Piper PA-11 Cub Special

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PA-11 Cub Special
Piper PA-11 Super Cub CF-CUB 1947 model Photo 1.JPG
General information
Type Light aircraft
National originUnited States
Manufacturer Piper Aircraft
StatusProduction completed
Primary userPrivate owners
Number built1,541 [1]
History
Manufactured1947-1949
Introduction date1947
First flightAugust 1946
Developed from Piper J-3 Cub
Variants Piper PA-18 Super Cub

The Piper PA-11 Cub Special is a later-production variant of the J-3 Cub manufactured by Piper Aircraft.

Contents

Design and development

PA-11 landing PA-11-Landing.jpg
PA-11 landing

The PA-11 is a high-wing braced cabin monoplane with a tail-wheel landing gear. The enclosed cabin has two tandem seats. Early PA-11s had a Continental A65-8 engine, while the later ones had the option of a Continental C90-8. [2]

The PA-11 was based on the earlier J-3, but with the engine cowling fully enclosed (as on the earlier J-5), the windshield sloped at a shallower angle, and the fuel tank placed in the port wing root. [2] Both seats were slightly moved back, and solo flying was usually from the front seat.

The prototype and two subsequent pre-production models were built using a modified J-3 fuselage and wings. The prototype first flew in August 1946 followed by the two pre-production aircraft later in 1946. [2]

The first production aircraft was completed at Lock Haven in March 1947 and production continued at Lock Haven until September 1949. A second production line was established at Ponca City between September 1947 and January 1948. [2]

On the early PA-11s, the fuselage was painted with a metallic blue on the lower half the rest being Lock Haven Yellow. The later PA-11s were all yellow with a simple brown stripe.

The PA-11 also formed the basis for the next evolution in the Cub series, the PA-18 Super Cub, which shares many features.

Modifications

Float-equipped PA-11S at Seattle Renton in 1973 Piper PA-11S N4580M Floats Renton 03.11.73 edited-3.jpg
Float-equipped PA-11S at Seattle Renton in 1973

A small number of PA-11s have been modified to use a Tricycle landing gear. [3]

The PA-11 was one of the first aircraft to be used by Piper for experiments with the nose wheel (also known as tricycle gear) configuration. Although its original design is intended to be a tail-dragger, a modification was created to mount a nose wheel. [ citation needed ]

The nose wheel is attached to the two rear engine mounts by y-shaped steel tubes attached to a steel tube with a shaft that slides freely with the wheel. Cables run underneath the belly directly from fixtures on the rudder pedals to the nose wheel shaft. This gave the ability to steer by pivoting the nose wheel shaft with the rudder pedals. The shock system consisted of six circular bungee cords, sometimes four for softer landings, located on either side of the nose wheel shaft to ears on the top tube and the bottom shaft connected to the wheel. [ citation needed ]

For the aircraft to balance properly with the nose wheel, the main gear was flipped around so that the center of balance would move forward. The pilot would sit in the front seat for added stability.[ citation needed ]

A number of Cub Specials have been converted for flight operation using floats.[ citation needed ]

Variants

PA-11 Cub Special at Chelles airfield near Paris in June 1967 Piper PA-11 Cub Special F-BFMA Chelles 02.06.67 edited-2.jpg
PA-11 Cub Special at Chelles airfield near Paris in June 1967
PA-11
Two-seat light aircraft, powered by either a 65 hp (48 kW) Continental A65-8 or a 95 hp (71 kW) Continental C90-8 piston engine.
PA-11S
Seaplane variant with twin EDO 1400 floats.
L-18B
United States Military designation of the PA-11 Cub Special, powered by a 95 hp (71 kW) Continental C90-8F piston engine, 105 built and delivered to Turkey, under the Military Assistance Program.[ citation needed ]

Operators

IAF Piper PA-11 Cub Special planes in the Negev in March 1949 Sde Avraham.jpg
IAF Piper PA-11 Cub Special planes in the Negev in March 1949

Military operators

Flag of Israel.svg  Israel
Flag of Turkey.svg  Turkey

Specifications (PA-11 with 90 hp Continental engine)

Data from Piper Aircraft and Their Forerunners [3]

General characteristics

Performance

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References

Notes

  1. Simpson 2005, p. 230.
  2. 1 2 3 4 Peperell 1987, p. 55.
  3. 1 2 Peperell 1987, p. 57.
  4. 1 2 3 Bridgman 1948, p. 310c

Bibliography

  • Bridgman, Leonard (1948). Jane's All the World's Aircraft 1948. London: Sampson Low, Marston & Company, Ltd.
  • Peperell, Roger. Piper Aircraft and Their Forerunners. Tunbridge Wells, Kent, UK: Air-Britain (Historians) Ltd, 1987. ISBN   0-85130-149-5.
  • Simpson, Rod. General Aviation Handbook. Leicester, UK: Midland Publishing, 2005. ISBN   978-1-85780-222-1.

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