Boulton Paul P. 9

The Boulton and Paul P. 9 was a civilian utility plane with two seats. It was a development of the earlier P. 6 being larger and with an increased range. Both aircraft used components and experience which Boulton and Paul had gained from building Sopwith Camels.

Image [1]

Information
Manufacturer:	Boulton and Paul Limited
First flight:	1919
Propulsion:	RAF 1a V8 piston-engine
Withdrawn:	1930s
Number built:	8

To keep costs down it was fitted with a low power engine though had a reasonable performance with a cruise speed of over 130km/h and a range near five hundred kilometres. Despite the relatively lost cost of the P. 9 it could not compete with the glut of war surplus aircraft on the market and only eight were built.

Half of them went to Australia, one aircraft being used on newspaper and mail delivery flights between Hobart and Melbourne [2]. Others saw some use in air races popular in Britain in the early post-war years.

[1] "The Circuit of Britain", Flight Magazine Sept 7 1922 p. 513
[2] "Boulton Paul P.9", Illustrated Encyclopaedia of Aircraft (Orbis Publishing, 1985), p. 834