Beardmore W.B.V

Beardmore W.B.V

The Beardmore W.B.V was a prototype British single-engine shipborne biplane fighter of World War I developed by Beardmore. Taylor 1990, p.57. ] It was not successful, only two being completed.

Development and design

At the same time as developing the Beardmore W.B.IV, G Tilghman-Richards, the chief designer of Beardmore, designed a second aircraft to meet an Admiralty requirement for a ship-borne fighter aircraft to be armed with a 37 mm Le-Puteaux quick firing gun in order to destroy airships. Bruce 1965, p.74.] The resulting aircraft, the W.B.V, was a single seater two-bay tractor biplane powered by a 200 hp (149 kW) Hispano-Suiza engine. The wings folded for storage onboard ship. The manually loaded Le-Puteaux gun was mounted between the cylinder banks of the V-8 engine, firing through a hollow propeller shaft. Unlike the W.B.V, the W.B.IV was not fitted with a buoyancy chamber, being instead fitted with inflatable flotation bags. Mason 1992, pp.127-128.]

The first prototype flew on 3 December 1917. Bruce 1965, p.74.] During testing, the Le Puteaux gun was considered dangerous by RNAS pilots, and the aircraft was re-armed with a more conventional synchronised Vickers machine gun together with a Lewis gun mounted on a tripod mounting. Development was abandoned shortly after the completion of a second prototype.

pecifications (variant)

aerospecs
ref=Jane's Fighting Aircraft of World War I.
met or eng?=eng

crew=1
capacity=
length m=
length ft=26
length in=7
span m=
span ft=35
span in=10
height m=
height ft=11
height in=10
wing area sqm=36.6
wing area sqft=394
empty weight kg=845
empty weight lb=1,860
gross weight kg=1,136
gross weight lb=2,500

eng1 number=1
eng1 type=Hispano-Suiza 8
eng1 kw=149
eng1 hp=200
eng2 number=
eng2 type=
eng2 kw=
eng2 hp=

max speed kmh=180
max speed mph=112
max speed mach=
cruise speed kmh=
cruise speed mph=
stall speed kmh=
stall speed mph=<45
range km=
range miles=
endurance h=2
endurance min=30
ceiling m=4,270
ceiling ft=14,000 Mason 1992, p.128.]
climb rate ms=
climb rate ftmin=

armament1=One 37 mm Le Puteaux quick firing gun firing through the propellor shaft "or" One .303 in Vickers machine gun and one Lewis gun Bruce 1965, p.76.]
armament2=
armament3=
armament4=
armament5=
armament6=

ee also

aircontent
see also=
related=*Beardmore W.B.IV
similar aircraft=*SPAD S.XII
lists=

References

*cite book |title=War Planes of the First World War: Volume 1 Fighters |last= Bruce|first= J.M.|year= 1965|publisher=Macdonald |location=London |isbn= |pages= |url=
*
*cite book |last= Taylor |first= Michael J. H. (editor)|title=Jane's Fighting Aircraft of World War I |year=1990 |publisher=Studio Editions |location=London |pages= 57


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