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Author Topic: Lioré et Olivier (LeO) Projects  (Read 13643 times)

Offline hesham

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Re: Lioré et Olivier (LeO) Projects
« Reply #30 on: August 16, 2016, 10:59:20 am »
Hi,

as I heard,the SNCASE SE-012 was a stratosphere Airplane Project,developed from
LeO-457,has anyone a drawing to it ?.

Offline Apophenia

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Re: Lioré et Olivier (LeO) Projects
« Reply #31 on: August 16, 2016, 07:32:36 pm »
as I heard,the SNCASE SE-012 was a stratosphere Airplane Project,developed from LeO-457,has anyone a drawing to it ?.

The unbuilt LeO 457 was, itself, to have been a high-altitude version of the LeO 451 powered by 1,300 hp Gnome-Rhône 14 N-48/49 radials. I doubt that SNCASE would have been interested in resurrecting the LeO 457 ... it would compete with their SE-1010.

Besides, wasn't the SE.100, the enlarged LeO 50 concept, SNCASE's first designation?

Offline hesham

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Re: Lioré et Olivier (LeO) Projects
« Reply #32 on: August 17, 2016, 11:22:41 am »
Yes my dear Apophenia,

but SNCASE SE-012 was a real Project,developed from LeO-457.

Offline Arjen

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Re: Lioré et Olivier (LeO) Projects
« Reply #33 on: August 17, 2016, 12:41:40 pm »
Yes my dear Apophenia,

but SNCASE SE-012 was a real Project,developed from LeO-457.
That's not what the text says. It speaks of a pressurized cell similar to the one planned for the LeO 457, a circular section fuselage for the SE-012 quite unlike the 457's oval section fuselage, differently shaped vertical surfaces as well as a different side profile. A similarly shaped wing is mentioned.

Offline hesham

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Re: Lioré et Olivier (LeO) Projects
« Reply #34 on: August 18, 2016, 04:06:08 am »
OK my dear Arjen.

Offline hesham

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Re: Lioré et Olivier (LeO) projects
« Reply #35 on: March 13, 2017, 06:41:43 am »
From l'Aeronautique 1934,

here is a drawings to unknown LeO flying boat project,appeared in three configurations;
flying boat,amphibian and landplane,I think it proceeded the H-440.

By the way,

this Project was called LeO Za.

Offline hesham

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Re: Lioré et Olivier (LeO) Projects
« Reply #36 on: May 25, 2017, 06:25:21 am »
From Le Fana 334,

the LeO-48 and early concept for it.

Offline blackkite

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Re: Lioré et Olivier (LeO) Projects
« Reply #37 on: November 17, 2017, 02:37:27 am »
Hi! I think this picture shows LeO 45-01 prototype (Mod) base on some left wing device.
What is this device?

https://en.wikipedia.org/wiki/Lior%C3%A9_et_Olivier_LeO_45
"On 16 January 1937, the LeO 45-01 prototype, powered by a pair of Hispano-Suiza 14AA-6 / Hispano-Suiza 14AA-7 radial engines producing 1,120 hp (835 kW) each, flew for the first time. Despite problems experienced with longitudinal instability, engine reliability and overheating, the aircraft demonstrated excellent overall performance. During flight testing, the prototype was capable of reaching 480 km/h (260 knots, 300 mph) at 4000 m and of attaining 624 km/h (337 knots, 388 mph) in a shallow dive.

In September 1937, the prototype was delivered to the Centre d'Essais de Matériels Aériens at Vélizy-Villacoublay for the type's official evaluation. On 6 December 1937, it was involved in a forced landing incident as a result of both engines having failed simultaneously in mid-flight; the pilot, Jea Doumerc, was able to land without sustaining any damage. The prototype was promptly returned to the manufacturer for adjustments prior to the resumption of evaluation flights. In July 1938, the prototype, fitted with the new Mercier-designed cowlings, attained 500 km/h (270 knots, 311 mph). The earlier instability issues were partially addressed via the adoption of redesigned twin fins and rudders on the tail unit.

Various issues with the troublesome Hispano-Suiza engines had been experienced and this resulted in several changes being made to the prototype, such as the adoption of broader, more efficient air intakes for the oil coolers, which in turn reduced instances of engine overheating. On 29 August 1938, it was decided to replace the existing Hispano-Suiza engines by Gnome-Rhone 14N 20/21 engines, which were capable of producing 1,030 hp (768 kW) each; as a result of these changes, the aircraft was re-designated as LeO 451-01. Following the completion of the re-engining, the flight test programme was resumed, running from 21 October 1938 to February 1939. In spite of the new engines being slightly less powerful, the speed and general performance of the prototype remained relatively unchanged.
« Last Edit: November 17, 2017, 03:16:08 am by blackkite »

Offline blackkite

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Re: Lioré et Olivier (LeO) Projects
« Reply #38 on: November 17, 2017, 02:52:22 am »
I think these pictures shows LeO 45-01 prototype.
Shape of front wind shield for pilot is apparently different from LeO 45 -01(Mod) prototype.
But propeller spinner shape is different between two pictures. ???

