Piper M600

Overview

The Piper M600 is the mid-tier of the PA-46 turboprop line, introduced in 2017 as a significant step up from the M500 it replaced in production. The most consequential change was fuel capacity: the M600 carries 260 gallons versus the M500’s 170, extending range from 1,000 NM to 1,484 NM and transforming the aircraft’s mission profile from regional to genuinely transcontinental. The M600’s arrival also brought the Garmin G3000 avionics suite, a meaningful upgrade from the M500’s G1000 NXi, with a wider display format and expanded automation capability.

The M600/SLS variant, introduced in 2020, added the HALO safety system: Garmin’s Emergency Autoland, which can autonomously land the aircraft at a suitable airport in the event of pilot incapacitation. This was the first implementation of certified Emergency Autoland in a production aircraft, and it set a new baseline for safety technology in owner-flown turboprops. The M600 is powered by the same Pratt and Whitney PT6A-42A as the M500, flat-rated to 600 SHP in this installation, and can cruise at 274 knots at FL300.

Key Features for GA Buyers

Emergency Autoland (HALO). The M600/SLS was the first certified production aircraft with autonomous emergency landing capability. In the event of pilot incapacitation, the system selects a suitable airport, manages ATC communications via data link, flies the approach, and lands the aircraft without pilot input. For buyers with family passengers or concerns about single-pilot operations, this is a substantive safety argument, not a marketing feature.

Fuel Capacity and Range. 260 gallons enables 1,484 NM of range, a 48% improvement over the M500. This changes what the aircraft can do: New York to Denver, Chicago to Miami, or Los Angeles to Denver nonstop become realistic single-leg missions. The fuel load also provides meaningful reserve flexibility that the M500’s smaller tanks do not.

Garmin G3000 Avionics. The G3000’s widescreen touchscreen displays and expanded automation represent a meaningful step over the M500’s G1000 NXi. The autothrottle capability in particular reduces workload in the cruise and descent phases that typically demand close attention in the M500.

Useful Load. At 2,135 lb, the M600’s useful load is 437 lb more than the M500’s. Even with full fuel (260 gal / approximately 1,768 lb of Jet-A), the M600 retains 367 lb for cabin payload: enough for two adults and bags. Reduced fuel loads open the cabin substantially.

Trade-offs

• Fuel Burn. At 39 GPH in long-range cruise, the M600 burns more fuel than the M500 and operating costs reflect this. The additional range and useful load must be weighed against meaningfully higher annual fuel expenditure for owners whose missions do not require the M600’s extended legs.
• Acquisition Cost. The M600 carries a significant price premium over the M500 both new and used. Buyers who do not regularly fly the legs that justify 260 gallons of fuel capacity may find the M500 a better value proposition.
• Cabin Dimensions. Despite the higher acquisition cost, the M600 shares the PA-46 cabin with the M500: six seats in a relatively narrow fuselage. Buyers expecting a larger interior than the M500 will be disappointed. The upgrade is in systems and fuel, not cabin volume.
• Training and Insurance Requirements. Like all PA-46 turboprop variants, the M600 requires a type rating and structured recurrent training. Insurance underwriters typically require specific M600 time and training credentials, adding fixed overhead to total cost of ownership.

See Also

• Piper M350 – the pressurized piston entry point to the PA-46 family: lower acquisition cost, lower fuel burn, shorter legs. Compare
• Piper M500 – the turboprop predecessor the M600 replaced: same engine, less fuel, less range, lower cost. Compare
• Piper M700 – the performance step-up: 700 SHP, 301-knot cruise, and the full HALO suite as standard from the start. Compare
• Pilatus PC-12 – the cross-manufacturer benchmark: larger cabin, more utility payload, different mission character. Compare
• Socata TBM-850 – the speed-oriented single-engine turboprop alternative: 320-knot cruise at a comparable price point. Compare