Franklin O-300


The Franklin O-300 was an American air-cooled aircraft engine of the early 1940s. The engine was of six-cylinder, horizontally-opposed layout and displaced. The power output ranged between and depending on variant. The 6ACG-298 featured a geared propeller drive.
An enlarged displacement version was known as the O-315, 6A3 or '''6AL-315.'''

Variants

O-300

;6AC-298:
;6AC-298-F3 : at 2,600 rpm
;6ACT-298: at 3,000 rpm
;6ACT-298-J4 : at 2,930 rpm
;6ACT-298-35 : at 2,930 rpm
;6ACG-298-P5 :Geared propeller drive 0.63:1, at 3,200 rpm
;6ACTS-298:Supercharged, at 3,200 rpm
;6ACTS-298-K4 :Supercharged, at 3,000 rpm
;6ACV-298:Vertical installation for helicopters, at 3,250 rpm

O-315 (6A3)

;6AL-315:
;6ALG-315:

Applications

Direct drive

Geared drive

Supercharged