TCDS TC 654

MODELS: Grumman G-21 and G-21A (Army OA-9, Navy JRF-1, JRF-2, JRF-3,31 9-d 2/5/38 JRF-5 and JRF-6B - See NOTE 8), 8 PCI-AM-FCM (Approved 9/29/37 and respectively) I.C. NUMBER: 654 (For difference between G-21 and G-21A, see NOTE 5) Engines 2 P&W Wasps Jr. SB or SB-2 with one 4-1/2N and one 9N damper (See also Item 111) Fuel 80 minimum octane aviation gasoline (for 400 hp rating), 87 minimum octane aviation gasoline (for 450 hp takeoff rating) Engine limits laximum, except taxeoit 34.5 in. Hg.. 2200 rpm (400 hp) (Straight line manifold pressure variation with altitude to 5000 ft.) 33.5 in. Hg., 2200 rpm Takeoff (one minute) (With 80 octane fuel) 33.5 in. Hg.. 2200 rpm (With 87 octane fuel) 36.5 in. Hg.. 2300 Ipm Airspeed limits Level flight or climb - 194 mph (169 knots) (T.I.A.S.) Glide or dive - 225 mph (195 Flaps extended - 110 mph (36 knots) Propeller limits Item 109, 228 or 302 must be installed Ceilings (a) Without de-icers; 5000 ft. absolute (density alt.) either engine inoperative (b) With de-icers: (usable in standard air at 8048 1bs. with either engine inoperative and the inoperative propeller idling in high C.G. range (+20.5) (15.2 percent MAC) to (+33.0) (28.0 percent MAC) Datum Wing leading edge at fuselage MAC 97.4 in. L.E. of MAC (+5.7) Leveling means Lugs on right side and aft bulkhead of pilot's compartment Maximum weight Model G-21A: 3000 1bs. (See NOTE 7) Model G-21: 7500+205°2 at +62, 2 at +102) (See NOTES 5 and 7) No. seats Baggage 100 1bs. maximum (300 1bs. in front compartmen (-65), 400 1bs. in rear compartment (+169)) (See NOTES 2 and 3) Fuel capacity 200 gallons (one 110 gallon tank in each center section) (*30) oil capacity 15 gallons (one 7-1/2 gallon tank in each nacelle) (+8) Control surface movements Not available Serial Nos. eligible 1001 and up and B-1 and 102, 103, 104, 105, 106 (9). Required eguipment Items (See NOTE 5). 107. 108, 109 and Specifications Pertinent to All Models: Certification basis Type Certificate No. 654 (Aero. Bulletin 71) Production basis Production Certificate No. Export eligibility Eligible for export except as follows, subject to provisions of MOP - Landplane, Amphibian and Flying boat eligible. - Skiplane not eligible. EQUIOMENT: Propellers and Propeller Accessories (except de-icing eguipment) 109. Ivo controllable metal (Hamilton Standard hubs 2D30, blades 6095A-12) 309 1bs. (-52) 201. Constant speed propeller (-23) 228. Iwo constant speed full feathering hydromatic (Grumman Drawings 13709A and 13710) (Hamilton Standard hubs 22D30, blades 6181A-12, 6183A-18, OI 6381A-12) +67 1bs. (-38) 302. Two controllable metal (Hamilton Standard hubs 2D30, blades 6167A-12 or 6101A-18) (for interchangeable blade models see Prop Spec. No. (NOTE 6) No weight change Engines and Engine Accessories - Puel and oil Two engine ring cowls 56 1bs. (-36) 102. Tvo oil radiators (UAP No. U3160) (0) 103. Two starters (Eclipse E-160) 77 1bs. (-12) 108- Pressure fire extinguisher (Lux type A-1) 21 1bs. (-33) 111. Engines damper) (must have one 4-1/2 N and one Use actual veight increase (a) PEW Wasps Jr. SB-3 (limits same (b) PEW Wasps Jr. T1B2 Maximum continuous (Sea lerel) 35 in. Hg.. 2200 cpm (Straight line manifold pressure variation with alt. 34 in. Hg.. 2200 rpm Takeoff (one minute) 37.5 in. Ng 1133 (limits same as 35 1n. Hg.. 2200 rpm (400 bp) 2300 pm (450 hp) (C) T1B2, Item 111(b) above) (₫) Military R-985-AN-4 (limits same (e) Military R-985-AN-6 or -AN-6B (limits same as SB) (£) militar same