Besson MB.411

The Besson MB.411 was a French two-seat spotter and observation floatplane, designed by Besson.cite book |last= Sharpe |first= Michael |title=Biplanes, Triplanes, an Seaplanes |year=2000 |publisher=Friedman/Fairfax Books |location=London |pages= 80|isbn=1-58663-300-7]

Development

In 1932, Besson created the MB.410 by changing the twin floats style of the MB.35 to a single main float and two outrigger floats. The engine was cowled and the fuselage was streamlined. The prototype was destroyed in a fatal accident during testing.

The French Navy required a spotter aircraft for its new submarine "Surcouf", and ordered a production version, designated "MB.411".

Operational history

The first MB.411 served from September 1935, until the sinking of the "Surcouf" off the West Indies in February 1942.

The second aircraft served the Aeronavale Escadrille 7-S-4 ar St Mandrier.

Variants

*MB.410 - original prototype.
*MB-411 - development version.

pecifications

aerospecs
ref=
met or eng?=met

crew=2
capacity=
length m=8.25
length ft=27
length in=
span m=12
span ft=39
span in=4
height m=2.85
height ft=9
height in=4
wing area sqm=22
wing area sqft=237
empty weight kg=760
empty weight lb=1,676
gross weight kg=1,140
gross weight lb=2,513

eng1 number=1
eng1 type=Salmson 9Nd radial piston
eng1 kw=130
eng1 hp=175
eng2 number=
eng2 type=
eng2 kw=
eng2 hp=

max speed kmh=190
max speed mph=118
cruise speed kmh=
cruise speed mph=
stall speed kmh=
stall speed mph=
range km=400
range miles=249
endurance h=
endurance min=
ceiling m=5,000
ceiling ft=16,405
climb rate ms=
climb rate ftmin=

armament1=
armament2=
armament3=
armament4=
armament5=
armament6= aircontent
see also=
related=
similar aircraft=
lists=

References