The Franklin O-300 (company designation 6AC-298) 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 (O-300-1): at 2,600 rpm
;6ACT-298: at 3,000 rpm
;6ACT-298-J4 (O-300-3): at 2,930 rpm
;6ACT-298-35 (O-300-11): at 2,930 rpm
;6ACG-298-P5 (O-300-9):Geared propeller drive 0.63:1, at 3,200 rpm
;6ACTS-298:Supercharged, at 3,200 rpm
;6ACTS-298-K4 (O-300-7):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
*
Aeronautical Products A-1
*
Aeronautical Products A-3
*
CNNA HL-6
*
Culver XPQ-9
*
Culver XPQ-14, YPQ-14A, XPQ-15
*
Bell 30
The Bell 30 was the prototype for the first commercial helicopter, and the first helicopter built by the Bell Aircraft Company. Designed by Arthur M. Young, the type served as a demonstration testbed for the successful Bell 47.
Development
You ...
*
Bellanca T-14
*
Erco XPQ-13
*
Fleetwings 33
The Fleetwings Model 33 was a 1940s American primary trainer prototype airplane built by Fleetwings
Fleetwings, later Kaiser-Fleetwings, was an American aircraft company of the 1930s and 1940s.
History
Fleetwings started in 1926 (under a d ...
*
Hockaday Comet
*
Piper PT-1
__NOTOC__
The Piper PT-1 was a 1940s American two-seat primary training monoplane designed and built by Piper Aircraft at Lock Haven. A low-wing tandem two-seat monoplane, the PT-1 was the first Piper aircraft to have a low-wing. It had a fabric ...
*
Troy A
Troy ( el, Τροία and Latin: Troia, Hittite: 𒋫𒊒𒄿𒊭 ''Truwiša'') or Ilion ( el, Ίλιον and Latin: Ilium, Hittite: 𒃾𒇻𒊭 ''Wiluša'') was an ancient city located at Hisarlik in present-day Turkey, south-west of Ç ...
*
Zodiac Libra-Det
The zodiac is a belt-shaped region of the sky that extends approximately 8° north or south (as measured in celestial latitude) of the ecliptic, the apparent path of the Sun across the celestial sphere over the course of the year. The path ...
Geared drive
*
Culver PQ-14 Cadet
*
Republic RC-1 Thunderbolt (O-315)
Supercharged
*
Northwestern XPG-1
Northwestern or North-western or North western may refer to:
* Northwest, a direction
* Northwestern University, a private research university in Evanston, Illinois
** The Northwestern Wildcats, this school's intercollegiate athletic program
** ...
(
Waco CG-4
Waco ( ) is the county seat of McLennan County, Texas, United States. It is situated along the Brazos River and I-35, halfway between Dallas and Austin. The city had a 2020 population of 138,486, making it the 22nd-most populous city in the st ...
twin-engine conversion)
Specifications (6AC-298)
See also
References
;Notes
;Bibliography
* Gunston, Bill. (1986) ''World Encyclopedia of Aero Engines''. Patrick Stephens: Wellingborough. p. 57
{{US military piston aeroengines
Franklin aircraft engines
1940s aircraft piston engines
Boxer engines