H.King Armament of British Aircraft (Putnam)
B.N.I. A counterpart of the Sopwith Snipe, and resembling that type and other contemporary single-seaters in having provision for an over-wing Lewis gun as well as two Vickers guns with C .C gear, the B.N.I was designed in March 1918. The Lewis gun was actually fitted on this machine, being positioned somewhat to starboard, and the Vickers guns were semi-internally mounted, beneath a humped cowling. The makers advanced the claim that although the 'anti-airship'Lewis gun installation on the top wings of other lighters was disliked by many pilots, being too high above their heads 'to permit it to be directly sighted on a target in the best fighting attitudes', the gun on the B.N.I was 'practically in line with the pilot's eyes'.
W.Green, G.Swanborough The Complete Book of Fighters
NIEUPORT (& GENERAL) B.N.1 UK
The Nieuport & General Aircraft Company was established in November 1916 for the purpose of manufacturing Nieuport designs in the UK. When H P Folland joined the company following dispersal of the Royal Aircraft Factory design office, work began on an original single-seat fighter. Designated B.N.1 (the initials signifying ‘‘British Nieuport”), the new fighter was not related to any French Nieuport design and was an equi-span, two-bay, unstaggered biplane powered by a Bentley B.R.2 nine-cylinder rotary engine. Of fabric-covered wooden construction, the B.N.l carried an armament of two synchronised 0.303-in (7,7-mm) guns and a gun of similar calibre above the wing centre section. Three prototypes were ordered and the first of these was flown early in March 1918. After destruction of the prototype in a crash on the 10th of that month, development was discontinued and the remaining two prototypes were scrapped before completion.
Max speed, 127 mph (204 km/h) at 15,000 ft (4 570 m).
Time to 15,000 ft (4 570 m), 16 min.
Endurance, 3.0 hrs.
Loaded weight, 2,030 lb (921 kg).
Span, 28 ft 0 in (8,53m).
Length, 18 ft 6 in (5,64m).
Height, 9 ft 0 in (2,74 m).
Wing area, 260 sq ft (24,15 m2).