# Sopwith Wallaby

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Wallaby Sopwith Wallaby G-EAKS, side view General information Type Long-range transport biplane National origin United Kingdom Manufacturer Sopwith Aviation Company Status crashed, rebuilt as 8-seater transport Primary user Australian Aerial Services Number built 1 History First flight 1919; 107 years ago (1919) Retired 17 April 1920; 106 years ago (1920-04-17)

The **Sopwith Wallaby** was a British single-engined long-range biplane built during 1919 by [Sopwith Aviation Company](/source/Sopwith_Aviation_Company) at [Kingston upon Thames](/source/Kingston_upon_Thames).

## Development

The Wallaby was designed to compete in an Australian government £10,000 prize for an [England to Australia flight](/source/1919_England_to_Australia_flight). It was a single-engined biplane powered by a [Rolls-Royce Eagle VIII](/source/Rolls-Royce_Eagle) 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](/source/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

**[Australia](/source/Australia)**

- [Australian Aerial Services](https://en.wikipedia.org/w/index.php?title=Australian_Aerial_Services&action=edit&redlink=1)

## Specifications

*Data from* Sopwith—The Man and his Aircraft[1]

**General characteristics**

- **Crew:** 2

- **Length:** 31 ft 6 in (9.60 m)

- **Wingspan:** 46 ft 6 in (14.17 m)

- **Height:** 10 ft 8 in (3.25 m)

- **Wing area:** 583 sq ft (54.2 m2)

- **Empty weight:** 2,780 lb (1,261 kg)

- **Gross weight:** 5,200 lb (2,359 kg)

- **Fuel capacity:** 200 imp gal (910 L; 240 US gal)

- **Powerplant:** 1 × [Rolls-Royce Eagle VIII](/source/Rolls-Royce_Eagle) water cooled [V8 engine](/source/V8_engine), 360 hp (270 kW)

- **Propellers:** 2-bladed, 12 ft (3.7 m) diameter

**Performance**

- **Maximum speed:** 115 mph (185 km/h, 100 kn)

- **Cruise speed:** 107 mph (172 km/h, 93 kn)

## See also

**Aircraft of comparable role, configuration, and era**

- [de Havilland DH.18](/source/De_Havilland_DH.18)

## References

1. **[^](#cite_ref-1)** Robertson 1970, pp. 236–237, 240–241.

- Jackson, A.J. (1974). *British Civil Aircraft since 1919 Volume 3*. London: Putnam. [ISBN](/source/ISBN_(identifier)) [0-370-10014-X](https://en.wikipedia.org/wiki/Special:BookSources/0-370-10014-X).

- Robertson, Bruce (1970). *Sopwith-The Man and his Aircraft*. Letchworth, UK: Air Review. [ISBN](/source/ISBN_(identifier)) [0-900435-15-1](https://en.wikipedia.org/wiki/Special:BookSources/0-900435-15-1)..

## External links

Wikimedia Commons has media related to [Sopwith Wallaby](https://commons.wikimedia.org/wiki/Category:Sopwith_Wallaby).

- ["Sopwith (Australia) Transport Machine"](http://www.flightglobal.com/pdfarchive/view/1919/1919%20-%201360.html). *[Flight](/source/Flight_(magazine))*. **XI** (42): 1362–1367. 16 October 1919. No. 564. Retrieved 13 January 2011. Contemporary technical description, with photographs and drawings, of the airplane and the planned flight from England to Australia.

v t e Sopwith aircraft By role Fighters Buffalo Bulldog Camel Dolphin Dragon Gunbus Hippo Hispano-Suiza Triplane L.R.T.Tr. Pup Snail Snapper Snark Snipe Swallow Triplane Bombers B.1 Cobham Rhino Torpedo bomber Cuckoo Scouts/bombers Baby Sparrow 1½ Strutter Tabloid Two-Seat Scout Seaplanes Bat-Boat Circuit of Britain floatplane Sopwith Pusher Seaplane/S PG N Admiralty Type 137 Admiralty Type 138 Admiralty Type C Special torpedo seaplane Type C Type 807 Type 860 Schneider (1914) Baby Schneider (1919) Ground attack Salamander Sports tourer Gnu By designation B.1 B.2 2B.2 F.1 2F.1 4F.1 5F.1 7F.1 8F.1 3F.2 (I) 3F.2 (II) FR.2 2FR.2 FS.1 T.1 TF.1 TF.2 By name Antelope Atlantic Baby Bat-Boat Bee Buffalo Bulldog Circuit of Britain floatplane Camel Cobham Cuckoo Dolphin Dove Dragon Gnu Grasshopper Gunbus Hippo Hispano-Suiza Triplane L.R.T.Tr. Pup Rainbow Rhino Salamander Scooter Snail Snapper Snark Snipe Sparrow Sociable Swallow 1½ Strutter Tabloid Tadpole Three-seater Triplane Special torpedo seaplane Type C Wallaby Designers Herbert Smith Thomas Sopwith

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Adapted from the Wikipedia article [Sopwith Wallaby](https://en.wikipedia.org/wiki/Sopwith_Wallaby) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Sopwith_Wallaby?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.