A | B | C | D | E | F | G | H | CH | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
O-805/12AC | |
---|---|
Franklin O-805 on display at the National Museum of the United States Air Force | |
Type | 12-cylinder horizontally opposed piston engine |
Manufacturer | Franklin Engine Company |
First run | c.1945 |
The Franklin O-805 (company designation 12AC) was an American air-cooled aircraft piston engine, designed in the mid-1940s and was to be used in radio-controlled pilotless drones that were to be guided from an accompanying control plane. Due to project requirement changes and cancellations the engine was not produced.[1]
A smaller displacement 12-cylinder Franklin engine of 1941 was known as the O-595 or 12AC-596.
Variants
O-805
- 12AC-806
- 450 hp (336 kW)0
- 12ACG-806 (XO-805-1)
- 456 hp (340 kW) at 3,200 rpm, geared to 0.632:1.
- 12ACGSA-806 (XO-805-3 and O-805-5)
- 500 hp (373 kW) at 3,200 rpm, supercharged and geared to 0.632:1 (XO-805-3), or to 0.587:1 (O-805-5).
O-595
- 12AC-596
- 300 hp (224 kW) at 2,600 rpm
- 12ACG-596
- 350 hp (261 kW) at 3,500 rpm
Applications (intended)
Survivors
- There is an O-805-2 on display at the New England Air Museum, Bradley International Airport, Windsor Locks, CT [2]
- One surfaced and was sold privately in August, 2016, on eBay for US$8500.[3]
Specifications (12ACGSA-806/XO-805-3)
General characteristics
- Type: 12-cylinder air-cooled horizontally opposed aircraft piston engine
- Bore: 4.625 in (117.5 mm)
- Stroke: 4.0 in (101.6 mm)
- Displacement: 806.4 cu in (13.2 L)
Components
- Valvetrain: OHV
- Cooling system: Air-cooled
- Reduction gear: 0.632
Performance
- Power output: 500 hp (373 kW) at 3,200 rpm
See also
Related lists
References
- Notes
- ^ NMUSAF (June 8, 2015), Franklin O-805-2, National Museum of the United States Air Force
- ^ "New England Air Museum".
- ^ "13 Liter WW2 Drone Engine: Super Rare Franklin 0-805". 29 August 2016.
External links
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