FREEWARE: Aero Commander 520

MODEL 520

Type Certificate:   6A1

Date Certificated:   January 31st 1952

PCLM:   5   (2 at +104, 3 at +165) Can have 6 or 7 seats with emergency exit (Drawing 5870041) and      structural provision for center seats (Drawing 5870027).

Number Built:   150

Certificated by:   Aero Design & Engineering Company
   Serial numbers 1 through 150    (150 aircraft)

Engines:   Lycoming GO-435-A2
   Serial number 1   (1 aircraft)
   Lycoming GO-435-C2
   Serial numbers 2 through 20, 22, & 24 through 38    (35 aircraft)
   Lycoming GO-435-C2B
   Serial numbers 21, 23, & 39 through 150    (114 aircraft)
   Lycoming GO-435-C2B1
      none delivered, but was used later as an up-grade
   Lycoming GO-435-C2B2
   none delivered, but was used later as an up-grade   (but not listed on T.C.D.S.)

Propellers (hub/blade):    Hartzell HC-12X20-8C/9333C-3
   Serial numbers 1 through 14 & 27    (15 aircraft)
   Hartzell HC-12X20-9C/9333C-3
      Serial numbers 15, 16, 18-20, 22, 24-26, 28-38, & 80   (21 aircraft)
   Hartzell HC-82X20-2/9333C-3
      Serial numbers 17, 21, 23, 39-69, 71-74 & 76-79   (42 aircraft)
   Hartzell HC-82X20-2A/9333C-3
      Serial numbers 70, 75, 81-88, 90-99, 101-125, 127 & 130-150    (67 aircraft)
   Hartzell HC-82X20-2C/9333C-3
      Serial numbers 89, 126, 128 & 129   (4 aircraft)
   Hartzell HC-83X20-2C/8433
      Serial number 100    (1 aircraft)

Fuel:   80/87 or 91/96 minimum grade aviation gasoline
Fuel consumption:   13.5 U.S. gallons per engine per hour at 2,600r.p.m.
Fuel capacity:   150 U.S. gallons (568 litres) total   [5 inter-connected tanks]
   145 U.S. gallons (549 litres) usable   

Oil capacity:   6.0 U.S. gallons (22.71 litres) total (3.0 gallons each engine)
   4.5 U.S. gallons (17.03 litres) usable