Liore et Olivier

[hesham]

From Czech National Technic Museum,

LeO H-28 was a seaplane Project
LeO 32 C.1 was a single seat fighter Project

Wrong: the LeO 32 was a 54-seat transport aircraft project (1929).

Of course I believe you,but in Czech museum,may they was meant LeO-33
and NOT LeO-32 ?!.

Also please I want to ask about LeO 32 transport project,and if it was intended
for military or just for civil ?,again for LeO H-245,and if it was designed as a
military aircraft or not ?,you know I seek about military aircraft.

 

[PhR]

Of course I believe you,but in Czech museum,may they was meant LeO-33
and NOT LeO-32 ?!.

Also please I want to ask about LeO 32 transport project,and if it was intended
for military or just for civil ?,again for LeO H-245,and if it was designed as a
military aircraft or not ?,you know I seek about military aircraft.

Both LeO 32 and H-245 were civil projects.

What is this Czech museum information?

 

[hesham]

Both LeO 32 and H-245 were civil projects.

What is this Czech museum information?

Please see reply # 19.

 

[hesham]

My dear Philippe,

do you have more projects for this company ?,specially LeO 34 and LeO H-34 !.

 

[Arjen]

Please see reply # 19.

Are you referring to Czech National Technical Museum?
I can not retrieve the information from what I guess is a screen capture. How did you find it? Copy of image from #19 inserted:

This does not provide any information about the nature of the aircraft possibly tied to these designations.

 

[hesham]

This does not provide any information about the nature of the aircraft possibly tied to these designations.

Are you sure ?!,it's; LeO 32C1 ,very clear.

 

[PhR]

Are you sure ?!,it's; LeO 32C1 ,very clear.

But it's clearly an error.

 

[Arjen]

@hesham A designation is listed, but nothing about characteristics or status of the connected design.
The museum's website may have changed since you retrieved the list, but I can't retrieve the same information. How did you find it? Are we talking about the same museum?

We provide sources for others to verify, check the context of information offered.
With the information about the museum offered in #19, I can't verify or context-check the data offered.

´My personal best at pole-vaulting is 8m50, prove me wrong'

 

[hesham]

But it's clearly an error.

Yes,the caption appeared it was a single seat fighter,but of course and as I said,
it could be LeO-33 and not LeO-32.

 

[PhR]

Yes,the caption appeared it was a single seat fighter,but of course and as I said,
it could be LeO-33 and not LeO-32.

In fact, it could be almost anything, but LeO 32: https://www.secretprojects.co.uk/th...o-prototypes-projects.9017/page-2#post-729667
I had the chance to be invited for years to regular lunchs organized by the association of LeO survivors (called "Mohicans"). I had access to number of testimonies and private archives about LeO projects and prodution. I visited each of them many times and they shared with me their documents and memories. None of them told me about any C1 project. The last one was the LeO 9, in 1921.

 

[PhR]

Are you sure ?!,it's; LeO 32C1 ,very clear.

As you can see, there are some other obvious errors in this list. For example, le 'Le612Bn2" is clearly the LeO 12, LeO H20, H21 and 46 are non-senses, Meteor is from SPCA, etc.

 

[PhR]

LeO-34 was unknown landplane Project of 1932
LeO H-34 was unknown seaplane Project of 1932

I don't know which project was behind the number 34, but it cannot be both LeO 34 and LeO H34. If it was assigned to the landplane design office directed by Paul Asantcheeff, then it was a LeO 34. If it was assigned to seaplane design office directed by Edmond Benoit, then it was a LeO H34. One or the other, but not both.

 

[PhR]

LeO-453E or E-10 was an experimental version,also powered by the same engines

Why do you list the exprimental LeO 453-E10 (I suppose you want to speak about the E10-1 and E10-2) and not the LeO 451-E1, E2, E3, E4, E5, E6, E7, E8-1, E8-2, E9-1 and E9-2?

