TCDS E-293

Page No. 1 2 Rev. No. 2 2 Reformatted 10/94 DEPARTMENT OF TRANSPORTATION FEDERAL AVIATION ADMINISTRATION E-293 Revision 2 Dyna-Cam Industries X375 December 31, 1981 TYPE CERTIFICATE DATA SHEET NO. E-293 Engines of models described herein conforming with this specification and approved data on file with the Federal Aviation Administration are rated as airworthy for use in certificated aircraft in accordance with pertinent aircraft specifications and applicable portions of the Civil Air Regulations provided they are installed, operated and maintained as prescribed by the manufacturer. Manufacturer Dyna-Cam Industries Santa Ana, California Model X375 Type CAM Rating Maximum continuous hp, rpm, in. Hg., at: pressure altitude ft. 175-1800-26.0-3100 Sea level pressure altitude 175-1800-27.0-SL Takeoff, hp, rpm, full throttle at: Sea level pressure altitude 200-1900 Fuel (Min. grade aviation gasoline) 80/87 Bore & Stroke in. 3¼ x 3¾ Displacement 373 Cu. in. Compression ratio 8:1 Weight (dry) with starter & generator 338.0 Center of gravity location with starter & generator From front face of front valve cover 20.2 in. Off center line of propeller shaft 1.1 in. above 0.06 in. right Propeller shaft SAE 20 Carburetors 2 Stromberg NAS3A-1 Part No. A18173 Magnetos 2 Scintilla S6LN-50 Part No. L10025-245 Distributors 1 Autolite IAM 4001 Modified Dwg. 373027 1 Autolite E0 8785 Modified Dwg. 373027 Coils Autolite IG6002 Spark Plugs Autolite AT-4 Ignition timing Magnetos Deg. BTC. 12° Distributors: (Below 300 rpm) Deg. ATC 3° (Above 1100 rpm) Deg. BTC 12° Oil Sump Dry See notes 1,2,3,4 E-293 2 Certification Basis Type Certificate No. 293 Production Basis The engine is not eligible for installation in certificated aircraft until the installation, operation, maintenance, and overhaul manuals are available. NOTE 1. Maximum operating temperature Cylinder Head (gasket type thermocouple) 220°F. Oil inlet 200°F. Coolant out (distilled water) 200°F. NOTE 2. Fuel pressure limits: Maximum 3.0 psi. Minimum 0.5 psi. Oil pressure limits Normal operation Minimum 15.0 psi. Maximum 25.0 psi. Idling Minimum 3.0 psi. NOTE 3. The following accessory drive provisions are available: Maximum Overhang Direction of Max. Torque moment Accessory Rotation Speed * in lbs. in. lbs. Cont. Static Starter "CC" 6.88 420 37.5 Generator "CC" 2.25 12 72 ** Tachometer "C" 1.00 2 6 *** "C" clockwise, "CC" counter clockwise, when facing engine pad. *Speed - Times shaft RPM ** Generator not flange mounted. Maximum generator weight allowance 9.75 lbs. Torque values applicable when belt at proper tension (can be deflected one quarter inch when gripped midway between pulleys). *** No provisions available for mounting tachometer directly on engine. NOTE 4. This engine has been approved specifically for helicopter installation. .....END.....