TCDS TC 721

ODELS: Piper J4F, 2 PCIM r.C. NUMBER: T.C. 721 (Approved 3/22/40) (Same as Model J4A, T.C. 703, except engine installation) Engine Lycoming 0-145-B1 (See also item 301) Fuel 73 minimum octane aviation gasoline Engine limits For all operations, 2550 Ipm (65 hp) Airspeed limits Level flight or climb - 100 mph True Ind. Glide or dive - 135 mph True Ind. Propeller limits Static rpm at maximum permissible throttle setting - Not over 2470 No additional tolerance permitted - Not over 86 inches C.G. range (+1209) to (+21-0) Datum Leading edge of wing leveling means Level with 30 inch level (front and 9 in. aft wing leading edge) against bottom of second rib out with back end blocked down 1/4 inch. Maximum weight No. seats Maximum baggage 105 1bs. (+43.5) Fuel capacity 16 gallons (-10.5) cil capacity 1 gallon (-36) Control suriace movements Not available Serial numbers eligible 4-828 and up Required equipment Items 101, 102, 103, 104, 105, 106 and 107 Specifications pertinent to all models: Certification basis Type Certificate No. 721 (CAR 4a) Production basis Production Certificate No. Export eligibility Ellgible for export as follows, subject to provisions of MOP 2-4: (a) Canada structure installation at maximum weight of 1200 lbs. with ski height of 8-1/2 inches and ski overhang of 3-7/16 inches (distance along axle centerline from outer face of frake plate to intersection with ski centerline). (b) Great Britain provided rear spar is reinforced in accordance with Drawing D1007-E. (c) All other countries except Australia and New Zealand. Fropellers and Propeller Accessories 101. Propeller - wood (fixed or adjustable pitch) 12 1bs. (-50) Engines and Engine Accessories - Fuel and Oil System Enclosed type engine cowl Fram PB-5, Rit No. R-520, Fram installation Drawing No. 5 lbs. (-22.5) Engines (Lycoming, per Engine Specifi- (-28) *11 1bs. ibs. Auxiliary 9 gallon fuel tank installation (see NOTE 2) 11 1bs. (+57) 5 quart oil capacity No weight change Landing Gear and Floats 8.00-4 wheels with brakes (Hayes 841) (+7) Shock cord tail wheel installation (Drawing D311-E) serial numbers 4-400 to 4-827, inclusive (+174) leaf spring tail wheel installation (Drawing D395-E or D3010-E) serial numbers 4-828 and up. (+176) (+7) 8.00-4 4-ply tires 30- Parking brake (Drawing D4159-C) 3 lbs. (-5) 308. skis Use actual weight change (a) Piper S-1000 Fairbanks MF-5 (c) Federal SA-1 or SA-2 (a) Federal SC-1 or SC-2 (e) Aviation Service B (£) Air Transport 1220-480 (g) Air Transport 1460-580 (h) Marston MFS-1600 (1) Beath 655 (3) Reath 725 (K) Jack Carr Service 16 Electrical Equipment Battery and box (Exide 3-AC-7 or Willard SYR-7-3) 9 1bs. (+16) Battery (12V, Reading SYR-7-6) 15 1bs. (+16) Generator, (Air Associates GE20) 7 1bs. (+5) Landing light (Grimes ret.) 4 1bs. (+15) Interior Equipment 104. Cabin heater 313. Flares 9 1bs. (+31) Miscellaneous (not listed above) 105. Two cabin doors 306. Corrosion proofing 7 1bs. NOTE 1. Leading edge of stabilizer must be set so that the bolts in the stabilizer yoke attachment fittings are located in the center hole of the fitting as shown on Piper Drawing D450-F. NOTE 2. Placard fuel selector valve as follows when auxiliary tank (item 310(a)) is installed: "Use main tank for take-off and landing. flight, use auxiliary tank before using main. No aircraft of these models shall be eligible for original certifi- cation with single ignition engines after 8/1/41. In addition, no aircraft or these models shall be eligible for recertification with single ignition engines unless such aircraft were either previously certificated with single ignition engines or were originally certificated prior to 8/1/41.