Power Settings/Weights/Speeds/Flaps

POWER SETTINGS
Pre-Take off	3400 RPM Check
Rollout		3200 RPM
Climb		3000 RPM up to 3200 RPM
Normal cruise	3000 RPM
Alternate cruise 2800 RPM
economy cruise   2600 RPM @ 22" Fuel Consumption = 13.5 GPH

MAX WEIGHT      5700 Pounds
TAKE-OFF        20     10     0    Use +6 Trim
V1 = VR         78      85      -     Begin rotate at 60mph
V2              84      92      114
VFRI            108     108     -
VCLIMB          -       -       124
 
LANDING 	40     30     20     0
VAPP (1,3 VS)   86      94      103     128

 
MODEL 520
Price.................No. 1 to 39 $45,000 No. 40 & up $66,000
Years Built...................................... 1951 - 1954
Serial No. Range......................................1 - 150
Total Built...............................................150
Power Plant...............................Lycoming GO-435-C2B
  Rating.....................................260hp @ 3400 RPM
  Fuel, octane - capacity (Gal)...................91/96 - 145
  Fuel Consumption GPH (Econo cruise)....................13.5
Propeller..........................90" 2&3-blade, 84" 3-blade
Weight (lb), empty - gross........................3800 - 5700

Dimensions :
  Wing span (Inches) - area (Sq ft)............528.75 - 242.5
  Fuselage length - height (Inches).............410.5 - 168.5
  Volume, cabin - baggage area (Cubic feet)..........146 - 32
  Seats ................................................5 - 7
Performance:
  Takeoff over 50' obstacle...............................950
  Landing over 50' obstacle...............................860
  Service ceiling (feet)...............................24,000
  Single-engine ceiling.................................8,700
  Maximum range (statute miles).........................1,150
  Cruising speed (70% @10,000 ft).........................197
  Takeoff - landing speed.............................82 - 77
  Best rate-of-climb......................................140
