{{Use dmy dates|date=October 2019}} {{Use British English|date=November 2011}} <!-- This article is a part of [[Wikipedia:WikiProject Aircraft]]. Please see [[Wikipedia:WikiProject Aircraft/page content]] for recommended layout. --> {{Infobox aircraft | name = Wallaby | logo = | logo_size = | image = Sopwith Wallaby.png | alt = | caption = Sopwith Wallaby G-EAKS, side view | long_caption = | other_names = | aircraft_type = Long-range transport biplane | aim = | outcome = | related = | national_origin = United Kingdom | manufacturer = [[Sopwith Aviation Company]] | design_group = | designer = | builder = | issuer = | status = crashed, rebuilt as 8-seater transport | owners = | primary_user = [[Australian Aerial Services]] | 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 = {{end date and age|1920|04|17|df=y}} | first_flight = {{start date and age|1919}} | initiated = | in_service = | last_flight = | expected = | developed_from = | variants = | developed_into = | preservation = | fate = | predecessors = | successors = | concluded = }}

The '''Sopwith Wallaby''' was a British single-engined long-range biplane built during 1919 by [[Sopwith Aviation Company]] at [[Kingston upon Thames]].

==Development== The Wallaby was designed to compete in an Australian government £10,000 prize for an [[1919 England to Australia flight|England to Australia flight]]. It was a single-engined biplane powered by a [[Rolls-Royce Eagle|Rolls-Royce Eagle VIII]] engine. It had an open cockpit with two seats that could be retracted inside the enclosed cabin.

==Operational history== The Wallaby registered ''G-EAKS'' departed Hounslow on 21 October 1919 for Australia. On 17 April 1920 it crashed on the island of [[Bali]] in the Dutch East Indies. It was shipped to Australia and re-built as an 8-seater transport and was used by Australian Aerial Services.

==Operator== ;{{AUS}} *[[Australian Aerial Services]]

==Specifications== {{Aircraft specs |ref=Sopwith—The Man and his Aircraft<ref>Robertson 1970, pp. 236–237, 240–241.</ref> |prime units?=imp<!-- "imp", "kts" or "met" to display the units in a given order. Without an entry here, no specifications will show --> <!-- General characteristics --> |genhide=

|crew=2 |capacity= |length m= |length ft=31 |length in=6 |span m= |span ft=46 |span in=6 |height m= |height ft=10 |height in=8 |wing area sqm= |wing area sqft=583 |empty weight kg= |empty weight lb=2780 |gross weight kg= |gross weight lb=5200 |fuel capacity={{convert|200|impgal|abbr=on}} <!-- Powerplant --> |eng1 number=1 |eng1 name=[[Rolls-Royce Eagle|Rolls-Royce Eagle VIII]] |eng1 type=water cooled [[V8 engine]] |eng1 kw=<!-- prop engines --> |eng1 hp=360<!-- prop engines -->

|prop blade number=2<!-- propeller aircraft --> |prop name= |prop dia m=<!-- propeller aircraft --> |prop dia ft=12<!-- propeller aircraft --> |prop dia in=<!-- propeller aircraft -->

<!-- Performance --> |perfhide=

|max speed kmh= |max speed mph=115 |max speed kts= |max speed mach=<!-- supersonic aircraft --> |cruise speed kmh=<!-- if max speed unknown --> |cruise speed mph=107<!-- if max speed unknown --> |cruise speed kts= |range km= |range miles= |range nmi= |ceiling m= |ceiling ft= |climb rate ms= |climb rate ftmin= |more performance=

|avionics= }}

==See also== {{aircontent <!-- include as many lines are appropriate. additional lines/entries with carriage return. --> |see also= |related=<!-- related developments --> |similar aircraft=<!-- similar or comparable aircraft --> * [[de Havilland DH.18]] |sequence=<!-- designation sequence, if appropriate --> |lists=<!-- related lists --> }}

==References== {{reflist}}

*{{cite book |last= Jackson|first= A.J.|title= British Civil Aircraft since 1919 Volume 3|year= 1974|publisher= Putnam|location= London|isbn=0-370-10014-X }} *{{cite book|last=Robertson|first=Bruce|title=Sopwith-The Man and his Aircraft|location= Letchworth, UK|publisher=Air Review|year= 1970|isbn= 0-900435-15-1}}.

==External links== {{commons category|Sopwith Wallaby}} *{{cite journal |date=16 October 1919 |title=Sopwith (Australia) Transport Machine | journal=[[Flight (magazine)|Flight]] |volume=XI |issue=42 |id=No. 564 |pages=1362–1367 |url=http://www.flightglobal.com/pdfarchive/view/1919/1919%20-%201360.html |accessdate=13 January 2011 }} Contemporary technical description, with photographs and drawings, of the airplane and the planned flight from England to Australia.

{{Sopwith Aviation Company aircraft}}

[[Category:1910s British airliners]] [[Category:Sopwith aircraft|Wallaby]] [[Category:Single-engined tractor aircraft]] [[Category:Biplanes]] [[Category:Aircraft first flown in 1919]]