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1979 MOONEY M20K 231
Starts from the median asking price of 17 comparable Mooney M20K 231 listings ($149,000), then adjusts for:
- Year -1 vs comparable listings -1.5%
- Airframe time +493 hr vs comps -1.0%
- Engine time +64 hr vs comps -0.5%
- Modern GPS navigator (47% of comps) +2.5%
- ADS-B (71% of comps) +0.8%
Shown as a range. An estimate from asking-price comparables and FAA supply data — not an appraisal.
Overview
| Make / Model | Mooney M20K 231 |
|---|---|
| Type | Single-Engine Piston |
| Airframe time | 3,818 hrs |
| Engine time | 1,186 SMOH |
| Prop blades | 2 |
| Avionics / GPS | Garmin GNS 430 |
| Avionics / Transponder | Garmin GTX 330ES |
| Avionics / Nav / com radio | Garmin SL30 |
| Avionics / GPS / datalink | GARMIN GPS-696 |
| Avionics / GPS / nav | GNS 430W |
| Avionics / Autopilot | Century 41 |
| ADS-B | Yes |
| Airworthy | Yes |
Description
**1979 Mooney M20K 231 – C-GMKZ** A well-equipped 1979 Mooney M20K 231 offering the speed, efficiency, and high-altitude capability that has made the turbocharged Mooney a popular choice for serious cross-country flying. Powered by the turbocharged, fuel-injected Continental TSIO-360 six-cylinder engine, C-GMKZ has approximately **1,186 hours SMOH** and only **65 hours since top overhaul**. The aircraft is equipped with a two-blade heated constant-speed propeller, built-in oxygen system, electric retractable landing gear, and 72 gallons of usable fuel. The M20K 231 combines excellent cruise performance with Mooney’s famously efficient airframe. Its laminar-flow wing and direct torque-tube flight controls provide responsive handling while allowing owners to cover considerable distances without the fuel consumption associated with larger high-performance singles. C-GMKZ is also well equipped for IFR and cross-country operations. The panel features a **Garmin GNS 430W WAAS GPS/Nav/Com**, Garmin SL30, GTX 330ES Mode S transponder with ADS-B Out, Century 41 autopilot, and an Edo-Aire Mitchell primary HSI. A Garmin GPSMAP 696 coupled with the 430W provides additional navigation capability, complemented by Garmin GXM40 XM Weather. Additional equipment includes a PMA8000B audio panel, King DME and ADF, ACK 406 MHz ELT, and an EI UBG-16 engine analyzer. The windscreen has also been upgraded with thicker replacement glass. For a pilot looking for an efficient step-up aircraft with turbocharged performance, retractable gear, onboard oxygen, capable IFR avionics, and excellent cross-country capability, **C-GMKZ represents a compelling Mooney 231 opportunity.** **Highlights:** - Continental TSIO-360 turbocharged, fuel-injected engine - 1,186 hours SMOH - Only 65 hours since top overhaul - Two-blade heated constant-speed propeller - Built-in oxygen system - Electric retractable landing gear - 72 gallons usable fuel - Garmin GNS 430W WAAS - Garmin SL30 Nav/Com - Garmin GTX 330ES Mode S / ADS-B Out - Century 41 Autopilot - Garmin GPSMAP 696 - Garmin GXM40 XM Weather - PMA8000B Audio Panel - Primary HSI - King DME and ADF - EI UBG-16 Engine Analyzer - ACK 406 MHz ELT - Upgraded thicker windscreen
Avionics
Garmin GNS 430W Garmin GTX 330 ES Mode S Transponder ADS-B Out Garmin SL 30 Century 41 Autopilot Garmin GPS 696, coupled to 430W Garmin GXM40 XM Weather PMA8000B Audio Control Edo-Aire Mitchell primary HSI King ADF King DME ACK 406 ELT EI UBG-16 Engine Analyzer
Recommended avionics upgrades
A GNS 430 upgrades naturally to the GTN 650Xi — same footprint, touchscreen GPS/nav/comm with LPV approaches.
See prices & suppliers ›Suggestions are based on the panel described in this listing; verify STC approval for this make/model before any installation.
Service Difficulty Reports (SDRs)
Checking FAA service difficulty reports…
Airworthiness Directives (ADs)
Checking airworthiness directives…
How this aircraft compares
Where this Mooney M20K 231 lands versus other Mooney M20K 231 listings on fyiAero.
Price
35th pct$120k · 35th percentile of 17 listings
Airframe time
62nd pct3,818 hours total (TTAF) · 62nd percentile of 16 listings
Engine time
69th pct1,186 hours since major overhaul · 69th percentile of 16 listings
Percentile = share of comparable listings at or below this value. Lower airframe/engine hours are generally fresher; price reflects the asking price only.
General
| Year | 1979 |
|---|---|
| Manufacturer | MOONEY |
| Model | M20K 231 |
| Serial Number | 25-0280 |
| Registration # | C-GMKZ |
| Condition | Used |
| FlightRules | IFR |
Airframe
| Total Time | 3,818 |
|---|---|
| Max Takeoff Weight | 2,899.08 lb |
| Complete Logs | Yes |
Engine
| Engine 1 Make/Model | CONTINENTAL TSIO360A |
|---|---|
| Engine Horsepower | 210 HP |
| Engine 1 Time | 1,186 SMOH |
| Engine TBO | 1800 |
| Turbocharged | Yes |
Props
| Number of Blades | 2 |
|---|
Avionics
| ADS-B Equipped | Yes |
|---|---|
| WAAS | Yes |
| Avionics/Radios | Garmin GNS 430W Garmin GTX 330 ES Mode S Transponder ADS-B Out Garmin SL 30 Century 41 Autopilot Garmin GPS 696, coupled to 430W Garmin GXM40 XM Weather PMA8000B Audio Control Edo-Aire Mitchell primary HSI King ADF King DME ACK 406 ELT EI UBG-16 Engine Analyzer |
Additional Equipment
| Oxygen System | Yes |
|---|
Inspection Status
| Airworthy | Yes |
|---|
Operating costs & specifications — Mooney M20K 231
Typical model-level figures for the Mooney M20K 231 (not this specific airframe).
Performance & dimensions
| Range | 980 nm |
|---|---|
| Cruise speed | 191 kts · 220 mph |
| Takeoff / landing | 1220.0 / 1147.0 |
About this plane
Single engine piston aircraft with retractable landing gear. The M20K 231 seats up to 3 passengers plus 1 pilot.
Range from base
Still-air range ring — type an aircraft to change it. Compare aircraft on the Range tool ›
Last flight
Actual flight path from FlightAware for C-GMKZ. More flight tracking ›
