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

Specifications (12ACGSA-806/XO-805-3)

General characteristics

Components

Performance

  • Power output: 500 hp (373 kW) at 3,200 rpm

See also

Related lists

References

Notes
  1. ↑ NMUSAF (June 8, 2015), Franklin O-805-2, National Museum of the United States Air Force
  2. ↑ "New England Air Museum".
  3. ↑ "13 Liter WW2 Drone Engine: Super Rare Franklin 0-805". 29 August 2016.
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