TCDS TC 222

FRANKLIN ENGINE COMPANY MODELS: Aircooled Motors Franklin 6AC-264 T.C. NUMBER: T.C. 222 Model - 6AC-264 F2, F3 D2, D3 Type 6HOA - - - - Rating: Maximum continuous, hp, rpm, at S.L. press. alt. 120-2600-S.L. 110-2600-S.L. Take-off, hp, rpm, full throttle 120-2600 110-2600 Fuel (minimum octane aviation gasoline) 80 73 Bore and stroke, in. 4 x 3.5 - - - - Displacement, cu. in. 264 - - - - Compression ratio 7: 1 6.3: 1 Weight (dry), lbs. 248, 255 - - - - C.G. location (with starter and generator) Forward of rear mount C.L., in. - - - -, 8.3 - - - -, 8.3 Propeller shaft Flanged hub - 8-7/16 in. bolts - 5 in. circle - - - - Carburetion Marvel MA-3 or MA-3 - - - - carburetor with 1-5/16 in. venturi Ignition, dual Eisemann AM6 or LA6 - - - - magnetos with impulse coupling (retard 25 degrees) Ignition timing, deg. BTC 28 degrees - - - - Spark plugs AC SA-47, Champion - - - - AJ-66, C-10-S, 78S, Simmonds-Benton 4D3-S Oil sump capacity, quarts 8 - - - - Certification basis Type Certificate No. 222 (Expired 7/10/45) NOTE 1. Maximum permissible cylinder head, barrel, and oil inlet temperatures 540 degrees F., 310 degrees F., and 240 degrees F., respectively. NOTE 2. Models 6AC-264-D3 and F3, similar to Models 6AC-264-D2 and F2, eligible with modified accessory housing for use of Auto-Lite starter, Type MBG (12 volts), or MZ Auto- Lite generator, Type GDY or GAS (12 or 6 volts) and AC fuel pump types Nos. 10551 or 10739 at weight increase of 15, 12 and 3 lbs., respectively.