SIPA Prototypes and one-off aircraft

Jemiba

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The SIPA S.50 was a single-seat sports aircraft, built in 1946, the S.1000
Coccinelle a twin-seater touring aircraft from 1955 and the S.251 Antilope
a 4/5 seat touring aircraft with a Turboméca Astazou X turbo prop engine,
but none of those aircraft reached the stage of series production.
 

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From RAF Flying Review Magazine 1962
 

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A slightly different three-view arrangement from a slightly later issue of RAF Flying Review:
 

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Antilope and Anjou
 

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The SIPA 1000 Coccinelle("Ladybird" in French), from Air Pictorial, September 1955:

Intended as a really cheap light aeroplane (although in its "utility" form it will cost £1,300) for club and touring use, the S-1000 Coccinelle was designed and built in a remarkably short time, and was publicly displayed at the Paris Salon in June. A production line for the Coccinelle has already been laid down. Basically, the aircraft will be offered with a 65-h.p.
engine without electrics, or in "de-luxe" form with a 90-h.p. engine and an electric starter.

Salient features:
Of small dimensions, the SIPA-1000 has a blunt nose, with characteristic horizontally-opposed engine intake. The transparent cockpit cover is large with a gentle slope-down at the back. The fuselage is flat-bottomed with marked upsweep towards the tail. The thick constant-chord wing has dihedral from the roots and blunt tips. Fin leading edge is straight while the rudder trailing edge is curved. The tailplane has curved tips with the elevator well aft of the rudder line. Cantilever main undercarriage legs are slanted outwards and the nosewheel forwards . A small tail "hoop" skid is fitted.

Data:
Manufacturer : Société Industrielle pour l'Aéronautique, Suresnes, Seine, France.
Power : Continental A.65 or C.90*
Accommodation: two-seat.
Dimensions: span 25 ft. 11 in. ; length 17 ft. 10 in. ; height 7 ft. 3 in.;
'Weights : empty 740 lb .; gross weight 1,260 lb.
Performance: maximum speed 125 m.p.h., cruising 112 m.p.h. ; range 375 miles.
*Weights and performance quoted for version with 90-h.p. engine.
 

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Hi Stéphane :)
Maybe of interest for the readers. The S-1000 was a design of Yves Gardan (as GY-60) and 2 prototypes were completed (F-WHHL no.01 and F-WHHO no.02) with first flights on 11 JUne 1955 resp. late-1955.
A third unflown airframe (no. 03) was later sold to Agentina and completed by Messrs. Javier Tortorella and Ricardo Siegerist. This aircraft (LV-GFG) first flew in 2002 only and is still active.
There are lots of pics of LV-GFG on the net. Contact friend google.
 
Hi,


I can't define,what was this SIPA STOL aircraft ?.
 

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The well-known, baby DH Vampire-like SIPA S.200 MiniJet (1952), also an Yves Gardan design, was produced in limited numbers (7). With tandem seats and a conventional fuselage layout, the S.300 was an attempt to go after the military basic trainer market. It didn't succeed and there was only the one prototype. The image below is from Luc Van Bavel's excellent site www.machdiamonds.com.

s300brochure.jpg
 
hesham said:
I can't define,what was this SIPA STOL aircraft ?.

That must be the SIPA/Gérard "Aile Flottante" (loose wing):
 

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There is also the S.1100.
http://www.airwar.ru/enc/attack/s1100.html
http://1000aircraftphotos.com/Contributions/VanTilborg/2713L.jpg
http://avions-de-la-guerre-d-algerie.over-blog.com/article-le-sipa-s-1100-58942132.html
http://nhungdoicanh.blogspot.gr/2010/06/sipa-s1100.html
http://crimso.msk.ru/Site/Crafts/Craft32046.htm
http://forum.avionslegendaires.net/viewtopic.php?f=5&t=2839
 

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Yves Gardan was a fabulous fellow who was still into aircraft design into his eighties. A couple of years before he died, he drove me in his BMW 5 series to a restaurant near Versailles and we shared a good bottle of wine together. Going 100% all the way.
I had long discussions with him about y-duct inlet designs like the Sipa-300, and it struck me from that point on how much the aerospace industry keeps reinventing the wheel since all these old farts have retired.
-Luc
 
Wow, I am jealous, Luc. If those Price Induction engines or any other small turbofans ever make it to market, I'll be first in line for a 21st century upgrade to a SIPA S.200 Minijet. Yves really was a talented guy, wonderfully simple--just look at the single lever for flaps and gear all running off of one hydraulic motor.

s200b.jpg
 

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