| Aware of some prejudice against the low-wing monoplane
configuration for single-seat fighters, Emile
Dewoitine evolved almost simultaneously with the
low-wing D 500 a fighter of shoulder-mounted gull
wing configuration. This employed the same HS 12Xbrs
engine of 660hp for take-off, the same fuselage and
essentially similar tail surfaces. Designated D 560, this
fighter flew for the first time on 5 October 1932, proving
to be somewhat slower at rated altitude than the
equivalent low-wing monoplane when flown at the Centre d'Essais at Villacoublay during the following
month. The ventral radiator bath was extended forward
in similar fashion to that of the D 500, and to
rectify a stability problem the vertical tail was enlarged.
The manoeuvrability of the D 560 proved outstanding,
but evaluation pilots participating in the 1930
C1 programme universally condemned the gulled wing
(which was also featured by other contenders - the
Loire 43, the Gourdou-Leseurre 482 and the Mureaux
170). As a consequence, the D 560 was rebuilt as a classic
parasol monoplane, the designation being changed
to D 570.
 | A three-view drawing (800 x 510) |
WEIGHTS |
Take-off weight | 1698 kg | 3743 lb |
Empty weight | 1270 kg | 2800 lb |
DIMENSIONS |
Wingspan | 12.47 m | 41 ft 11 in |
Length | 8.48 m | 28 ft 10 in |
Height | 3.42 m | 11 ft 3 in |
Wing area | 17.30 m2 | 186.22 sq ft |
PERFORMANCE |
Max. speed | 375 km/h | 233 mph |
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