Robinson R66 Marine vs Md Helicopters 520N
Live Market Snapshot
Current asking-price market, aggregated across multiple marketplaces · refreshed daily
Robinson R66 Marine
- For sale now
- 5
- Source marketplaces
- 5
- Model years available
- 2015–2025
Md Helicopters 520N
- For sale now
- 2
- Source marketplaces
- 2
- Model years available
- 2001–2002
Live data from AeroGurus, aggregated daily across the used-aircraft market. Figures are current asking prices, not appraisals — confirm with a pre-buy inspection.
Full Specs Comparison
Swipe to see all specs
| Spec / Model | Robinson R66 Marine | MD Helicopters 520N |
|---|---|---|
|
|
|
| Price Range | $701,500 – $1,510,600 | $650,000 |
| Category | Single Turbine Helicopter | Single Turbine Helicopter |
| Model Specifications | ||
| Seats | 5 | 5 |
| Horsepower | 270 HP | — |
| Cruise Speed | 110 kts (204 km/h) | 125 kts (232 km/h) |
| Range | 350 nm (648 km) | 264 nm (489 km) |
| Service Ceiling | 14,000 ft (4,267 m) | — |
| Max Gross Weight | 2,700 lbs (1,225 kg) | 3,350 lbs (1,520 kg) |
| Fuel Capacity | 74.0 gal (280 L) | — |
| Fuel Burn | 23.0 GPH (87 L/h) | — |
| TBO | 2,200 hrs | — |
| Overhaul Cost | $250,000 | — |
| Annual Fixed | $42,000 | — |
| Hourly Variable | $300 | — |
| Engines | 1 x Turbine | 1 x Turbine |
Cost of Ownership
EstimateRobinson R66 Marine
Fuel$126/hr
Variable$300/hr
Annual Fixed$42,000/yr
Total (200 hrs/yr)
$102,000/yr
MD Helicopters 520N
Which Should You Buy: Robinson R66 Marine or MD Helicopters 520N?
Pick the R66 Marine if…
- Longer range — 350 nm vs 264 nm.
- Newer design — production from 2014 vs 1982.
- More inventory — 4 listings vs 2.
Pick the 520N if…
- Budget matters — from $650,000 vs $701,500, you save ~$51,500.
- Faster cruise — 125 kts vs 110 kts.
Auto-generated from current market data and published specs. Confirm with a pre-buy inspection and professional appraisal.
Frequently Asked Questions
Which is better, Robinson R66 Marine or MD Helicopters 520N?
It depends on your mission and budget.
The R66 Marine cruises at 110 kts with 350 nm range.
The 520N cruises at 125 kts with 264 nm range.
Review the specs table above to find which fits your flying profile.
How do prices compare?
Robinson R66 Marine: from $680,000.
Prices vary by year, hours, avionics, and condition. Always get a pre-buy inspection.
What's the difference between Robinson R66 Marine and MD Helicopters 520N?
R66 Marine engine: Rolls-Royce RR300 (270 hp).
Cruise: 110 vs 125 kts.
Range: 350 vs 264 nm.
Which is cheaper to operate per hour?
R66 Marine: about $300/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?
R66 Marine: 5 seats.
520N: 5 seats.
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?
R66 Marine: 2,200-hour TBO, overhaul ~$250,000.
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