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The Auster J/1U Workmaster is a late 1950s British single-engined single-seat high-wing agricultural monoplane built by Auster Aircraft Limited at
The aircraft were fitted with Britten-Norman rotary atomizers for crop spraying and a 100 imperial gallon (455 litre) chemical tank in the fuselage. An emergency dump valve allowed the tank to be emptied in 5 seconds. The Workmasters were mainly operated in West Africa, three later returning and are currently (2009) on the U.K. civil aircraft register.
Auster Workmaster promotional brochure
(PDF) {{Auster aircraft High-wing aircraft Single-engined tractor aircraft 1950s British agricultural aircraft Auster aircraft Aircraft first flown in 1958 1950s British aircraft
Rearsby
Rearsby is a village and civil parish in the Charnwood district of Leicestershire, England. It is known for its Seven Arch Bridge, and is also home to the Preachers Stone.
Location
The parish has a population of about 1,000, being measured at ...
, Leicestershire. Of traditional high-wing layout, it carries 90 gallons of spray fluid in a tank beside the pilot, an extra seat being provided for a passenger. The Lycoming 0-360-A engine of 180 h.p. driving a McCauley v.p. propeller giving it ample power; and slotted ailerons and balanced tail controls providing good handling. Oversize tyres were fitted. Take-off run at 2,550 lb gross weight and cruising speed at 65 per cent power are respectively 180 yd and . Britten-Norman spray gear was provided by Crop Culture, and this company ordered nine Workmasters.
History
Following the experience of developing the J/1B Aiglet agricultural aircraft, Auster developed a more powerful successor the J/1U Workmaster. Using the basic Autocrat fuselage it was strengthened and had dorsal fin fillets added, low pressure tyres and a 180 hp (134 kW) Avco Lycoming engine.
The aircraft were fitted with Britten-Norman rotary atomizers for crop spraying and a 100 imperial gallon (455 litre) chemical tank in the fuselage. An emergency dump valve allowed the tank to be emptied in 5 seconds. The Workmasters were mainly operated in West Africa, three later returning and are currently (2009) on the U.K. civil aircraft register.
Specifications (J/1U)
References
Further reading
* *External links
Auster Workmaster promotional brochure
(PDF) {{Auster aircraft High-wing aircraft Single-engined tractor aircraft 1950s British agricultural aircraft Auster aircraft Aircraft first flown in 1958 1950s British aircraft