This 1966 Mooney M20C Mark 21/Ranger Is a Modernized ‘AircraftForSale’ Top Pick

Classic speedster features a completely updated panel for enhanced situational awareness and IFR capability.

FLYING Staff

Tuesday, October 14, 2025 at 10:09 AM ET

Verified

Edited By:

Travis Tingle

1966 Mooney M20C Mark 21/Ranger [Courtesy: Hiller Aviation]

Key Takeaways:

The article features a 1966 Mooney M20C Mark/21 Ranger as "Today's Top Pick" for its blend of classic speed and efficiency with modern capabilities, making it suitable for cross-country flights.
It boasts a recently overhauled Lycoming O-360 engine with only 180 hours SMOH, a Power Flow exhaust for a brisk 155-knot cruise at 10 gph, and an airframe with useful upgrades like corrosion treatment and an extended-range fuel tank.
The aircraft is equipped with a modern Garmin avionics suite, including a Garmin 430W WAAS GPS and ADS-B In/Out, making it a capable IFR platform.
Listed at $109,000, this Mooney offers a compelling package of performance and updated technology within a classic airframe.

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Every day, the team at Aircraft For Sale chooses an airplane that catches our attention because it is unique, a good deal, or has other qualities we find interesting. You can read Aircraft For Sale: Today’s Top Pick at FLYINGMag.com daily.

Today’s Top Pick is a 1966 Mooney M20C Mark/21 Ranger.

This 1966 Mooney M20C Mark 21/Ranger blends the power of classic speed and efficiency with modern capabilities, providing operators an excellent choice. With its renowned performance and thoughtful upgrades, the aircraft is well suited for cross-country flying and building time in a high-performance single.

This Mooney is powered by a Lycoming O-360 engine with only 180 hours since a major overhaul in 2022, offering plenty of life for its next owner. Paired with a Power Flow exhaust, this efficient powerplant delivers a brisk 155-knot cruise speed at a fuel-sipping 10 gph. The Hartzell propeller, with just 350 hours since its own overhaul and dynamically balanced in 2022, ensures smooth and reliable performance.

The airframe, with 6,300 total hours, has been well cared for and thoughtfully upgraded. It features zinc chromate treatment for corrosion protection, a Lezar belly pan, and a 201-style windshield for improved aerodynamics.

For extended range, an O&N Aircraft Modifications bladder tank has been installed per STC. With a useful load of 858 pounds, the aircraft is ready for your next adventure. The full logbooks are available, demonstrating the care that has been put into the aircraft over the years.

1966 Mooney M20C Mark 21 / Ranger [Courtesy: Hiller Aviation]

The avionics suite is where this M20C truly shines, featuring a modern Garmin stack that makes it a capable IFR platform. A Garmin 430W provides WAAS GPS navigation, complemented by a Garmin GTR 225 nav/com and Garmin CDI. A Stratus ESG transponder handles ADS-B In and Out requirements. The pilot has excellent insight into engine health thanks to a full suite of Electronics International engine gauges and a J.P. Instruments EDM 730 engine monitor.

Listed at $109,000, this 1966 Mooney M20C Mark 21/Ranger offers a compelling package of speed, efficiency, and modern avionics. It’s an aircraft perfect for a pilot who values performance and updated technology in a classic airframe.

If you’re exploring ownership options, FLYING Finance can help get you airborne. Use our airplane loan calculator to estimate your monthly payments, or connect with an aviation finance expert at flyingfinance.com.