1973 Commander 500 SMulti-Engine Piston Aircraft • Tucson, AZ, USA
This 1973 Aero Commander 500 S (N500HM) represents a rare opportunity to acquire one of only 13 known Merlyn 350 STC conversions, transforming this twin-engine piston aircraft into a high-performance platform with exceptional capabilities. The conversion includes TIO-540-J2B(D) engines producing 350 HP each, paired with unique four-blade propellers optimized for high-altitude efficiency. With 6,095 hours total time, the airframe benefits from recent maintenance including a wing spar inspection completed with no issues (next due April 2028), and engines showing 1,269 and 1,282 hours SMOH respectively. The STC increases gross weight to 8,800...
- Year
- 1973
- Make
- Commander
- Series
- 500
- Model
- 500 S
- Tail #
- N500HM
- Serial #
- 3155
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Specifications
- Category
- Multi-Engine Piston
- Intended Use
- Business, Aerial Surveying
- Flight Rules
- VFR
- Useful Load
- 3,180 lbs
- Seats
- 3
Hours, Logs & Inspections
- Total Time
- 6,095 hrs
- Engine 1 Time
- 1,269 hrs (SMOH)
- Engine 2 Time
- 1,282 hrs (SMOH)
- Prop 1 Time
- 1,269 hrs (SMOH)
- Prop 2 Time
- 1,282 hrs (SMOH)
Avionics
EMS/EIS
Insight G4 - Twin Engine Monitor
ADS-B Out
Garmin GTX - ADS-B In/Out Transponder
fuelFlow
Shadin - Fuel Flow Totalizer
Additional Equipment
Exterior Lighting
LED Exterior Lighting
Air Conditioning
JB Air Conditioning
Aerial Survey Equipment
Aerial Survey Camera Hole 25x22" 160A Aerial Survey Sensor Power availability
Interior & Exterior
- Interior Notes
- Full interior with bench seat can be installed with the structural plug for the camera hole so it can be flown as a passenger only airplane if desired.
Engine & Propeller
- Engine Type
- Piston
- Engine Count
- 2
- Engine Model
- TIO-540-J2B(D)
- Engine Power
- 350 HP
Asking Price
$325,000
Aircraft Location
Tucson, AZ, USA
Listing Details
- Used
- For Sale
Price History
Jul 1, 2025: $325,000 - trade-a-plane
Contact Seller
Asking Price
$325,000
Aircraft Location
Tucson, AZ, USA
Listing Details
- Used
- For Sale
Price History
Jul 1, 2025: $325,000 - trade-a-plane
Contact Seller
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Looking for more Commander 500s?
Find the perfect Commander 500 for you. Browse over 5,000 aircraft for sale and filter by specifications, avionics, useful load, and more...
Looking for more Commander 500s?
Find the perfect Commander 500 for you. Browse over 5,000 aircraft for sale and filter by specifications, avionics, useful load, and more...
Asking Price
$325,000