DHC-1
DHC-2
DHC-3
DHC-4
DHC-5
DHC-6
DHC-7
DHC-8

de Havilland DHC-4 Caribou

DESIGN PHILOSOPHY:  Twin-engined STOL military/utility aircraft with larger cabin and payload capacity than the Otter, as well as rear loading/air drop capability. Although certificated to U.S. civil regulations (CAR-4b), most of the Caribou aircraft went to military or government operators.

The DHC-4 model was designed with maximum takeoff, landing and zero fuel weights all equal to 26,000 lb. The -4A was cut-in at S/N 23, and some of the earlier aircraft also were upgraded to operate at the higher weights noted below. Reversible propellers were introduced as a special option, and fitted to all aircraft after S/N 149. They became standard on S/N 212 and subsequent.

DHC-4 Caribou Production List ...

PROPULSION

Engines:

2 x P&W R-2000-7M2 (Reciprocating)

Brake Horsepower:

1450

Propellers:

Hamilton Standard 3-Bladed, Full-Feathering, Reversible

WEIGHTS

Basic

17,630 lb

Maximum Takeoff

28,500 lb

Maximum Landing

28,500 lb

Maximum Zero Fuel

27,000 lb

Wing Loading

31.2 lb/sq ft

Power Loading

9.83 lb/bhp

EXTERNAL DIMENSIONS

Wing Span

95 ft 7.5 in

Length

72 ft 7 in

Height

31 ft 9 in

Tailplane Span

36 ft 0 in

Wheel Track

23 ft 1.5 in

Wheel Base

25 ft 8 in

Wing Area

912 sq ft

Aileron Area

91 sq ft

Flap Area

285 sq ft

Fin Area

127 sq ft

Rudder Area (Incl. tab)

84 sq ft

Tailplane Area

144 sq ft

Elevator Area (Incl. tabs)

86 sq ft

INTERNAL DIMENSIONS

Cabin Length

28 ft 9 in

Maximum Width

7 ft 3 in

Maximum Height

6 ft 3 in

Floor Area

176 sq ft

Volume

1150 cu ft

Cabin Doors - Left & Right

30 x 55 in

Cabin Doors - Rear

73.5 x 75 in

PERFORMANCE

Maximum Cruise Speed at 6500 ft

186 Knots

Maximum Permissible Dive Speed (Vne)

211 Knots

Economical Cruise Speed at 10,000 ft

161 Knots

Stalling Speed (CAS)

59 Knots

Rate of Climb at Sea Level - 2 Engines

1,355 ft/min

Rate of Climb at Sea Level - 1 Engine

235 ft/min

Service Ceiling - 2 Engines

24,800 ft

Service Ceiling - 1 Engine

8,800 ft

Takeoff Run (STOL)

725 ft

Takeoff Distance to 50 ft (STOL)

1,185 ft

Landing Run (STOL)

670 ft

Landing Distance from 50 ft (STOL)

1,235 ft

Payload/Range (Normal Tanks, 45 Min. Reserve):

200 miles / 8600 lb

600 miles / 7200 lb

1,100 miles / 5417 lb

[DHC-1] [DHC-2] [DHC-3] [DHC-4] [DHC-5] [DHC-6] [DHC-7] [DHC-8]

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Copyright 2002 XdH Aviation Services Inc.  All rights reserved.