Beechcraft King Air 90 vs Piper M600
The Piper M600 (single-engine turboprop, ~274 kt, Garmin G3000) and Beechcraft King Air 90 (twin-engine turboprop, ~250 kt) are different-propulsion turboprops — single vs twin.
Full Specs Comparison
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| Spec / Model | Beechcraft King Air 90 | Piper M600 |
|---|---|---|
|
|
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| Price Range | $229,000 – $3,699,000 | $2,179,000 – $4,414,112 |
| Category | Multi Engine Turboprop | Single Engine Turboprop |
| Model Specifications | ||
| Seats | 10 | 6 |
| Cruise Speed | 215 kts (398 km/h) | 260 kts (482 km/h) |
| Range | 1,060 nm (1,963 km) | 1,484 nm (2,748 km) |
| Service Ceiling | — | 30,000 ft (9,144 m) |
| Max Gross Weight | — | 6,000 lbs (2,722 kg) |
| Useful Load | 2,700 lbs (1,225 kg) | 1,822 lbs (826 kg) |
| Fuel Capacity | — | 260.0 gal (984 L) |
| Fuel Burn | — | 40.0 GPH (151 L/h) |
| TBO | — | 3,500 hrs |
| Overhaul Cost | — | $350,000 |
| Annual Fixed | — | $120,000 |
| Hourly Variable | — | $750 |
| Engines | 2 x Turboprop | 1 x Turboprop |
Cost of Ownership
EstimateBeechcraft King Air 90
Piper M600
Fuel$220/hr
Variable$750/hr
Annual Fixed$120,000/yr
Total (200 hrs/yr)
$270,000/yr
Which Should You Buy: Beechcraft King Air 90 or Piper M600?
Bottom line: Choose the M600 for the modern Garmin G3000 cockpit, single-engine economics and higher cruise. Step up to the King Air 90 only when twin-engine redundancy and the larger King Air cabin matter more than the M600's efficiency and modern systems.
Pick the King Air 90 if…
- Budget matters — from $229,000 vs $2,179,000, you save ~$1,950,000.
- More seats — 10 vs 6.
- More inventory — 122 listings vs 30.
Pick the M600 if…
- Faster cruise — 260 kts vs 215 kts.
- Longer range — 1484 nm vs 1060 nm.
- Newer design — production from 2016 vs 1966.
Auto-generated from current market data and published specs. Confirm with a pre-buy inspection and professional appraisal.
Frequently Asked Questions
Which is better, Beechcraft King Air 90 or Piper M600?
It depends on your mission and budget.
The King Air 90 cruises at 215 kts with 1,060 nm range.
The M600 cruises at 260 kts with 1,484 nm range.
Review the specs table above to find which fits your flying profile.
How do prices compare?
Piper M600: from $3,250,000.
Prices vary by year, hours, avionics, and condition. Always get a pre-buy inspection.
What's the difference between Beechcraft King Air 90 and Piper M600?
King Air 90 engine: Pratt & Whitney PT6A-6.
Seats: 10 vs 6.
Cruise: 215 vs 260 kts.
Range: 1060 vs 1484 nm.
Which is cheaper to operate per hour?
M600: about $750/hr variable cost.
Variable cost includes fuel, reserves and overhaul accruals. Annual fixed costs (hangar, insurance, annual inspection) add to the total.
Which has more seats and useful load?
King Air 90: 10 seats / 2,700 lb useful load.
M600: 6 seats / 1,822 lb useful load.
Useful load = max gross weight minus empty weight; it determines how much fuel plus payload you can carry.
How does maintenance compare — TBO and overhaul cost?
M600: 3,500-hour TBO, overhaul ~$350,000.
Reaching the time-between-overhaul (TBO) triggers a mandatory engine/airframe rebuild that affects resale value.
Disclaimer: All prices and cost estimates are from third-party sources for informational purposes only. Always obtain professional appraisal and inspection before purchase.
Prices updated daily · Data: FAA Registry, NTSB · About our data