WACO AIRCRAFT COMPANY
MODEL: Waco YPF, YPF-6, YPF-7, ZPF-6, ZPF-7
T.C. NUMBER: ATC 586
I - SPECIFICATIONS PERTINENT TO ALL MODELS
Placard speeds Level flight or climb - 158 mph True Ind.
Glide or dive - 214 mph True Ind.
Propeller Maximum permissible diameter 99 inches
Fuel capacity 50 gallons (two tanks in center section at 25 gallons)
(-13)
Oil capacity 4 gallons (-50)
No. passengers 2 (-4)
Baggage 100 lbs. aft rear cockpit (+69)
25 lbs. forward of front cockpit (-23)
Standard weight Landplane 2650 lbs.
Seaplane 2880 lbs.
C.G. limits Landplane (-12.6) and (-4.0)
Seaplane (-14.2) and (-2.8)
Datum Lower wing leading edge
Leveling means Lower surface upper wing at strut points
Specification basis Approved Type Certificate No. 586
Serial numbers 4250 and up (6 series) and 4650 and up (7 series)
manufactured prior to 2/28/41 eligible. Approval
expired as of that date.
EQUIPMENT:
(* Means net increase)
Class I:
Landplane:
101. Engine ring cowl (See NOTE 3) 28 lbs.
102. Starter (Eclipse E-80) 20 lbs.
103. Battery (Reading ARL-11) 35 lbs.
104. 6.50-10 (Hayes 650M) or 7.50-10 (Hayes
7. 50M) wheels and 7.50-10 tires
105. 10-1.2 inch streamline tail wheel
106. Generator
(a) Bosch LE-70/12B5 (Y series) 13 lbs. (-47)
(b) Eclipse LV-180 (Z series) 18 lbs. (-47)
107. Propeller - fixed metal (Curtiss 55501) 55 lbs. (-77)
Seaplane (Z series only): Items 101, 102, 103, 106, and 107 PLUS
151. Edo 45-2880 floats with water rudders Approximately 237 lbs.*
Class II:
200. Miscellaneous items as noted in
approved weight and balance report
201. Miscellaneous extra instruments Maximum 25 lbs. (-21)
Class III:
301. Wheel Streamlines
(a) Pants 25 lbs. (-23)
(b) Cuffs 4 lbs. (-23)
302. Landing lights
(Grimes retractable) 11 lbs.*
303. Flares (three 1-1/2 minute) 17 lbs.* (+100)
304. One or two extra 12-1/2 gallon fuel
tank in upper wing Each 15 lbs.* (-13)
305. 4-3/4 gallon oil tank No weight change
306. Miscellaneous extra instruments Maximum 25 lbs. (+15)
307. Starter
(a) Hand inertia 2 lbs.* (-47)
(b) Eclipse F-141 10 lbs.* (-47)
308. Generator
(a) Eclipse LV-180 (Y series) 5 lbs.* (-47)
(b) Eclipse G-2
(Y series) 8 lbs.* (-47)
(Z series) 3 lbs.* (-47)
(c) Eclipse D-2
(Y series) 13 lbs.* (-47)
(Z series) 8 lbs.* (-47)
309. Shielding 11 lbs. (-60)
310. Adjustable single front seat 7 lbs.* (-4)
311. Front cockpit cover 6 lbs.* (-4)
312. 8.50-10 tires 5 lbs.* (-18)
313. Cactus proof tubes 10 lbs. (-18)
314. Coupe top 15 lbs.* (+42)
315. Propellers (-77)
(a) Wood
(Y series) Net decrease 9 lbs.
(Z series) Net decrease 12 lbs.
(b) Adjustable metal
(Y series) 27 lbs.*
(Z series) 23 lbs.*
316. Special paint
317. Tail wheel lock
318. Parachute or parachute type seats
319. Leather upholstering
320. Radio (Seaplane only) 70 lbs. provided
C.G. of installation is between upper
wing leading edge and baggage compart-
ment .
NOTE 1. Eligible for export as follows, subject to inspection for equipment
specified in Chapter XII of Inspection Handbook (7/12/37)
(a) Canada
- Landplane
- Skiplane - not eligible.
- Seaplane - not eligible.
(b) All other countries except Great Britain and Australia.
NOTE 2. 7 series same as 6 series except for brake system and miscellaneous
structural changes. YPF-6 same as YPF.
NOTE 3. Model YPF-7, serial numbers 5320 and up, also eligible with upper wing
center section output enlarged, upper wing dihedral eliminated, wide type
landing gear (tread 100-3/4 inches), minor structural changes and without
ring cowl (Item 101).
NOTE 4. Models YPF-6 and ZPF-6 eligible for use in acrobatic stages of Civilian
Pilot Training secondary course when operated in accordance with "Instructions
for the operation of Waco YPF-6 (or ZPF-6) in the acrobatic stages of the
Civilian Pilot Training Program Secondary Course" issued by Civilian Pilot
Training.
II - MODELS YPF, YPF-6 and YPF-7, DESIGNATION 3 POLB
Engine Jacobs L-4, L-4M (magneto ignition) or L-4MB (magneto
and battery ignition)
Placard limits Maximum, except take-off
-- in.Hg., 2000 rpm (225 hp)
Take-off (one minute)
-- in.Hg., 2000 rpm (225 hp)
III - MODELS ZPF-6 AND ZPF-7, DESIGNATION 3 POL-SB
(Same as Models YPF-6 and YPF-7 except engine installation. Empty weight approx-
imately 35 lbs. greater.)
Engine Jacobs L-5, L-5M, (magneto ignition) or L-5MB (magneto
and battery ignition)
Placard limits Maximum, except take-off
-- in.Hg., 2000 rpm (285 hp)
Take-off (one minute)
-- in.Hg., 2000 rpm (285 hp)