as SB) R-985-AN-12 OI -AN-12B (limits (9) military R-985-AN-14B (limits same as SB) (h) Military B-985-25 (limits same as I1B2, Item 111 (b) above) (1) Military 9-985-AN-1 or AN-3 (limits same as T1B2, Item 111(b) abore) 202. Starters (a) Two cartridge, Federal type (one standard battery may be omitted) 62 lbs. (-5) Two electric, Bclipse I-141 62 lbs. (-12) 218. Engine tool kit 13 1bs. (+161) 221. Engine vork shelf 9 1bs. (+189) 222. Auziliary fuel tank (60 gallons) (Drawings 12855 and 12854) 40 1bs. (+27) Landing Gear and Floats Two main wheel-brake assemblies, 30x7, туре 11, with 32x8 6-ply rating tires Bendix type B Goodrich (formerly Hayes) Model Wheel assembly G-3-564 Brake assembly H-2-102 13.25 in. streamline tail wheel with Goodrich 6-ply special H.D. tire 110- Wing tip floats (Edo N-760) (See NOTE 6) 87 1bs. 229. Electrically or manually controlled landing gear retracting mechanism per "Instruction Report No. G-21-11" for installation, by Clifford W. Bryan, 301. Wing tip floats (Grumman Drawing 13000) *43 1bs. No weight change (-5) 304. Federal SA-12 Use actual weight change 305. 12.50 in. smooth contour tail wheel with Goodrich 6-ply special H.D. tire Blectrical and Radio Equipment Generator - 24 amp. (Eclipse D-1) 26 Ibs. (-23) 105. Two batteries - 38 amp. hr. (Exide 6TS-13-1) 75 1bs. (-7) 203. Extra (а) 25enerator amp. (Eclipse D-1) 25 1bs. (-23) (b) 15 amp. (Eclipse G-1) 21 1bs. (-23) 50 amp. (Eclipse E-5) +17 Ibs. (-23) 204. Batters amp. hr. (Exide 6TX-19-1) 75 1bs. (-49) (b) 38 amp. hr. (Reading 6ARI-11) 38 lbs. (-48) (с) (Exide 6-TAS-9-1) 80 1bs. (-7) 207. Miscellaneous radio installations (а) Bow compartment including shelves Maximum 150 Ibs. (- 60) (b) Rear compartment Maximum 150 1bs. (+151) 215. One or two landing lights (Grimes ST-1000) 8 Ibs. each (+60) Interior Equipment Miscellaneous cabin furnishings Leather chair upholstery +40 1bs. (+77) (b) Lounge, replacing two chairs (Gillies No. 1203) 53 1bs. (+102) (c) Bed, replacing two chairs (Gillies No. 1201) 100 1bs. (+102) (d) chairs 35 Ibs. (*102) (e) Buffet, replacing one chair and one auxiliary seat (Gillies No. 1214) 32 Ibs. (+25) (£) Writing table (Gillies No. 1215) 19 1bS. (+54) (9) Locker (Gillies No. 1215) 12 1bs. (+20) Wash basin with 5 quarts water 16 1bs. (+151) (i) Auxiliary seat 10 1bs. (+24) (J) Special folding bench (replacing two chairs) 28 1bs. (+92) Four sets quick detachable chair 12 1bs. (+77) and leg locks (Drawing 13272) 4 1bs. (+118) 206. Toilet (See NOTE 2a) 6 1bs. (*184) 209. Camera installation (Zeiss RMK 20/3030) (Drawing 12840) 305 1bs. (+93) 213. Plares (I.F.S. MK. I pistol with 3 1 minute) 14 Ibs. (+17) 214. Very's pistol and 12 rounds ammunition 4 Ibs. 219- Parachutes 20 1bs. each 220. Life saving equipment 75 1bs. (+161) Life preservers (8) Associates B-1) 10 1bs. Life preservers (Air Associates C) 3 1bs. each Life preservers (approved Kapok) 3 1bs. each (+169) 224. Automatic pilot installations servo unit model No. C4-51-C 34 1bs. 6-40 Provision for installation 15 1bs. 1-13 servo unit model No. C6-D3-B Iotal 131 1bs. (-22) Consisting of gyro unit 39 1bs. (-32) 52 1bs. (-40) Accessories and tubing 40 1bs. (+12) Lear Model L-2B automatic pilot installation in accordance with Lear Drawing 91400 50 1bs. (+107) Placards required near the auto- pilot controller: use autopilot 450 feet above 'Do not use autopilot in the approach configuration below 150 feet above terrain. ¿ "Do not manually overpower auto- pilot to increase angle of bank or