WACO AIRCRAFT COMPANY
MODELS: Waco DGC-7, EGC-7
T.C. NUMBERS: 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 Ind.
Flaps extended - 100 mph True Ind.
Fuel capacity 70 gallons (2 tanks, one in each wing at 35 gallons)
(-14)
Oil capacity 5 gallons (-50)
No. passengers 4 (front -13, rear +22)
Baggage (Passenger type) 100 lbs. (+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 retractable) 11 lbs.
103. Starter (direct electric) 20 lbs.
104. Battery (Reading ARL-11) 35 lbs. (+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 gray)
112. Oil cooler (Drawing 20965) (-88)
113. Propeller - fixed metal
(a) Curtiss 55501 (Model DGC-7) 55 lbs.
(b) Curtiss 55503 (Model EGC-7) 72 lbs.
Class II:
200. Miscellaneous items as noted in
approved weight and balance report.
201. Air Corps type litter 25 lbs. (+72)
202. Parachute seats - rear 41 lbs.* (+27)
203. Cargo type with cargo compartment
and large baggage door (see NOTE 1) 36 lbs.*
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 lbs. (+9)
303. 6 or 7-1/2 gallon oil capacity (-50)
304. Wheel streamlines 22 lbs. (-27)
305. (a) Leather upholstery 12 lbs. (0)
(b) Leather seats 5 lbs. (0)
306. Precision litter (carried in baggage
compartment as baggage) 25 lbs.
307. Engine shielding (DGC-7 only) 11 lbs. (-64)
308. Radio equipment:
(a) 94 lbs. provided C. G. of instal-
lation is between (-19) and (+ 41)
(b) 56 lbs. between (-19) and (+52)
and 38 lbs. between (-19) and (+25)
309. Special paint (+17)
(a) Aluminum No weight change
(b) Blue 7 lbs.*
(c) Black 36 lbs.*
(d) Vermillion 40 lbs.*
(e) White 48 lbs.*
(f) French grey 51 lbs.*
310. Generators
(a) (Bosch LE/70/12 R5) 13 lbs. (-51)
(b) (Eclipse LV-160) 18 lbs. (-51)
(c) (Eclipse G-2) 21 lbs. (-51)
(d) (Eclipse D-2) 26 lbs. (-51)
311. Miscellaneous extra instruments 25 lbs. (-43)
312. Pressure fire extinguisher
(a) 15 lbs. (-45)
(b) 19 lbs. (+7)
(tank under rear seat)
313. Tail wheel lock (neglect increase)
314. Flares (three 1-1/2 minute, electric) 17 lbs. (+78)
315. Parachute seats - front (Waco-Switlik) 30 lbs.* (-13)
316. Extra door and wing walk 16 lbs.* (+19)
317. "Y" 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 lbs.* (-88)
(c) Controllable metal (Hamilton
Standard 2B20, blades 6109A-12)
(RGC-7) 33 lbs.* (-88)
319. Cactus-proof tubes 12 lbs.* (-27)
320. Larger starter Use actual weight (-51)
321. Larger battery (Reading AR-9) 15 lbs.* (+26)
322. Vacuum pump 4 lbs. (-53)
323. Plywood covered leading edge (wing)
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):
(a) Canada
-Landplane
- Skiplane - not eligible. However, structure complies with Canadian
requirements for ski installation. Maximum ski height 14-1/2 inches
and maximum tread 97-1/2 inches.
(b) All other countries.
II - MODEL 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 rpm (285 hp.)
Standard weight 3500 lbs. (serial numbers 4550 thru 4559)
3800 lbs. (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 lbs.
greater.)
Engine Wright R760E-2
Placard limits Maximum, except take-off
-- in.Hg., 2200 rpm (320 hp)
Take-off (one minute)
-- in.Hg., 2400 rpm (350 hp)
Standard weight 3500 lbs. (serial numbers 4550 thru 4559)
3800 lbs. (serial numbers 4560 and up)
(Serial numbers 4550 thru 4559 eligible upon receipt
of manufacturer's affidavit of conformity.)