TCDS ATC 639

MODEIS: Waco DGC-7, EGC-7 I.C. NUMBER: ATC 639 I - SPECIFICATIONS PERTINENT TO ALL MODELS Propeller Maximum permissible diameter 103 inches Placard speeds Level flight or climb - 158 mph True Ind. Glide or dive - 214 mph True Flaps extended -100 mph True Ind. Fuel capacity 70 gallons (2 tanks, one in each wing at 35 gallons) (-94) cil capacity 5 gallons (-50) No. passengers (front -13, rear +22) Baggage (Passenger type) 100 1bs. (+52) (cargo type) (See NOTE 1) c.G. limits (-18,9) and (-6.0) Specification basis Approved Type Certificate No. 639 Serial numbers 4550 and up manufactured prior to 2/28/41 eligible. Approval expired as of that date. EQUIPMENT: (Datum is leading edge of lower wing) (* Means net increase) Class I: 101. Engine ring cowl 29 lbs. 102. Landing lights (Grimes retractarle) 11 Its. 103. Starter (direct electric) 20 1bs. 104. Battery (Reading ARI-11) 35 1bs. (+26) 105. Heater and ventilator 106. Wheel cuffs 107. 7.50-10 wheels (Hayes 750M hydraulic) with 7.50-10 tubes and 8.50-10 tires) (wheels must be placarded for these tires) 108. Tail wheel - 10.5 inch streamline or 10x3 (with 4-ply HD tire) 109• Throw-over type control column 110. Breeze engine shielding (ECG-7 only) 111. standard paint (gunmetal Oll cooler (Drawing 20965) (-89) Propeller - fixed metal Curtiss 55501 (Model DGC-7) 55 1bs. Curtiss 55503 (Model 72 1bs. Class II: Miscellaneous items as noted in approved weight and balance report. 201. Air Corps type litter 25 1bs. (+72) Parachute seats - rear 41 1bs. * (+27) Cargo type with cargo compartment and large baggage door (See NOTE 1) 36 1bs. * Class III: 301. 95 gallon fuel capacity (2 tanks at 47.5 gallons each) 18 lbs.* (-14) 302. Additional 25 gallon fuel tank installed under rear seat (including gage and wobble pump) (eligible as 4-place type only) 23 1bs. (+9) 304 . 303. 6 or 7-1/2 gallon oil capacity 305. (a) Wheel streamlines Leather upholstery 12 Its 22 lts. (0) (-50) (-27) 306. Precision litter (carried in Laggage (b) Leather seats 5 1bs (0) compartment as baggage) 308. 307. Radio equipment Engine shielding (DGC-7 only) 1 1DS (-64) (a) 94 Ibs. provided C.G. of instal- lation is between (-19) and (+41) (b) 56 1bs. between (-19) and (+52) and 38 1bs. between (-19) and (+25) 309. Special paint (+97) (a) Aluminum No weight change (b) Blue 7 1bs. * (c) Black 36 1ks. * (₫) Vermillion 40 1bs. * (e) white 48 1bs.* (£) French grey 51 1bs. * 310. Generators (a) (Bosch LE/70/12 R5) 13 lhs. (-51) (b) (Eclipse IV-160) 18 1bs. (-51) (c) (Eclipse G-2) 21 1bs. (-51) (a) (Eclipse D-2) 26 1bs. (-51) 311- Miscellaneous extra instruments 25 Its. (-43) 312. Pressure fire extinguisher (a) 15 1bs. (-45) (b) 19 1bs. (+7) (tank under rear seat) 313. Tail wheel lock (neglect increase) 314- Flares (three 1-1/2 minute, electric) 17 1bs. (+78) 315. Parachute seats - front (Waco-Switlik) 30 1bs.* (-13) 316. Extra door and wing walk 16 1bs.* (+19) 317. my" type control column 4 lbs.* (-33) 318. Propellers (a) Adjustable metal Use actual weight (-88) (b) Controllable metal (Hamilton Standard hub 2B20, blades 6109A-9) (DGC-7) 54 1bs.* (-88) (C) Controllable metal (Hamilton Standard 2B20, blades 6109A-12) (RGC-7) 33 1bs.* (-88) 320. 3 19- Larger starter Cactus-proof tubes Use actual weight (-51) 12 1bg.* (-27) 321. Larger battery (Reading AR-9) 15 1bs.* (+26) 323. Plywood covered leading edge (wing) 322. Vacuum pump " 1bs. (-53) replacing dural NOTE 1. Weight and balance report including list of equipment included in certificated weight empty, and loading instructions when necessary, must ' be submitted for each cargo type aircraft with original inspector's report and each subsequent report covering changes in such equipment. NOTE 2. Eligible for export as follows subject to inspection for equipment specified in Chapter XII of Inspection Handbook (5/13/38): - Landplane - Skiplane - not eligible. However, structure complies with Canadian requirements for ski installation. Maximum ski height 14-1/2 irches and maximum tread 97-1/2 inches. (b) All other countries. II - MODEI DGC-7, 5 PCLB (Same as model ZGC-7, ATC No. 627, except engine installation and battery location.) Engine Wright R760E-1 Placard limits Maximum, except take-off -- in. Hg., 2100 rpm (285 hp) Take-off (one minute) -- in.Hg.. 2100 pm (285 hp) Standard weight 3500 1bs. (serial numbers 4550 thru 4559) 3800 1bs. (serial numbers 4560 and up) (Serial numbers 4550 thru 4559 eligible upon receipt of manufacturer's affidavit of conformity.) III - MODEL EGC-7, 5 PCLB (Same as DGC-7 except engine installation. Empty weight approximately 41 Ibs. greater.) Engine Wxight R760E-2 Placard limits except take-off 2200 rpm (320 hp) -- in.Hg., 2400 rpm (350 hp) Standard weight (serial numbers 4550 thru 4559) (serial numbers 4560 and up) 4550 thru 4559 eligible upon receipt of manufacturer's affidavit of conformity.)