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First swept aircraft wing aircraft (Read 440 times)

Sep 25^th, 2004 at 1:59pm

randombeaner Offline
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what was the first swept back wing aircraft and what year was it created?

I thoght it was the Me-262 but now i heard something about the P.1101, im just asking so i can use the correct info on my report.

Thanks in advance

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Reply #1 - Sep 25^th, 2004 at 2:29pm

Felix/FFDS Offline
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as powered aircraft, I would venture that the Dunne flying wing designs of ca.1911-1914 were, in any event, the first "practical" swept wing designs.

You'll find that many WW1 airplanes had some degree of sweep to top or both wings.

The Me P.1101 design came after the Me.262 and the P.1101 was never completed and flown (although it served as the design basis for the later Bell X-5)

Felix/FFDS

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Reply #2 - Sep 25^th, 2004 at 4:59pm

randombeaner Offline
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Thanks I'll probably use the 262 due to the fact that im trying to use it as the first aircraft to have swept wings as a solution to a big problem in this case "wave drag" i think its called

but I completely forgot about the WW1 fighters, was that intentional (I highly dobt they were anywhere near Mach 1 Grin

), or was it just for stability and/or looks?

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Reply #3 - Sep 25^th, 2004 at 6:15pm

Hagar Offline
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Quote:

The Me P.1101 design came after the Me.262 and the P.1101 was never completed and flown (although it served as the design basis for the later Bell X-5)

I don't know how accurate it is or whether they flew or not but I've seen several references like this.
Quote:

The result was a crash program to introduce new swept wing designs, both for fighters as well as bombers. A prototype test aircraft, the Messerschmitt P.1101, was built in order to research the tradeoffs of the design and develop general rules about what angle of sweep to use. None of the designs were ready for use by the time the war ended, but the P.1101 was captured by US forces and returned to the United States, where two additional copies with US built engines carried on the research as the Bell X-5.

Some interesting info on this site. http://www.fact-index.com/s/sw/swept_wing.html
The Me 262 is generally regarded as the first swept-wing jet fighter to be used operationally. This is not surprising as I believe it was the first operational jet of any type. It might not have been the first swept-wing jet aircraft to fly but the P.1101 was one of the first variable-geometry designs - although the sweep angle was adjustable on the ground & not in flight.

Quote:

but I completely forgot about the WW1 fighters, was that intentional (I highly dobt they were anywhere near Mach 1 ), or was it just for stability and/or looks?

In many cases this would have been a convenient aerodynamic method for positioning the C of G. Early aero engines (especially rotary engines) were much heavier than modern ones. You only have to look at how short the noses are on many WWI fighters.* A little sweepback would tend to make them more stable. The DH.82a Tiger Moth is a good example of another practical reason. It was converted from the straight-winged DH.60 Gipsy Moth. The centre section struts were moved forward to allow easier access to the front cockpit. The top wing was swept back a corresponding amount to maintain the C of G position.

*PS. Although it has straight wings this photo of the Sopwith Camel (taken at Biggin Hill last weekend) illustrates my point. It also gives me a good excuse for posting it. Wink

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Reply #4 - Sep 25^th, 2004 at 8:51pm

randombeaner Offline
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thans for the info

and love the the cammel, nice pic!

I had a dream about that airplane last week. mmm good stuff!

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Reply #5 - Sep 26^th, 2004 at 10:52am

Felix/FFDS Offline
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You could make the point that the Me262 probably was the first operational aircraft to have swept wings *for aerodynamic reasons* rather than for CG location purposes.

Felix/FFDS

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Reply #6 - Sep 26^th, 2004 at 11:06am

randombeaner Offline
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yes I did and I made a little endnote about the Tiger Moth, worked out well

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