angle of pitch.i Servo stall torque measured at the servo on the ground: Aileron 25 in. lbs., 75 in. 1bs.. 100 in. 1bs. Cabin heater manifold 9 1bs. Flare installation (wing) per Dravings 12436 and 13810 49 1bs. De-Icing Equipment 221. De-icer installation (See NOTE 7) 125 1bs. (a) Pixed portion (includes 62 lbs. (+17) piping, gages, valves, pump. tank, spinners, slinger rings, etc.) (b) Removable portion Wing boots 26 1bs. (+9) Tail boots 18 1bs. (+255) De-icer fluid 19 1bs. (+146) Miscellaneous (not listed above) 208. Airline windshield (3/8 inch, 5-ply) +20 1bs. (-28) 210- Window in emergency exit 1 1b. 217. Miscellaneous seaplane eguipment Anchor (Northill 12 lbs. and 100 ft. Manila line 1-3/4 in.) 19 1bs. (-98) (b) Bilge pump, boat hook, fog horn and chart board 7 1bs. 223- Emergency exit (pilots' compartment) (Drawing 12149) 7 1bs. (-7) 226. Enlarged right hand cabin door (Drawing 13265) +2 lbs. (+118) Current weight and balance report including list of equipment included in certificated weight empty, and loading instructions when necessary, must be in each aircraft at the tine of original certification and at all times thereafter (except in the case of air carrier operators having weight control system). NOTE 2. when item 206 is installed, the maximum allowable rear compartment baggage must be reduced 176 1bs. When items of optional equipment are installed in the baggage compartment, the compartments must be placarded for reduced capacities accordingly. Pertinent agent's report should indicate items so installed. When six passenger seats are removed (96 1bs.), the cabin may be loaded to a maximum weight of 1700 1bs. with a maximum of 25 lbs. per lineal inch, provided a weight and balance check is made. NOTE 4. (Deleted - 2/6/43) NOTE 5. Model G-21 same as G-21A except maximum standard weiqht of 7500 1bs. and 13.25 in. streamline tail wheel with Goodrich 6-ply tire in lieu of item 107. Landplane - The wing tip floats may be renoved provided the airplane is placarded for use as landplane No C.G. check is required. Flying Boat - The landing gear and tail wheel, their retractive mechanisms and the brake operating system may be removed provided the airplane is placarded as a flying boat, and the support tubes, attachment bolts, etc., are installed so as to maintain The decrease in veight is approximately 300 lbs. C.G. check is required. NOTE 7. Maximun weight may be increased 48 lbs. when complete de-icer is installed. NOTE 8. Prior to certification as civii airplanes, the following should be accomplished: If uncertificated position lights are installed, they should be renoved or replaced vith certificated lights. (D) Remove the Navy MK IV-1 flares or modify the installation to accommodate approved flares in the Navy JRF airplanes. (c) If uncertificated flares are installed in Army OA-9 airplanes, they should be removed or replaced with certificated flares. (a) If plexiglass blisters are installed on the JRF-6B, they should be replaced with a regular window or the opening covered in a suitable manner. (e) If mixture control operation in reverse direction from standard civil practice is present in JRF-5 or JRF-SB airplanes, it should be changed to Jive a "forward" movement for full rich position. This may be accomplished by rotating the position of the mixture control pellcranks 180 degrees on the carburetors and reversing the toothed segments of the cockpit control end for end. The cockpit control placard should be revised accordingly.