WACO AIRCRAFT COMPANY
MODELS: Waco UMF, 3 POLB
T.C. NUMBER: ATC 546
Engine Continental R-670 210 hp
Fuel 50 gallons (two 25 gallon tanks in center section)
Oil 4 gallons
No. passengers 2
Baggage 98 lbs. (front 23 lbs., rear 75 lbs.)
Standard weight 2500 lbs.
Specification basis Approved Type Certificate No. 546
Serial numbers 3836 and up manufactured prior to 9/30/39 eligible.
Approval expired as of that date.
EQUIPMENT:
(*Means net increase)
Class I:
Engine ring cowl 23 lbs.; battery (Hot Shot) 10 lbs.; starter (electric
or Heywood) 30 lbs.; 6.50-10 wheels with 7.50-10 tires (wheels must be
placarded for these tires); 8 inch streamline tail wheel or skid;
propeller - wooden 42 lbs.
Class III:
Wheel streamline 24 lbs.; radio ; (Lear 26 lbs. or (Westport) 30 lbs.;
shielding 6 lbs.; landing lights 11 lbs,; battery 42 lbs.; three 1-1/2 minute
or five 1 minute flares 17 lbs.; starter (hand inertia) 20 lbs.; propeller
adjustable metal 37 lbs.*; 12-1/2 gallon fuel tank in wing (use actual weight);
leather upholstery, miscellaneous equipment such as Sperry Gyro 7 lbs. and
Horizon 8 lbs.; cockpit heater; 15 gallon fuel tank in forward part of the
fuselage 10 lbs.; engine crankcase cooling disc (mounted on forward part of
engine crankcase) 3 lbs.