Lumenier RB2205C-12 2400KV SKITZO Ceramic Bearing Motor
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Old Dec 29, 2011, 12:16 PM
hastf1b is offline
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F1B is ok.
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Older Flying Wings (Nurflügel)


Large flying wing by Wolfgang Zwilling.

From "Der Flugmodellbau" october 1955

Heinz
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Old Dec 29, 2011, 12:24 PM
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F1B is ok.
A further design of Wolfgang Zwilling.

From "Der Flugmodellbau" march 1954

Heinz
Old Dec 29, 2011, 03:55 PM
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The 1954 model has the benefits of a swept wing (the tips are well behind the CG for pitch control) without the problems associated with spanwise flow.

All done without carbon fiber. Amazing.

I wonder if there were ANY high performance flying wings here in the States back then.

Kent
Old Dec 29, 2011, 04:55 PM
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Deniable plausibility
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Originally Posted by Knoll53 View Post
I wonder if there were ANY high performance flying wings here in the States back then?
Jack Northrop may have had one or two...
Old Dec 29, 2011, 07:24 PM
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Jack Northrop may have had one or two...
Oh sure..... I guess some would say that those were high performance, for what they were. No high aspect ratio sailplanes from Jack though.
Old Dec 30, 2011, 04:04 AM
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not sure if they strictly count as vintage, but Jupp Wimmer's wings certainly have that feel to them- http://flyingwinggliders.blogspot.co...pp-wimmer.html
Old Dec 30, 2011, 10:40 AM
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Quote:
Originally Posted by Knoll53 View Post
I wonder if there were ANY high performance flying wings here in the States back then.
There were the full-scale Burgess-Dunne wings here 100 years ago:

http://www.ctie.monash.edu.au/hargrave/dunne.html

Roger
Old Dec 30, 2011, 11:09 AM
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Cool
Thanks for the link.

Kent
Old Dec 30, 2011, 11:49 AM
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internet gadfly
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Originally Posted by Zaurak3 View Post
There were the full-scale Burgess-Dunne wings here 100 years ago:

http://www.ctie.monash.edu.au/hargrave/dunne.html

Roger
John Dunne doesn't get the recognition he deserves. He invented the swept wing with washout and elevons at the tips. He patented elevons some time before WWI and one of his 'wings was the first documented inherently stable airplane. It's a shame that heart disease forced him to retire early because at the time nobody understood his theories well enough to continue developing the type.

Speaking of old Nurflügeln: Tailless Tale by Ferdinando Galè has hundreds of drawings and math. It looks like it's still available from the B² book store.

--Norm
Old Dec 31, 2011, 06:08 AM
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F1B is ok.

Erwa 8


The fuselarge has enough space for rc.

Heinz
Last edited by hastf1b; Dec 31, 2011 at 10:07 AM.
Old Dec 31, 2011, 10:40 AM
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Erwa 8


I've always admired the free flight guys. The kings of light wing loading.

I couldn't make out a date on the drawings. Is this design from the 1950's?

Kent
Old Dec 31, 2011, 11:41 AM
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F1B is ok.
Yes 1950/51. All plywood and spruce.

Heinz
Old Dec 31, 2011, 01:55 PM
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Speaking of older flying wings


I recently acquired a Robbe Geier. I'd like to set it up for winch launching & aerotow but I need the center of gravity and towhook locations. Can anybody help?
Old Dec 31, 2011, 03:17 PM
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F1B is ok.
Robbe Geier

CG is 106 mm behind the leading edge.

Heinz
Old Dec 31, 2011, 06:58 PM
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Thank you


Thanks for the Geier information so promptly.
A HAPPY NEW YEAR TO ALL!!


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