PA-20 Four seats, conventional landing gear, Lycoming O-290-D engine. Certified 21 December 1949. PA-20S Three seats, conventional landing gear, optional float installation, Lycoming O-290-D engine. Certified 18 May 1950. PA-20 115 Four seats, conventional landing gear, Lycoming O-235-C1 engine. Certified 22 March 1950. PA-20S 115 Three-seat, conventional landing gear, optional float installation, Lycoming O-235-C1 engine. Certified 18 May 1950. PA-20 135 Four seats, conventional landing gear, Lycoming O-290-D2 engine. Certified 5 May 1952. PA-20S 135 Three seats, conventional landing gear, optional float installation, Lycoming O-290-D2 engine. Certified 15 May 1952. PA-22 Four seats, tricycle landing gear, Lycoming O-290-D engine. Certified 20 December 1950. PA-22-108 Colt Two seats, tricycle landing gear, Lycoming O-235-C1 or C1B engine. Certified 21 October 1960. PA-22-135 Four seats, tricycle landing gear, Lycoming O-290-D2 engine. Certified 5 May 1952. PA-22S-135 Three seats, tricycle landing gear, optional float installation, Lycoming O-290-D2 engine. Certified 14 May 1954. PA-22-150 Two or four seats, tricycle landing gear, Lycoming O-320-A2A or A2B engine. Certified 3 September 1952 as a four place in the normal category and 24 May 1957 as a two place in the utility category. PA-22-150 Caribbean The Caribbean model was a Lycoming O-320-A2A equipped model that remained in production after the was introduced, to differentiate it. PA-22S-150 Three seats, tricycle landing gear, optional float installation, Lycoming O-320-A2A or A2B engine. Certified 3 September 1954. PA-22-160 Two or four seats, tricycle landing gear, Lycoming O-320-B2A or B2B engine. Certified 3 September 1952 as a four place in the normal category and as a two place in the utility category. PA-22S-160 Three seats, tricycle landing gear, optional float installation, Lycoming O-320-B2A or B2B engine. Certified 25 October 1957. Specifications (1958 PA-22-160 Tri-Pacer) See also References Citations Bibliography High-wing aircraft Single-engined tractor aircraft Pacer 1940s United States civil utility aircraft Aircraft first flown in 1949