De Havilland DHC-3 Otter vs De Havilland DHC-6 Twin Otter

The de Havilland DHC-6 Twin Otter and DHC-3 Otter are STOL utility classics — the Otter is the big single-engine bush hauler; the Twin Otter is the twin-engine 19-seat STOL workhorse (now back in production as the Series 400) with float/ski/wheel versatility.

Safety Record

Absolute counts scale with fleet size — the most-produced types log more events without being less safe. Compare the % fatal.

NTSB (1982–now)De Havilland DHC-3 OtterDe Havilland DHC-6 Twin Otter
All events2
Serious1
Fatal1
Fatalities0
% Fatal50%

Full Specs Comparison

Swipe to see all specs
Spec / Model De Havilland DHC-3 Otter De Havilland DHC-6 Twin Otter
Price Range
Category
Model Specifications
Seats 19
Cruise Speed 120 kts (222 km/h) 182 kts (337 km/h)
Range 830 nm (1,537 km) 799 nm (1,480 km)
Max Gross Weight 8,000 lbs (3,629 kg) 12,500 lbs (5,670 kg)

Which Should You Buy: De Havilland DHC-3 Otter or De Havilland DHC-6 Twin Otter?

Bottom line: Choose the Twin Otter for twin-engine redundancy, more seats and the broadest commuter/float/remote-ops capability — the segment standard. Choose the single Otter for a lower-cost big-single bush hauler, especially turbine-converted, when twin redundancy isn't required.

Pick the DHC-3 Otter if…

  • Longer range — 830 nm vs 799 nm.

Pick the DHC-6 Twin Otter if…

  • Faster cruise — 182 kts vs 120 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, De Havilland DHC-3 Otter or De Havilland DHC-6 Twin Otter?
It depends on your mission and budget. The DHC-3 Otter cruises at 120 kts with 830 nm range. The DHC-6 Twin Otter cruises at 182 kts with 799 nm range. Review the specs table above to find which fits your flying profile.
How do prices compare?
Prices vary by year, hours, avionics, and condition. Always get a pre-buy inspection.
What's the difference between De Havilland DHC-3 Otter and De Havilland DHC-6 Twin Otter?
Cruise: 120 vs 182 kts. Range: 830 vs 799 nm.
Which is cheaper to operate per hour?
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?
DHC-6 Twin Otter: 19 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?
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