French wings 4 LeO-45
http://www.britmodeller.com/forums/index.php?/topic/234988484-french-wings-4-lior%C3%A9-et-olivier-leo-45-frrom/
« Last Edit: November 17, 2017, 04:46:40 am by blackkite »

Offline blackkite

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Re: Lioré et Olivier (LeO) Projects
« Reply #39 on: November 17, 2017, 03:23:18 am »
LeO 45.01 First prototype, powered by two Hispano-Suiza 14AA-6 / Hispano-Suiza 14AA-7 radial piston engines.
LeO 451.01 The first LeO 45.01 prototype was redesignated, fitted with two Gnome-Rhone 14R engines.
LeO 451 Production version variously fitted with Gnome-Rhône 14N-48 / Gnome-Rhône 14N-49 or Gnome-Rhône 14N-38 / Gnome-Rhône 14N-39 or Gnome & Rhône 14N-46 / Gnome-Rhône 14N-47 engines
LeO 451C Twelve LeO 451T aircraft were redesignated, used as mail transport aircraft for Air France.
LeO 451E Post-war flying laboratory, 11 modified.
LeO 451T German-captured bombers modified for freight duty, seating for up to 17 troops. Around about 50 aircraft were modified.
LeO 453 Post-war conversion to high-speed transports and search-and-rescue aircraft, powered by two 895 kW (1,200 hp) Pratt & Whitney R-1830-67 engines, seating for 6 passengers, range 3,500 km (1,890 nm, 2,175 mi) at 400 km/h (215 knots, 250 mph) cruising speed, 40 modified.
LeO 454 Bristol Hercules II engines, one prototype left unfinished.
LeO 455 High-altitude version with turbo-supercharged Gnome-Rhône 14R engines producing 1,375 hp (1025 kW) each, 400 ordered, one prototype built. The aircraft flew on 12 March 1939 but was later destroyed on the ground.
LeO 455Ph Post-war photo-reconnaissance variant, powered by two 1,600 hp (1195 kW) SNECMA 14R engines. Five LeO 451s were modified and were used by the Institut Géographique National.
LeO 456 (LeO 451M) Naval version for the French Navy, 68 ordered. Also known as the LeO 451M.
LeO 458 Wright GR-2600-A5B engines, ten ordered

http://redtarget.pagesperso-orange.fr/Leo45.htm
« Last Edit: November 17, 2017, 05:07:54 am by blackkite »

Offline blackkite

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Re: Lioré et Olivier (LeO) Projects
« Reply #40 on: November 17, 2017, 03:43:57 am »
Leo 451 No 359 of Escadrille 6B experimentally modified for use in the mine-sweeping role with dural frame energised by an auxiliary motor. Additional bracing struts were introduced subsequent, and these are illustrated by the general arrangement drawing.

http://aviadejavu.ru/Site/Arts/Art7887.htm

http://aeronavale-porteavions.com/viewtopic.php?f=5&t=2082
« Last Edit: November 17, 2017, 05:01:05 am by blackkite »

Offline Justo Miranda

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Re: Lioré et Olivier (LeO) Projects
« Reply #41 on: November 17, 2017, 06:57:30 am »
Hi

Offline blackkite

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Re: Lioré et Olivier (LeO) Projects
« Reply #42 on: November 17, 2017, 04:19:00 pm »
Thanks a lot. Very impresssive aircraft.

I think that top drawing shows LeO 45-01(mod), not LeO 451-01, because the engine is not Gnome-Rhone 14N 20/21.
LeO 45-01(mod) engine is ispano-Suiza 14AA-6 / Hispano-Suiza 14AA-7.

https://www.secretprojects.co.uk/forum/index.php?action=dlattach;topic=9017.0;attach=591113;image
« Last Edit: November 17, 2017, 05:12:01 pm by blackkite »

Offline blackkite

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Re: Lioré et Olivier (LeO) Projects
« Reply #43 on: December 01, 2017, 05:13:44 am »
Hi! LeO 48.

http://www.airwar.ru/enc/xplane/leo48.html

"The LeO-48 experimental aircraft established during the German occupation years was intended for research in aerodynamics. It was a wooden monoplane with a sredneraspolozhennym wing. The crew consisted of four persons. The first flight of LeO-48 was carried out on 21 November 1941 under the control of tester Jacques Lekarma, but during the test he was injured and was taken to repair for two months. The second and last flight took place on 5 February 1942, after which the LeO-48 test programme was decided to close and the plane was to be scrapped."
« Last Edit: December 01, 2017, 05:16:31 am by blackkite »

Offline hesham

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Re: Lioré et Olivier (LeO) Projects
« Reply #44 on: July 10, 2018, 05:08:14 am »
Hi,

as I heard,the SNCASE SE-012 was a stratosphere Airplane Project,developed from
LeO-457,has anyone a drawing to it ?.

As we know also the SE-014 was a flying boat Project,also in this series,the SE-010 was the same as
SE-400.