TWF's I remember where the AXEL (French 100") and the SI AXLE (60" I think) from about 1980.
Old Dec 30, 2007, 02:42 PM
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VS Sailplanes TWF


I first saw Ken Stuhr's VS line of TWF at Eagle butte during the '89 Nats held in Tri-Cities, Wa. They had been around for a while, and he was selling kits there at the slope. I bought a bunch of stuff and still have some squirrelled away for later.

There was also an all-molded 55" wingeron plane called the GP 100 that was really sweet. I got to meet the designer, I don't recall his name. He had some sort of machined hardware to make his wings twist.

Interesting to note is that the rere Kestrel would never have been if Tom Feldvebel would have been able to obtain a Rotor kit to build. Tom wanted a TWF really bad, and missed the boat on VS's production lifecycle. So, he designed the Kestrel, a T-tailed pitcheron.


WinchDoc
Old Dec 30, 2007, 02:52 PM
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The Sailplanes International Axle was one of the first TWF planes I was aware of. The design dates back to the late 70's. Also, Jerry Bridgeman's Snipe was available in the early 80's. There was German design that Wilshire Model Center carried in the mid 80's called the "Spiral". The CR and VS designs all came much later.

I think the Axle was one of the first if not the first TWF, unless someone knows of an earlier design.

Doubletap
Old Dec 30, 2007, 03:26 PM
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Quote:
Originally Posted by winchdoc
There was also an all-molded 55" wingeron plane called the GP 100 that was really sweet. I got to meet the designer, I don't recall his name. He had some sort of machined hardware to make his wings twist.
I remember the GP Ultra from the World Soaring Jamboree in 93(?) or 94(?). The fellow's name was George, probably George P. Why didn't you buy one doc? I wanted one so bad but had no money...

I did own a German wingeron around 1973. Can't remember what it was called, but it had 2-meter span, balsa-sheeted styrofoam wing, a fiberglass fuse, full-flying stab, and rudder.

Dieter Mahlein, ShredAir
Old Dec 30, 2007, 04:02 PM
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I really thought CR Charlie made it happen, He gave me the 5th Tubo ever
Old Dec 30, 2007, 05:11 PM
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What about the 120" Hegi wingeron from the late 70's?
Old Dec 30, 2007, 05:39 PM
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Quote:
What about the 120" Hegi wingeron from the late 70's
actually it was a 160" Hegi SB 10 wingeron.
Picture from 1978 (still have my bike jacket on)
Cheers
Thomas
Old Dec 31, 2007, 11:28 AM
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Quote:
Originally Posted by wakumann
actually it was a 160" Hegi SB 10 wingeron.
Picture from 1978 (still have my bike jacket on)
Cheers
Thomas
Makes me wonder what kind of servos you used in 1978 to articulate 160" wings
Old Dec 31, 2007, 01:29 PM
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what about the wright brothers gliders, they had twisty wings
Old Dec 31, 2007, 01:43 PM
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Quote:
Originally Posted by Phillybaby
what about the wright brothers gliders, they had twisty wings
Whoah - way to go - that must be "TWF = The Wright Flyer"


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