Models

Model 520 (6A1)

The 520 was first certified on January 31, 1952. It was very similar to L-3805 except for an increase in gross weight from 4600 pounds to 5500 pounds and the engines were changed to Lycoming GO 435-C2B (260HP). In 1954 the gross weight was increased to 5700 pounds with some structural changes made.

Early in May 1951 due to the inherent stability, and great ease of control under single engine operation of the Aero Commander aircraft the company decided to perform a daring feat never successfully accomplished by a twin-engine aircraft. On May 8^th, 1951, a Aero Commander prototype aircraft fully loaded to max gross weight, the LH propeller removed and stowed in the cabin took-off from Oklahoma City using the right hand engine only and flew non-stop to Washington DC to the accolades of the aviation world.

Specification Performance Kit Finder

520

Specifications

Dimensions

Wing span	44.0'	13.41m
Length	34.25′	10.43m
Height	14.45′	4.40m
Tread	12.4′	3.77m
Cabin Door (Aft)	x.xx' x x.xx'	.xxm x x.xx
Cabin Door (Fwd)	x.xx' x x.xx'	.xxm x x.xx
Cabin Height (Inside Interior)	x.xx′	x.xxm
Cabin Length	xx.xx′ xx	x.xxm
Cabin Width (Inside Interior)	x.xx′ xx	1.xxm
Cabin Volume	146 ft³	44.5m³
Baggage compartment height	x.xx′ xx	x.xxm
Baggage compartment width	x.xx′	x.xxm
Baggage compartment length	x.xx′	.78m
Baggage compartment volume	32 ft³	9.75m³
Baggage door height	x.xx′ xx	.58m
Baggage door width	x.xx′ xx	.xxm
Baggage compartment load limit	xx lbs	xx kg

520

Propellers

Numerous Hartzell HC (2 blades)

Power Plant

Lycoming GO435-C2 / -C2B / -C2B1

Weights - Aircraft

Ramp Weight:	5500/5700 lbs./2495/2585 Kg
Take-off Weight:	5500/5700 lbs./2495/2585 Kg
Landing Weight:	x,xxx lbs/x,xxx kg
Standard Empty Weight:	3640/3800 lbs./1633/1724 Kg
Useful Load:	1700/1900 lbs./771/862 Kg
Zero Fuel Weight:	x,xxx lbs/x,xxx kg
Baggage:	xxx lbs/xxx kg

520

Performance

Operating Speed

Cruise Speed (@ 70% power @ 10,000 Ft)	197 MPH / 171 KTS
High Speed (Rated Power S.L.)	211 MPH / 183 KTS
Maximum Cruise
(100% 12,000 ft.TAS@ 10,325 lbs/4,683 kg)	xxxmph/xxxkts
Normal Cruise Speed
(96%20,000 ft.TAS@ 10,325 lbs/4,683 kg):	xxxmph/xxxkts
Twin Engine Best Rate of Climb Speed (CAS):	xxxmph/xxxkts
Twin Engine Best Angle of Climb Speed (CAS):	xxxmph/xxxkts
Single Engine Best Rate of Climb Speed (CAS):	xxxmph/xxxkts
Single Engine Best Angle of Climb Speed (CAS):	xxxmph/xxxkts
Minimum Control Speed (CAS):	xxmph/xxkts
Stall Speed, Clean (CAS):	67 MPH / 58 KTS
Stall Speed, Gear and Flaps Down (CAS):	xxmph/xxkts
Range (@ 60% power, 30 Min Reserve)	1150 SM / 999 NM

Cruising Ranges