| In August 1938, Caudron-Renault submitted to the Service
Technique de l'Aeronautique project studies for
three new lightweight fighters to meet the requirements
of a specification for such a warplane framed in
May 1937, these being the CR 760, CR 770 and CR 780.
The first of these, design development of which had
been initiated by Marcel Riffard during 1937 as the
C 715, had originally been intended to have a new 16-
cylinder air-cooled engine then under development by
Renault. As there was prospect of obtaining earlier deliveries
of an air-cooled inline engine of comparable
power from Isotta-Fraschini, it was decided to substitute
this for the Renault engine in the CR 760, utilising
the latter power plant in a further development, the
CR 770. The CR 760 had a dural-covered welded steeltube
fuselage and a two-spar wooden wing with
stressed plywood skinning, the entire airframe being
divided into pre-assembled elements which could be
sub-contracted to non-specialised manufacturers. The
12-cylinder inverted-Vee Isotta-Fraschini Delta R.C.40
engine offered 730hp at 4000m and armament
comprised six 7.5mm MAC 1934 M 39 machine guns in underwing trays. The prototype CR 760 flew for
the first time at the beginning of May 1940, but was destroyed
at Orleans-Bricy on 11 June 1940 to prevent it falling
into German hands.
| A three-view drawing (1280 x 952) |
WEIGHTS |
Take-off weight | 2000 kg | 4409 lb |
Empty weight | 1548 kg | 3413 lb |
DIMENSIONS |
Wingspan | 8.97 m | 29 ft 5 in |
Length | 8.89 m | 29 ft 2 in |
Height | 2.90 m | 10 ft 6 in |
Wing area | 12.50 m2 | 134.55 sq ft |
PERFORMANCE |
Max. speed | 555 km/h | 345 mph |
Range | 1200 km | 746 miles |
David Rosenboom, e-mail, 22.01.2014 04:04 It is a pity that inverted air cooled straight four, six and v12 aeroengines aren't produced in large numbers anymore reply | David Rosenboom, e-mail, 22.01.2014 04:04 It is a pity that inverted air cooled straight four, six and v12 aeroengines aren't produced in large numbers anymore reply |
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