DeHavilland DHC-3 Turbo Otter_EA

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I found a problem with the prop placement that I could not overlook so I fixed it. It is still the same physics only with a better KEX

The de Havilland Canada DHC-3 Otter is a single-engined, high-wing, propeller-driven, short take-off and landing (STOL) aircraft developed by de Havilland Canada. It was conceived to be capable of performing the same roles as the earlier and highly successful Beaver, but was overall a larger aircraft.

When de Havilland Canada began design work on the "King Beaver" (the Otter's original name) in January 1951, it was trying to extend the company's line of rugged STOL utility transports that had begun with the Beaver. The single-engined, high-wing, propeller-driven DHC-3 Otter was conceived to be capable of performing the same roles as the Beaver, but was considerably larger, the veritable "one-ton truck" (in company parlance, the Beaver was the "half-ton truck"). Using the same overall configuration as the earlier and highly successful DHC-2 Beaver, the new design incorporates a longer fuselage, greater-span wings, a cruciform tail, and is much heavier. Seating in the main cabin is for 10 or 11, whereas the Beaver can seat six. Power is supplied by a 450-kW (600 hp) Pratt & Whitney R-1340 geared radial. The version used in the Otter was geared for lower propeller revolutions and consequently lower airspeed. The electrical system was 28 volts D.C. Like the Beaver, the Otter can be fitted with skis or floats.


Stolairus Aviation of Kelowna, BC, has developed several modifications for the DHC-3 including a STOL Kit, which modifies the wing with a contoured leading edge and drooped wingtips for increased performance. Stolairus has also developed a 400 lb "upgross" kit which increases the gross weight of the DHC-3 to 8,367 lbs on floats.

Some aircraft were converted to turbine power using a Pratt & Whitney Canada PT6A, Walter 601 (manufactured in the Czech Republic), or Garrett/Honeywell TPE331-10, by Texas Turbine Conversions. The Walter M601E-11 Turbine Engine conversion is manufactured and installed by Stolairus Aviation.

Length: 41 ft 10 in (12.80 m)
Wingspan: 58 ft 0 in (17.69 m)
Height: 12 ft 7 in (3.83 m)
Wing area: 375 sq ft (34.84 m²)
Empty weight: 4,431 lb (2,010 kg)
Max. takeoff weight: 8,000 lb (3,629 kg)

Maximum speed: 160 mph (139 knots, 257 km/h)
Cruise speed: 121 mph (105 knots, 195 km/h) at sea level (econ cruise)
Stall speed: 58 mph (50 knots, 93 km/h)
Range: 945 mi (822 nmi, 1,520 km)
Service ceiling: 18,800 ft (5,730 m)
Rate of climb: 850 ft/min (4.3 m/s)