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Pemberton-Billing P.B.23 / P.B.25 Push-Prodge

Страна: Великобритания

Год: 1915

Fighter

Pemberton-Billing - P.B.11 - 1915 - Великобритания<– –>Pemberton-Billing - P.B.29 / P.B.31 Nighthawk - 1916 - Великобритания


O.Thetford British Naval Aircraft since 1912 (Putnam)


PEMBERTON-BILLING P.B.25

  Twenty P.B.25 single-seat scouts entered service with the RNAS at Eastchurch and Hendon during 1916. They had the serial numbers 9001 to 9020 and 9002 is illustrated. The P.B.25 was developed from the P.B.23 'Push-Proj' of 1915 and was armed with a single Lewis gun firing forward. One 100 hp Gnome or 110 hp Clerget engine. Maximum speed, 99 mph. Endurance, 3 hr. Span, 33 ft. Length, 24 ft 1 in.


H.King Armament of British Aircraft (Putnam)


Pemberton-Billing

P.B.23E and P.B.25. The P.B.23E pusher 'scout' of 1915 carried a fixed Lewis gun in the nose of the nacelle and was almost certainly the first British aircraft to be armed with a fixed gun. The gun on the P.B.23E was set low in the nacelle; in the succeeding P.B.25 it was raised to the top.


Jane's All The World Aircraft 1919


SUPERMARINE PUSHER SCOUT, 1916.
(Commonly called the "Push-Prodge")
  
  Re-designed from original, and fitted with 100 h.p. monosoupape engine; 3 1/2 hours' fuel capacity; Lewis gun and ammunition.
  
  
Speed 98 m.p.h.
Climb:
  6,000 ft. 8 1/2 mins.,
  15,300 40 1/2 mins.


W.Green, G.Swanborough The Complete Book of Fighters


PEMBERTON-BILLING P.B.23E UK

  Designed in 1915 by Noel Pemberton-Billing, and built by the company bearing his name, the P.B.23E single-seat pusher fighting scout biplane was of wooden construction, but the nacelle mounted between the wings and accommodating the pilot was unusual for its time in being covered with light alloy sheet metal. Armament consisted of a single 0.303-in (7,7-mm) machine gun mounted in the nose of the nacelle and power was provided by an 80 hp Le Rhone rotary. The P.B.23E was first flown in September 1915, but was not adopted in its original form, being further developed as the P.B.25. No data relating to the P.B.23 appear to have survived.


PEMBERTON-BILLING P.B.25 SCOUT UK

  Known officially as the Scout, the P.B.25 was a development of the P.B.23. The most obvious differences were in the design of the nacelle, which was fabric covered, and in the wing cellule, the mainplanes featuring 11 deg of sweepback and inversely-tapered ailerons. Twenty P.B.25s were ordered by the Admiralty, all but one of these being powered by the 100 hp Gnome Monosoupape, the exception having a 110 hp Clerget rotary. Armament comprised a single 0.303-in (7,7-mm) machine gun mounted on the nacelle. The last P.B.25 was delivered to the RNAS in February 1917, by which time this type had acquired an unenviable reputation, the take-off and landing characteristics being particularly hazardous. Apart from poor flying qualities, its performance was inadequate and, being viewed as something of an anachronism, the Scout was quickly discarded.

Max speed, 89 mph (143 km/h) at sea level.
Time to 6,000 ft (1 830 m), 11 min.
Endurance, 2.5 hrs.
Empty weight, 1,080 lb (490 kg).
Loaded weight, 1,541 lb (699 kg).
Span, 32 ft 11 1/2 in (10,04 m).
Length, 24 ft 1 in (7,34 m).
Height, 10 ft 5 in (3,17 m).
Wing area, 277 sq ft (25,73 m2).

Jane's All The World Aircraft 1919 /Jane's/
Side View of the "P.B. Push-prodge", a small fast biplane, built by the Supermarine Co. to the designs of Flight-Lieut. Pemberton-Billing, R.N. The machine was, with a 100 h.p. Mono-Gnome, the fastest biplane of its day, and was regarded as a "pushed projectile", hence its nick-name.
Pemberton Billing PB 23E, with its original tail unit and powered by an 80hp Le Rhone engine. It was nicknamed the "Sparklet" as its nacelle resembled a Sparklet bulb.
W.Green, G.Swanborough - The Complete Book of Fighters
The P.B.23E was unusual for its time in having a light alloy sheet-covered fuselage nacelle.
W.Green, G.Swanborough - The Complete Book of Fighters
The P.B.25 was ordered for the RNAS, but proved to be unsuited for operational use.
W.Green, G.Swanborough - The Complete Book of Fighters
The P.B.25 was ordered for the RNAS, but proved to be unsuited for operational use.