SNCAC (Hanriot) NC-510 Army co-operation aircraft prototypes

[Caravellarella]

Dear Boys and Girls, here is an article in French about the SNCAC (Hanriot) NC-510 3 seat army co-operation prototype of 1938. The "Triplace de Travail" or "T3" which was designed to cover a range of other duties including observation, tactical reconnaissance and light bombing. The two NC-510 prototypes proved unsatisfactory and a new programme for a revised NC-530 was started by the former Hanriot design team at SNCAC.....

The article comes from the 15th January 1969 issue of Aviation Magazine International......

Terry (Caravellarella)

 

[Caravellarella]

Dear Boys and Girls, there is a much more comprehensive article in French about the SNCAC (Hanriot) NC-510 prototypes (both of which differed considerably) and the other 3 seat army co-operation "Triplace de Travail" prototypes (Dewoitine D.720, Potez 566 & Potez 220) in the April 1999 issue No. 353 of Le Fana de l'Aviation. I believe a second article appeared in the next issue......

Terry (Caravellarella)

 

[Tophe]

In the Trait d'Union #214 (Mar-Apr 2004) is a lot about the Hanriot H-240 (A19 requirement of 1936, NC-510) family: comparative 3-view of both prototypes, photograph of the 1st, 3-view and photograph of the derivative NC-530 prototype, mention of the project derivatives NC-511 (engines Renault 12 R0/1 of 450hp), NC-512 (Lorraine Algol of 450hp), NC-513 (14M 4/5 engines), NC-520 (project that will be turned into NC-530), NC-531 (530 with retractable landing gears and Renault 12 R0/1 engines of 450hp) and NC-532 (the same with Gnôme-Rhône 14N 48/49 of 1,180hp).

 

[Maveric]

In the Trait d'Union #214 (Mar-Apr 2004) is a lot about the Hanriot H-240 (A19 requirement of 1936, NC-510) family: comparative 3-view of both prototypes, photograph of the 1st, 3-view and photograph of the derivative NC-530 prototype, mention of the project derivatives NC-511 (engines Renault 12 R0/1 of 450hp), NC-512 (Lorraine Algol of 450hp), NC-513 (14M 4/5 engines), NC-520 (project that will be turned into NC-530), NC-531 (530 with retractable landing gears and Renault 12 R0/1 engines of 450hp) and NC-532 (the same with Gnôme-Rhône 14N 48/49 of 1,180hp).

Can you post the info´s about the H.240?


Thanks

 

[Tophe]

From the same magazine: "In answer to the A19 requirement, the Hanriot company proposed the H-240, with two engines Algol Lo 9 Na of 450hp, driving two-blade propellers with fix angle. It was a high wing airplane, having a fixed landing gear with spats. It was classified as "disposable machine", with wood and metal building and fabric cover. A prototype was ordered on August 23rd 1937. A few days later, the company proposed another project, more suited to the requirement, named NC-510 (with engines of either 450hp, or 670hp, or 750hp) and 3 prototypes of this one were ordered on August 28th 1937."

 

[Maveric]

no pic or drawing? :'(

 

[Arjen]

You asked for it, you got it.
From 'Warplanes of the Second World War: Bombers and Reconnaissance Aircraft, Volume Eight' by William Green, Macdonald 1967.

 

[Maveric]

So you will say: the Hanriot H-240 is the same like NC-510???

 

[Arjen]

the Hanriot H-240 is the same like NC-510?

I might be wrong, but yes, that's what I understand Tophe is saying.
Tophe:

...Hanriot H-240 (A19 requirement of 1936, NC-510) family...

 

[Tophe]

So you will say: the Hanriot H-240 is the same like NC-510???

Uh, not exactly: the H-240 project is the father of the NC-510 project:
- the H-240 has fixed landing gear (maybe like the NC-530) not retractable like the NC-510
- the H-240 has 450hp engines, the NC-510 may have three different engines but mostly 750hp
In the spring of 1938, it was decided to replace the 510's low observer bay by a glazed nose (not built this way on the 510 three prototypes, installed on the 530).
The final competitor of the NC-510 was the SNCAM D-700.

 

[Archibald]

Le Fana de l'aviation April 1999 - 353 had some assassine article on the T-3 program. A big waste, according to them. They were not very keen of Hanriot...

 

[Arjen]

Uh, not exactly: the H-240 project is the father of the NC-510 project:

Thanks for clearing that up.

 

[Maveric]

We have a chance to see a drawing of the H.240... :

 

[burunduk]

- the H-240 has fixed landing gear (maybe like the NC-530) not retractable like the NC-510

But NC-510 had fixed gears :-\

 

[Tophe]

Source: Trait d'Union magazine March-April 2004
At least one of the built NC-510 had retractable landing gears

 

[Tophe]

Source: Trait d'Union magazine March-April 2004

Even in this magazine Nr214, there are discrepant sayings: the NC-510 description reads "the fix landing gear had 4 meters between wheels" while the 2 three-views and the photograph show a retractable landing gear. It seems the preliminary project or final project had fix landing gear while the built prototypes had retractable landing gear.
EDIT: the page has changed, I posted a photograph on page 1.