Franklin O-400 Explained

The Franklin O-400 (company designation 8AC) was an American air-cooled aircraft engine of the 1940s. The engine was of eight-cylinder, horizontally-opposed layout and displaced 3971NaN1. The power output was 235abbr=onNaNabbr=on.

Variants

8AC-398:200abbr=onNaNabbr=on at 2,600 rpm.

8ACG-398:235abbr=onNaNabbr=on at 3,500 rpm. The 8ACG-398 was unusual in using a reduction gearing for take-off and direct drive for cruising.

References

Notes

Bibliography

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