Franklin 2 series explained

The Franklin 2 series of American two-cylinder air-cooled horizontally opposed aircraft engines were produced in the 1930s and 1940s.

Variants

Data from:^[1]

O-110

2A4-45:45abbr=onNaNabbr=on at 2,650rpm

2A4-49:49abbr=onNaNabbr=on at 3,000rpm

2A-110:60abbr=onNaNabbr=on at 3,000rpm

2AL-112: alternative designation of the 2A4-45

PZL-F2A: The Franklin 2 series produced under licence in Poland

O-120

2A-120:60abbr=onNaNabbr=on at 3,200rpm

PZL-F2A-120-C1:Production in Poland of the 2A-120

Applications

Data from:^[1]

• Bellanca 7ACA Champion
• Lockheed Little Dipper
• PZL-126 Mrówka
• Sportavia RF 5S
• VTC SSV-17
• Wallis WA-116/F
• Wallis WA-121/F
• WSK-PZL Krosno KR-02 Krokodyl
• PZL SZD-45-2 Ogar

References

• Web site: Erickson. Jack. Franklin, Aircooled Motors, Doman-Marks (US); Franklin Aircraft Engines, WSK-PZL (Poland) Part 1: Introduction and O-110 through O-300.

Further reading

• Gunston, Bill. (1986) World Encyclopedia of Aero Engines. Patrick Stephens: Wellingborough. p. 57

Notes and References

1. Web site: Franklin, Aircooled Motors, Doman-Marks (US); Franklin Aircraft Engines, WSK-PZL (Poland) Part 1: Introduction and O-110 through O-300.