H.King Armament of British Aircraft (Putnam)
P.V.1. This was an experimental seaplane of 1916, having a Sopwith Baby fuselage and high-lift wings with a view to improving take-off with two 65-lb bombs.
P.V.2 and P.V.2bis. In 1916 the Davis recoilless gun was still viewed hopefully as an anti-Zeppelin weapon, and the P.V.2 single-seat seaplane was designed to carry a 2-pounder gun of the type. It was to be fitted over the top wing and be accessible for loading (ten rounds provided). Before the airframe was completed, the Davis gun was abandoned, and with two Lewis guns above the raised top wing the aircraft was designated P.V.2bis.
W.Green, G.Swanborough The Complete Book of Fighters
PORT VICTORIA P.V.2. UK
The Royal Naval Aeroplane Repair Depot was commissioned at the Isle of Grain early in 1915, and to distinguish it from the seaplane station already established there it was named Port Victoria. Ultimately it became known as the Marine Experimental Aircraft Depot and undertook original design work. Its first entirely original design was the P.V.2 single-seat anti-Zeppelin seaplane. Of wooden construction and powered by a 100 hp Gnome Monosoupape rotary, the P.V.2 was an exceptionally clean sesquiplane, the wing cellule being almost devoid of bracing wires with the upper wing attached to the upper fuselage longerons and the lower wing passing beneath the fuselage. The intended armament was a two-pounder Davis gun, although this was never fitted. The P.V.2 was first flown in June 1916 with floats of the pontoon type, these later being replaced by Linton Hope floats. Trials showed considerable promise and it was decided to develop the design further as the P.V.2bis (which see).
Max speed, 95 mph (153 km/h) at sea level.
Time to 3,0 ft (915 m), 5.0 min.
Empty weight, 1,087 lb (493 kg).
Loaded weight, 1,590 lb (721 kg).
Span, 27 ft 0 in (8,23 m).
Length, 22 ft 0 in (6,70 m).
Height, 8 ft 4 in (2,54 m).
Wing area, 168 sqft (15,60 m2).
PORT VICTORIA P.V.2bis UK
The decision to develop the P.V.2 as the P.V.2bis single-seat fighter seaplane resulted in major changes to the original prototype, the most significant being the raising of the upper wing by 1 ft (30 cm) to improve the pilot’s view for alighting and the insertion of centre-section struts. The span and area of the upper wing were increased by introduction of a 2-ft (61-cm) centre section, and the planned armament was two 0.303-in (7,7-mm) machine guns to fire forward and upward above the propeller, although, in the event, only one such gun was apparently fitted. The P.V.2bis was flown early in 1917, providing data for later Port Victoria types.
Max speed, 93 mph (150 km/h) at sea level.
Time to 3,000 ft (915 m), 6.0 min.
Empty weight, 1,211 lb (549 kg).
Loaded weight, 1,702 lb (772 kg).
Span, 29ft 0 in (8,84 m).
Length, 22 ft 0 in (6,70 m).
Height, 9 ft 4 in (2,84 m).
Wing area, 180 sq ft (16,72 m2).