Boulton Paul P.9
{{Use dmy dates|date=September 2019}}
{{Use British English|date=December 2016}}
| {{Infobox aircraft begin
|name = P.9 |image = Jack De Garis promoting "Sun-Raysed", which later became "Sunraysia".jpg }}{{Infobox aircraft type |type = Light utility aircraft |manufacturer = Boulton & Paul Ltd |designer = |first flight = May 1919 |introduced = |retired = |produced = |number built = 8 |status = retired |developed from = Boulton & Paul P.6 }} |
The Boulton & Paul P.9 was a British single-engined two-seat biplane aircraft built by Boulton & Paul Ltd.
Design and development
The P.9 was an enlarged development of the P.6 single-engined biplane, with a {{cvt|6|ft}} longer fuselage and a {{cvt|2|ft|6|in}} increase in span. It used the same {{cvt|90|hp}} RAF 1 V-8 engine as the P.6 but with an increased fuel capacity. The wings and fuselage were constructed of wood with fabric covering.
The first order was from A.L. Long for use on a sheep station in Australia and the first aircraft was delivered to Australia where it was used on newspaper delivery flights. On 17 December 1919, it made the first flight across the Bass Strait between Tasmania and the mainland. Minor changes were then made to production aircraft, including a compartment behind the cockpit to carry two specially-built suitcases. Although the aircraft was offered at £700, with an old but still commonly available engine, it failed to compete with war-surplus military aircraft and only eight aircraft were built, including five that went to Australia.
Specifications
{{Aircraft specs
|ref=British Civil Aircraft since 1919 Jackson 1974, p. 224.
|prime units?=imp
|crew=1
|capacity=1 passenger
|length ft=24|length in=8
|span ft=27|span in=6
|height ft=10|height in=0
|height note=Flight 21 September 1922, p. 544.
|wing area sqft=323
|empty weight lb=1244
|gross weight lb=1770
|eng1 number=1|eng1 name=R.A.F. 1A|eng1 type=air-cooled V-8 engine|eng1 hp=90
|prop blade number=
|prop name=|prop dia ft=|prop dia in=
|max speed mph=104
|cruise speed mph=85
|range miles=300
|ceiling ft=14000
|climb rate ftmin=650
}}
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References
{{commons category|Boulton Paul P.9}}
;Notes
{{reflist}}
;Bibliography
{{refbegin}}
- {{cite journal |title=The Boulton And Paul P.9 Biplane |journal=Flight |issue=21 September 1921 |pages=541–544 |url= http://www.flightglobal.com/pdfarchive/view/1922/1922%20-%200541.html}}
- {{cite book |title=British Civil Aircraft since 1973 |last= Jackson|first=A.J. |year=1974 |publisher=Putnam |location=London |isbn= 0-370-10006-9 }}
- {{cite web |url=http://www.britishaircraft.co.uk/aircraftpage.php?ID=618 |title=Boulton & Paul P.9 |work=British Aircraft Directory |accessdate=1 July 2017 |url-status=bot: unknown |archiveurl=https://web.archive.org/web/20070210194032/http://www.britishaircraft.co.uk/aircraftpage.php?ID=618 |archivedate=10 February 2007 }}
{{refend}}
{{Boulton Paul aircraft}}
Category:1910s British civil utility aircraft