WACO AIRCRAFT COMPANY
MODELS: Waco AQC-6, YQC-6, ZQC-6 (Army UC-72H)
T.C. NUMBER: 598
I - SPECIFICATIONS PERTINENT TO ALL MODELS
Placard speeds Landplane:
Level flight or climb - 158 mph True Ind.
Glide or dive - 214 mph True Ind.
Flaps extended - 108 mph True Ind.
Level flight or climb - 144 mph True Ind.
Seaplane:
Glide or dive - 214 mph True Ind.
Flaps extended - 108 mph True Ind.
Fuel capacity 70 gallons (two tanks, one 35 gallon in each wing)
(-14)
Oil capacity 5 gallons (-50)
No. passengers 4 (front (-13), rear (+22))
Baggage Passenger type 100 lbs. (+52)
Cargo type - 800 lbs. (See Item 202)
C.G. limits Landplane (-22.4) and (-6.7)
Seaplane (-18.2) and (-7.3)
Datum Lower wing leading edge
Leveling means Lower surface upper wing at strut points
Certification basis Type Certificate No. 598
Production basis None (see NOTE A)
Serial numbers 4385 and up per NOTE A and all AAF numbers of model
UC-72H eligible
EQUIPMENT:
(* Means net increase)
Class I:
Landplane:
101. Engine ring cowl
(a) YQC-6 and ZQC-6 22 lbs. (-77)
(b) AQC-6 32 lbs. (-77)
102. Landing lights (Grimes retractable) 11 lbs.
103. Starter 21 lbs.
104. Battery 42 lbs. (-59)
105. Cabin heater 2 lbs.
106. Wheel cuffs 4 lbs.
107. 6.50-10 wheels with 7.50-10 tubes and
8.50-10 tires) (wheels must be placarded
for these tubes and tires)
108. 10.5 inch streamline tail wheel
109. Throw-over control column
110. Generator 12 lbs (-55)
111. Standard paint (blue) 11 lbs. (+17)
112. Propeller - fixed pitch metal
(Curtiss 55501) (-92)
113. Oil cooler (Models AQC-6 and ZQC-6)
Seaplane: (Items 101 thru 105, 109 thru 113 PLUS)
151. Edo 38-3430 floats with water rudder 481 lbs. (-14)
152. Water rudder control 4 lbs.
153. Additional fin (under fuselage) 10 lbs. (+191)
Class II:
200. Miscellaneous items as noted in
approved weight and balance report.
201. Rear parachute seats 40 lbs. (+27)
202. Cargo type with cargo compartment
and large baggage door 36 lbs.*
Class III:
301. Oil cooler (Model YQC-6) (See Item 113) 5 lbs. (-88)
302. (a) 95 gallon fuel capacity (two tanks
at 47-1/2 gallons each) 18 lbs. (-14)
(b) Additional 25 gallon fuel tank
installed under rear seat
(including gage and wobble pump)
(eligible as 4-place type only) 23 lbs.
303. 6 or 7-1/2 gallon oil capacity (-50)
304. Wheel streamlines 18 lbs. (-27)
305. Leather upholstery Up to 27 Lbs.* (0)
306. Litter 14 lbs. (+72)
307. Engine shielding 6 or 11 lbs. (-68)
308. Radio equipment
(a) 82 lbs. provided C.G. of instal-
lation is between (-18) and (+33)
(b) 72 lbs. provided C.G. of instal-
lation is between (-18) and (+52)
309. Special paint Up to 45 lbs. (+17)
310. Oversize generator (Eclipse D-2) 26 lbs. (-55)
311. Oversize starter 10 lbs.* (-55)
312. Miscellaneous extra instruments 25 lbs.* (-43)
313. Remote control fire extinguisher 15 lbs. (-45)
314. Tail wheel lock Neglect weight increase
315. Flares (three 1-1/2 minute) 17 lbs. (-55)
316. Extra door and wing walk 16 lbs. (+19)
317. "Y" type control column 5 lbs. (-33)
318. Propellers
(a) Controllable metal (Hamilton
Standard hub 2B20, blades 6109A
or 6135A) (105 lbs.) 54 lbs.* (-92)
(b) Adjustable metal (79 lbs.) 28 lbs.* (-92)
(c) Controllable metal (Eclipse hub
2999, blades SK-1496) (125 lbs.) 74 lbs.* (-92)
(d) Wood - fixed pitch (46 lbs.) Net decrease 5 lbs. (-92)