 

[PhR]

Autogyro series;

LeO C.30 was a license built Cierva C.30 autogyro,powered by one 175 hp
Salmson 9 Ne engine
LeO C.30S was a construction number 26 was completed as the sole C-30S
LeO C.301 was an improved C-30s with uprated Messier oleo-pneumatic
shock absorbers, flotation devices to facilitate ditching at sea and tripod
main rotor support
LeO C.302 was an early autogyros suffered from relatively long take-off
runs,to reduce the take-off length two C-301 aircraft were fitted with the equivalent of Cierva's "Jump" head allowing the aircraft to leap vertically
after only a very short run
LeO C.34 was a two-seat autogyro prototype,powered by one 350 hp Gnome
& Rhône 7-cylinder star engine
LeO C.41 was a four-seat autogyro Project,developed from C.34

Also missing:
LeO-Lepère CL.10 was the Cierva C27 built under license by LeO, powered by 1 Popjoy Catacaret 80 hp, 2 built (1932)
LeO-Lepère CL.11 was a modified CL.10 powered by 1 Renault 7B 100 hp, 1 built (1932)
LeO-Lepère CL.19 was a Cierva C19/4 built under license by LeO, powered by 1 Salmson 5AQ 95 hp, 1 built (1933)
LeO-Lepère CL.20 was a projected autogiro, license bought by LeO from Westland-built Cierva, powered by 1 Popjoy Niagara 3 90 hp

 

[hesham]

I don't know which project was behind the number 34, but it cannot be both LeO 34 and LeO H34. If it was assigned to the landplane design office directed by Paul Asantcheeff, then it was a LeO 34. If it was assigned to seaplane design office directed by Edmond Benoit, then it was a LeO H34. One or the other, but not both.

In Onera archive,they mentioned both of them,with a wrong description to
H-34 as Avion,but it must be Hydravion ?.

Why do you list the exprimental LeO 453-E10 (I suppose you want to speak about the E10-1 and E10-2) and not the LeO 451-E1, E2, E3, E4, E5, E6, E7, E8-1, E8-2, E9-1 and E9-2?

I know all of them,except E6,E8-2,E9-2 & E10-2,do you have and Infos ?.

Also missing:
LeO-Lepère CL.10 was the Cierva C27 built under license by LeO, powered by 1 Popjoy Catacaret 80 hp, 2 built (1932)
LeO-Lepère CL.11 was a modified CL.10 powered by 1 Renault 7B 100 hp, 1 built (1932)
LeO-Lepère CL.19 was a Cierva C19/4 built under license by LeO, powered by 1 Salmson 5AQ 95 hp, 1 built (1933)
LeO-Lepère CL.20 was a projected autogiro, license bought by LeO from Westland-built Cierva, powered by 1 Popjoy Niagara 3 90 hp

Of course I know this addition list,and also there was C.21

 

[PhR]

The name Apophyse is came from TU magazine.

I got the answer from Charles Claveau, author of this article in TU magazine. He took this name from Aviation Magazine article by Jean Liron (attached), entitled "L'apophyse" in reference to the name given to the bony crest located at the back of the vertebrae. But this is a confusion: it was just the title of the article, not the name of the aircraft.

 

[PhR]

Of course I know this addition list,and also there was C.21

I don't think so. LeO design office, located route de la Révolte in Argenteuil, directed by Pierre Renoux, started with Cierva C.30 license.
If it was part of Lepère activities in LeO installations, then it was a CL.xx, not a C.xx.
C.21 is not listed in Brooks book about Cierva autogyros.

 

[PhR]

I know all of them,except E6,E8-2,E9-2 & E10-2,do you have and Infos ?

Yes, of course:
LeO 451-E6 c/n 451: modified in 1947 for CEV general usage (F-ZVLH, F-ZIJP, F-AKHU and maybe F-BCDK). Became LeO 451-E8-2 F-BCAK for testing pulse-jet engines between 1947 and 1952.
LeO 453-E10-2 c/n 9: used for launching remote-controlled vehicles in 1950.

 

[hesham]

LeO-Lepère CL.19 was a Cierva C19/4 built under license by LeO, powered by 1 Salmson 5AQ 95 hp, 1 built (1933

As TU magazine,that's was called C.21 in the company.

Many thanks for LeO 450s "E" series.