Pemberton-Billing P.B.25

infobox Aircraft
name = P.B.25
type = Single-seat Scout
manufacturer = Pemberton-Billing Limited


caption =
designer =
first flight = 1915
introduced =
retired =
produced =
number built = 20
status =
unit cost =
primary user = Royal Naval Air Service
more users =
developed from =
variants with their own articles = The Pemberton-Billing P.B.25 was a First World War British single-seat scout aircraft built by Pemberton-Billing Limited, later Supermarine Aviation Works Limited.

Design and development

The P.B.23 was designed in 1915 as a single-seat biplane scout. The fuselage nacelle was strut-mounted between the wings. The nacelle had an open cockpit for the pilot at the front and at the rear a 80 hp (60 kW) Le Rhone engine driving a pusher propeller. Twin fins and rudders were mounted on a wide-span tailplane, with an elevator attached, and all connected to the wings structure with four tailbooms, The P.B.23 failed to gain an order after it first flew in September 1915. Twenty of an improved version, the P.B.25, were ordered by the Royal Naval Air Service. The P.B.25 had swept-back wings, a modified landing gear and a revised fuselage nacelle. Although originally powered by a 110 hp (82 kW) Clerget rotary engine, the 20 RNAS aircraft were fitted with Gnome Monosoupape rotary piston engines.

Operational history

The aircraft, which were not used operationally, were based at RNAS Stations at Hornchurch and Hendon; they were probably used in the training role.

Operators

;UK
* Royal Naval Air Service

Specifications

aircraft specification

plane or copter?=plane
jet or prop?=prop
crew=
length main= 24 ft 1 in
length alt= 7.34 m
span main= 33 ft 0 in
span alt= 10.06 m
height main= 10 ft 5 in
height alt= 3.17 m
area main= 277 ft²
area alt= 25.73 m²
empty weight main= 1,080 lb
empty weight alt= 490 kg
loaded weight main=
loaded weight alt=
max takeoff weight main= 1,576 lb
max takeoff weight alt= 715 kg
engine (prop)=Gnome Monosoupape
type of prop=radial piston
number of props=1
power main= 100 hp
power alt=75 kW
max speed main=99 mph
max speed alt=159 km/h
range main=
range alt=
ceiling main=
ceiling alt=
climb rate main=
climb rate alt=
loading main=
loading alt=
power/mass main=
power/mass alt=
armament=
*1× Forward Firing 0.303 in (7.7 mm) Lewis machine gun

References

*cite book |last= |first= |authorlink= |coauthors= |title= The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985)|year= |publisher= Orbis Publishing|location= |issn=

External links

* [http://www.britishaircraft.co.uk/aircraftpage.php?ID=207 British Aircraft Directory]

ee also

aircontent

related=

similar aircraft=

sequence=

lists=
*List of aircraft of the Royal Naval Air Service

see also=