319. Front parachute seats 34 lbs. (-8)
320. Seaplane equipment 6 lbs.
321. Sleeping bag compartment 9 lbs.* (+72)
322. Larger battery (Reading) 51 lbs.* (-59)
323. Edo 39-4000 floats with water rudder 44 lbs.* (-13)
324. 7.50-10 wheels
325. Emergency exit in roof (rip panel) Neglect weight
326. Skis (use actual weight change)
(a) Grab and Smith or Wien GS-1
(h) Fairbanks MF-2
NOTE A. Each aircraft manufactured after 4/13/43, must, prior to original
certification, satisfactorily pass:
(a) An inspection for workmanship, materials and conformity before any
covering, metal priming or final finish is applied. All woodwork
may be varnished.
(b) A final inspection of the completed aircraft.
(c) A check of the flight characteristics.
NOTE 1. Eligible for export as follows subject to inspection for equipment
specified in Chapter XII of Inspection Handbook:
(a) Canada
- Landplane
- skiplane - not eligible. However, structure complies with Canadian
requirements for ski installation when special axle per Waco Drawing
20243 is installed. Maximum ski height 13 inches, tread 85-1/2
inches. Maximum standard weight as noted for Landplane.
- Seaplane - maximum standard weight:
With Edo 38-3430 floats 3430 lbs.; with Edo 39-4000 floats 3800 lbs.
(b) All other countries except Australia and New Zealand
NOTE 2. Same as Model DQC-6, ATC 597, except engine and engine mount, and
battery location.
II - MODEL YQC-6, DESIGNATION 5 PCLB
Engine Jacobs L-4 (battery ignition), L-4M (magneto ignition)
or L-4MB (magneto and battery ignition)
Placard limits For all operations, 2000 rpm (225 hp)
Standard weight 3500 lbs.
III - MODEL ZQC-6 (UC-72H), DESIGNATION 5 PCL-SB
(Same as Model YQC-6 except engine)
Engine Jacobs L-S (battery ignition), L-5M (magneto ignition),
or L-5MB (battery and magneto ignition)
Placard limits For all operations, 2000 rpm (285 hp)
Standard weight Landplane:
3500 lbs. (serials below 4700)
3650 lbs. (serials below 4700 and up - Serials
below 4700 eligible upon receipt of manufacturer's
affidavit of conformity.
Seaplane:
3610 lbs. (with Edo 38-3430 floats)
3800 lbs. (Serials 4700 and up with Edo 39-4000)
floats - Serials below 4700 with 39-4000
eligible when fuselage member 29 reinforced
in accordance with Waco Drawing SK-404.)
IV - MODEL AQC-6, DESIGNATION 4 or 5 PCL-SB
Engine Jacobs L-6 (battery ignition), L-6M (magneto ignition),
or L-6MB (magneto and battery ignition)
Placard limits Maximum, except take-off
(S.L.) 24.5 in.Hg., 2100 rpm (300 hp)
(Straight line manifold pressure variation with
altitude to 3700 ft.)
23.5 in.Hg., 2100 rpm (300 hp)
Take-off (one minute)
26.0 in.Hg., 2200 rpm (330 hp)
Standard weight Landplane:
3500 lbs. (Serials below 4700)
3650 lbs. (Serials 4700 and up - Serials below
4700 eligible upon receipt of manufacturer's
affidavit of conformity.)
Seaplane:
3610 lbs. (with Edo 38-3430 floats)
3800 lbs. (Serials 4700 and up with Edo 39-4000
floats. Serials below 4700 with 39-4000 floats
eligible when fuselage member 29 reinforced in
accordance with Waco Drawing SK-404.)