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
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Aeronautical Products A-1
Aeronautics is the science or art involved with the study, design, and manufacturing of air flight–capable machines, and the techniques of operating aircraft and rockets within the atmosphere. The British Royal Aeronautical Society identi ...
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Aeronautical Products A-3
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CNNA HL-6
The CNNA HL-6 was a civil trainer aircraft developed in Brazil in 1943.
Development
The HL-6 was a low-wing cantilever monoplane
A monoplane is a fixed-wing aircraft configuration with a single mainplane, in contrast to a biplane or other ty ...
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Culver XPQ-9
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Culver XPQ-14, YPQ-14A, XPQ-15
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Bell 30
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Bellanca T-14
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Erco XPQ-13
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Fleetwings 33
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Hockaday Comet
The Hockaday Comet was a two-seat light civil aircraft, built in the United States before World War II but not flown until near the war's end. It failed to attract buyers and only one was completed.
Design
The design of the Hockaday Comet, led ...
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Piper PT-1
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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 Çan ...
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Zodiac Libra-Det
Geared drive
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Culver PQ-14 Cadet
The Culver PQ-14 Cadet is a modified version of the Culver LFA Cadet used as a target drone.
In 1940, the U.S. Army Air Corps drew up a requirement for a radio-controlled target drone for training anti-aircraft artillery gunners. The first air ...
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Republic RC-1 Thunderbolt (O-315)
Supercharged
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Northwestern XPG-1 (
Waco CG-4 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