TCDS TC 5E-14

WRIGHT AERONATICAL DIVISION CURTISS-WRIGHT CORPORATION MODELS: Wright Military Cyclone R-1300 Series T.C. NUMBER: 5E-14 Model R-1300-1A, -1B R-1300-3, -3A, -3B, -3C, -3D Type 5.625: 1 reduction gearing Direct drive Rating (impeller gear ratio): Maximum continuous, hp, rpm, in.Hg., at: Critical pressure altitude (ft.) 700-2400-37.0-7300 700-2400-38.0-5000 Sea level pressure altitude 700-2400-39.5-S.L. 700-2400-39.5-S.L. Take-off (5 minutes), hp, rpm, in.Hg., at: Critical pressure altitude (ft.) 800-2600-42.5-5500 800-2600-42.5-3500 Sea level pressure altitude 800-2600-43.5-S.L. 800-2600-44.0-S.L. Fuel (minimum grade aviation gasoline) 91/96 - - - - Bore and stroke, in. 6.125 x 6.312 - - - - Displacement, cu. in. 1301 - - - - Compression ratio 6.20: 1 - - - - Weight (dry), lbs. 1055 1150 C.G. location (dry): Forward of mounting pad centerline, in. 5.7 5.29 Above propeller shaft, in. 0.1 0.08 Propeller shaft, SAE No. 40 - - - - Crankshaft dampers (See NOTE 6) 3-1/2 order - front and rear - - - - Carburetion Bendix Stromberg PD9F1 Bendix Stromberg PD9G1 Ignition, dual Bosch S7LU-2 magnetos - - - - Timing, degrees BTC 20 - - - - Spark plugs See NOTE 7 - - - - NOTES 1, 2, 5, 6. 7 1, 2, 3, 4, 5, 6, 7 NOTE 1. Maximum permissible temperatures: Cylinder head (well type thermocouple) 475 degrees F. (500 degrees for takeoff) Cylinder base 340 degrees F. (350 degrees for takeoff) Oil inlet 205 degrees F. NOTE 2. Fuel and oil pressure limits: Maximum Minimum Fuel pressure limit 23 psi 21 psi Oil pressure limit 70 psi 60 psi NOTE 3. The ratings and limitations of the R-1300-3 are applicable to helicopter installation and operation. NOTE 4. The R-1300-3 incorporates special provisions for installation and operation with the propeller shaft inclined at an angle of approximately 40 degrees from horizontal, nose up. NOTE 5. When incorporated in certificated aircraft, the engine nameplate should be stamped “FAA Spec. No. 5E-14.” If there is no room for this information on the existing nameplate, such information may be stamped on a plain thin metal plate and attached beneath the existing plate by at least two of the mounting screws. NOTE 6. The above models incorporate additional characteristics as follows: R-1300 Models Characteristics -1A Similar to certificated Wright 957C7BA1 engines, except has torsional crankshaft dampers only. -1B Similar to -1A except has both torsional and lateral dampers. -3 Similar to certificated Wright 990C7BA1 engines, except has torsional dampers only. -3A Same as -3 but has 5° roller clutch impeller drive. -3B Same as -3A but has both torsional and lateral dampers. -3C Same as -3A but has 3° roller clutch impeller drive. -3D Same as -3B but has 3° roller clutch impeller drive. NOTE 7. The following spark plugs are approved on these engines: AC 172, 181, 272, 281 BG RB19R-2, RB27R-1, RB39R Champion R119, R819, REA87N, REB87N, RHA87N, RHB87N