Handley Page Hamlet

{{Use dmy dates|date=June 2017}} {{Use British English|date=June 2017}} __NOTOC__ {{Infobox aircraft | name = HP.32 Hamlet | logo = | logo_size = | image = Handley Page Hamlet Flight magazine 1926-11-04.jpg | alt = | caption = | long_caption = | other_names = | aircraft_type = Cabin monoplane | aim = | outcome = | related = | national_origin = United Kingdom | manufacturer = Handley Page | design_group = | designer = | builder = | issuer = | status = | owners = | primary_user = | more_users = | service = | major_applications = | proposals = | prototypes = | number_built = 1 | construction_number = | civil_registration = | military_serial = | radio_code = | requirement = | aircraft_carried = | flights = | total_hours = | total_distance = | construction_date = | introduction = | retired = 1929 | first_flight = 19 October 1926 | initiated = | in_service = | last_flight = | expected = | developed_from = | variants = | developed_into = | preservation = | fate = | predecessors = | successors = | concluded = }} The '''Handley Page HP.32 Hamlet''' was a British six-passenger monoplane transport designed and built by Handley Page.<ref name="Jackson">Jackson 1973, p320-321</ref> Only one was built to order of the Air Ministry, first flown with three-engines, later changed to two then back to three engines.

==Development== In 1924, the British Air Ministry issued Specification 23/24 for a three-engined six/seven-passenger charter airliner.<ref name="Barnes p252">Barnes 1976, p.252.</ref> Handley Page's design to meet this requirement, the Hamlet, was a high-wing three-engined monoplane with a conventional landing gear and room for six passengers. The wing was fitted with leading edge slots and flaps to give good landing performance.<ref name="Barnes p254">Barnes 1976, p.254.</ref> The only Hamlet was built at Cricklewood in 1926, and registered ''G-EBNS''. It was first flown on 19 October 1926 powered by three 120 hp (90 kW) Bristol Lucifer IV three-cylinder radial engines.<ref name="Jackson" /> The Lucifer gave rise to excessive vibration, particularly in the centre engine, causing the pilot's instruments to be unreadable, and after a final flight with Lucifer engines on 25 October 1926, it was modified with a smaller fin and larger rudder and the engines were changed to two 250 hp (187 kW) Armstrong Siddeley Lynx radial engines, with the nose engine replaced by additional baggage space, first flying in this form on 19 May 1927.<ref name="Jackson" /><ref name="Barnes p255-7">Barnes 1976, pp.255-257.</ref> This modification eliminated the vibration, but the twin-engined variant was underpowered.<ref name="Barnes p257-8">Barnes 1976, pp.257-258.</ref> In March 1928 it was re-engined again with three 150 hp (112 kW) Armstrong Siddeley Mongoose five-cylinder radial engines although it flew only once in that configuration on delivery to the Royal Aircraft Establishment at Farnborough.<ref name="Jackson" /> The aircraft was scrapped in 1929.<ref name="Jackson" />

==Specifications (Lynx-powered)== thumb|Handley Page Hamlet 3-view drawing from NACA Aircraft Circular No.20 {{Aircraft specs |ref=<ref name="Jackson" /> |prime units? = imp |crew=two |capacity=six passengers |length m=10.62 |length ft=34 |length in=10 |span m=15.85 |span ft=52 |span in=0 |empty weight kg=1408 |empty weight lb=3105 |gross weight kg=2268 |gross weight lb=5000 |eng1 number=2 |eng1 name=Armstrong Siddeley Lynx radial |eng1 kw=164 |eng1 hp=220 |max speed kmh=183 |max speed mph=114 }}  {{aircontent  |see also= |related= |similar aircraft= |sequence= |lists= }}

==References==

===Notes=== {{reflist}}

===Bibliography=== {{Commons category}}{{refbegin}} *{{cite book |title= Handley Page Aircraft since 1907|last=Barnes |first= C.H.|year=1976 |publisher=Putnam |location=London |isbn=0-370-00030-7 }} *{{cite book |last= Jackson|first= A.J.|title= British Civil Aircraft since 1919 Volume 2|year= 1973|publisher= Putnam|location= London|pages=382|isbn=0-370-10010-7 }} {{refend}}

Category:1920s British civil utility aircraft Hamlet Category:Trimotors Category:High-wing aircraft Category:Aircraft first flown in 1926