Kingsford Smith PL.7

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Role Agricultural aircraft
National origin Australia
Manufacturer Kingsford Smith Aviation Service
Designer L Perrani
First flight 21 September 1956

The Kingsford Smith PL.7 was an Australian agricultural aircraft designed and built in the 1950s by Kingsford Smith Aviation Service.[1]

Design and development[edit]

The PL.7 was basically a welded steel tank for the pilot and chemical hopper, on the front was mounted a 400 hp (298 kW) Armstrong Siddeley Cheetah X radial engine.[1] It was an unequal span biplane with a tail unit supported by twin booms from the upper wings and a fixed tricycle landing gear.[1]


Data from [2]Flight

General characteristics

  • Crew: 1
  • Length: 24 ft 6 in (7.47 m)
  • Wingspan: 40 ft 10 in (12.2 m)
  • Height: 12 ft 0 in (3.66 m)
  • Wing area: 405 ft2 (37.6 m2)
  • Gross weight: 5000 lb (2268 kg)
  • Powerplant: 1 × Armstrong Siddeley Cheetah X radial piston engine, 400 hp (298 kW)


  • Cruise speed: 112 mph (180 km/h)



  1. ^ a b c Orbis 1985, p. 2256
  2. ^ "The Australian Industry...". Flight: p.278. 23 August 1957.