Piper J-4 Cub Coupe

1938

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Piper J-4 Cub Coupe

To compete with the expanding range of lightplanes offered by other aircraft manufacturers, Piper produced in 1938 the Piper J-4 Cub Coupe. Retaining basically the same airframe as the J-3 Cub, this had a small increase in wing span and introduced improved landing gear with a fully-castoring tailwheel, hydraulic brakes and-speed fairings for the wheels. As powered initially by a 37kW Continental A50-1 it had the designation J-4, but introduction of the 48kW Continental A65-1 or -8 engine in 1940 brought redesignation as the J-4A, and later of the 56kW Continental A75-9 as the J-4E. In 1939 Piper introduced the J-4B, differing only in powerplant which initially, was a 45kW Franklin 4AC-171, but that was soon replaced by the 48kW Franklin 4AC-176-B2 without any change in designation. Last of the J-4s was the version powered by Avco Lycoming engines, the 41kW O-145-A1 or -A2, or 48kW O-145-B1, both of these Cub Coupes having the designation J-4F. Production of J-4s reached 1,250, and during World War II 17 J-4Es were impressed for service with the USAAF under the designation L-4E.

Specification 
 MODELPiper J-4F
 ENGINE1 x Avco Lycoming O-145-B1 flat-four piston engine, 48kW
 WEIGHTS
  Take-off weight590 kg1301 lb
  Empty weight336 kg741 lb
 DIMENSIONS
  Wingspan11.02 m36 ft 2 in
  Length6.86 m23 ft 6 in
  Height2.08 m7 ft 10 in
  Wing area17.00 m2182.99 sq ft
 PERFORMANCE
  Max. speed161 km/h100 mph
  Ceiling3660 m12000 ft
  Range547 km340 miles

Comments1-20 21-40 41-60
DAVID TURNER RN, e-mail, 14.01.2009 09:29

I WISH I HAD A J-4 NO CREAM PUFF JUST A GOOD FLYING J-4, BUT TODAY ITS JUST TOO DAMN EXPENSIVE TO HAVE ONE.
IT'S A SWET LITTLE AIRPLANE MY DAD HAD ONE FOR A TIME. I ENJOYED FLYING IT ON WEEKENDS MY GIRLFRIEND AND I WOULD GO TO THE BEACH IN IT.

reply

Robert Adams, e-mail, 06.01.2009 19:02

Question - Are the tail braces on the J-3 functional, as are the wing struts? Thanks

reply

1-20 21-40 41-60

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