| Dated in concept by comparison with other contenders
designed to meet the 1933 Marine Nationale requirement
for a single-seat float fighter, the R-90 proffered
by the Chantiers Aeronavale Etienne Romano was a
twin-float single-bay equi-span staggered biplane of
mixed construction, the fuselage being of welded steel-tube
and the wings of wood. Powered by a 720hp Hispano-
Suiza 9Vbrs nine-cylinder radial, the R-90 was
flown in August 1935, attaining a speed of 352km/h at 3500m. During the following
October, it was re-engined with a smaller-diameter 14-cylinder HS 14Hbrs two-row radial enclosed by a longchord
NACA cowling. At the same time, the volume of
the floats was increased and more substantial floatbracing
struts were provided. At the request of the
Services Techniques, the prototype was again reengined,
this time with a liquid-cooled 12-cylinder HS
12Ycrs-l rated at 900hp at 1900m. A 20mm
cannon was mounted between the cylinder banks, and,
in this form, the R-90 could exceed 400km/h
in level flight. It flew with the HS 12Y engine in October
1937, but in the previous March, the Marine Nationale
had selected the Loire 210 to meet its requirement, and
subsequent testing of the R-90 was related to the clandestine
development of a shore-based version specifically
for the Spanish Republican government.
| A three-view drawing (1278 x 934) |
WEIGHTS |
Take-off weight | 1990 kg | 4387 lb |
Empty weight | 1642 kg | 3620 lb |
DIMENSIONS |
Wingspan | 8.88 m | 29 ft 2 in |
Length | 8.67 m | 28 ft 5 in |
Height | 3.93 m | 13 ft 11 in |
Wing area | 21.00 m2 | 226.04 sq ft |
PERFORMANCE |
Max. speed | 368 km/h | 229 mph |
Range | 650 km | 404 miles |
guba, 21.06.2011 07:21 was related to the clandestine development of a shore-based version specifically for the Spanish Republican government. reply |
Do you have any comments?
|
| COMPANY PROFILE All the World's Rotorcraft
|