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Old 26th Oct 2008, 12:25
  #921 (permalink)  
 
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I don't think the guns were fitted at the time the drawing is based. Howevewr, you are correct in that this is post Fokker /Constantinesco etc. interrupter gears , so that wasn't it's claim to fame.
Not a Nieuport.
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Old 26th Oct 2008, 16:27
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I did think maybe something Gloster to begin with but then talked myself out of it.
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Old 26th Oct 2008, 17:23
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GBZ The evolution of Nieuport to Gloster post-dated this aircraft's existence. It does have a sort of Folland look about it though doesn't it?
It's not a Folland design, incidentally.
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Old 28th Oct 2008, 04:04
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Was the mystery biplane powered by a le Rhone 80-hp rotary?
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Old 28th Oct 2008, 07:24
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The original intention was to fit the mystery aeroplane with a 200 h.p. Clerget 11E . As this engine was then only at a prototype stage (it was never a success in any event) the next scheme was apparently to fit a 160 h.p. Gnome Monosoupape 9Nc.
In the event the aircraft was eventually (under)powered by a Clerget 140 h.p. 9Bf.
Schemes existed to power developments of this aircraft by 250 and even 300h.p. twin row Clerget engines. These however, like the engines, didn't come to anything definitive.
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Old 28th Oct 2008, 11:59
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Looking at the drawing there seem to be recognisable "bits" from different aircraft, especially from Sopwith ones. Is the mystery aircraft the Frankenstein's Monster created by Alcock from different Sopwith models - the Alcock Scout?

This really is a guess as I have never seen an illustration of it.
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Old 28th Oct 2008, 12:26
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S'land.
A very logical postulation!
The Alcock A.1 a.k.a. the Sopwith Mouse. It basically used the upper wings of a Pup the lower wings and forward fuselage modified from a Triplane and the tailplane of a Camel mounted on a new build rear fuselage and fin and rudder. The top wing was at eye level , thus improving the pilots overall field of view, particularly in the upper hemisphere.
As you can see in the drawing below it is not the aeroplane in question though.

Do look again at the mystery aircraft for its aerodynamic feature claim to fame.

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Old 28th Oct 2008, 12:59
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Thanks for the illustration RETDPI. At least I know what it looks like now.

As for the challenge, possible aerodynamic features are; engine cowling, rounded wing tips, "I" struts, staggerwing and pilot placed behind the wings for a better c.g.

None of which helps me to identify the beast.
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Old 28th Oct 2008, 13:49
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I've found a reference to an aircraft named the Courtois-Suffit Lescop CSL-1. Apparently one of the first to have slats on the lower wings. Could this be the innovation referred to? There's a suggestion of something like slats or slots on the lower wing on the 3 view
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Old 28th Oct 2008, 13:51
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S'land
The aerodynamic devices first featured on this aeroplane are not mentioned in your list.
As a further clue this device is today found on a lot of high performance aircraft, for example many jet airliners.
The mystery aircraft was not British.
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Old 28th Oct 2008, 14:04
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Puddinghead ,you have a most inappropriate moniker!

The device in question was not actually a slat or slot but a leading edge flap. These are visible on the lower wings in the drawing and could be hinged to effectively change the camber of the wing, primarily as an aid to lower approach and landing speeds. Unusually this device is also visible on the leading edge of the tailplane.
The mystery aircraft is indeed the C.S.L. 1
Designed by Roger Courtois-Suffit along with Capitaine Lescop the C.S.L.1 flew first in January 1918.
A very logical and well observed response, if I may say so.
Puddinghead you have control

Commiserations to S'land this time for being pipped at the post.
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Old 28th Oct 2008, 16:03
  #932 (permalink)  
 
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Thanks RETDPI,

Here's the next challenge.



Sorry for the slap-dash scan - computers are not my thing I'm afraid


PH
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Old 28th Oct 2008, 19:28
  #933 (permalink)  
 
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"computers are not my thing I'm afraid"

Do tell me , which airline do you fly 340s for ??
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Old 28th Oct 2008, 23:05
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RETDPI

Commiserations to S'land this time for being pipped at the post.
Most kind, but accepted only if by "pipped at the post" you mean that I would not have got the answer in a month of Sundays. Great challenge, a new aircraft to find out about.
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Old 29th Oct 2008, 14:53
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Just over thirty years after my last challenge, and the same country,
Another unmistakeable shape I think,

SNCAC N.C. 1071 ?
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Old 29th Oct 2008, 19:23
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Absolutely correct

The 1948 NC 1071 was the first French multi-engined jet - designed as a carrier- borne trainer, it was to have been developed into a torpedo carrier. I'm not sure what became of the project - I found it in a 1949 reference book.




You have control RETPDI

PS You'll be pleased to know I find flying that other european multi-engined jet much more straightforward that posting images on PPrune.....
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Old 30th Oct 2008, 08:41
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Thanks Puddinghead. There was a plethora of unusual designs immediately post WW2 from France and that was one of the more bizarre. One NC1071 prototype broke up in flight and it was discontinued - just as well I would have thought.
Continuing the nautical theme......... ( and this one is more accessible than my last challenge)

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Old 30th Oct 2008, 13:39
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Is it by Piaggio, it's gull wing is reminincent of the P136 & P166
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Old 30th Oct 2008, 13:55
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This aircraft was not from Piaggio.
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Old 31st Oct 2008, 22:22
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Is it French? Is it powered by Hispano-Suiza?
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