DHC-4A “TURBO” CARIBOU

PERFORMANCE SUMMARY

 

The Turbo Caribou STC certification basis is in accordance with Canadian AWM525 and FAA FAR 25 transport category regulations.

 

The following summary of the performance data is derived from the approved flight manual, test flight data, and the ‘airplane operating’ data supplement.  The data presented is under ISA conditions, takeoff, accelerate-stop, and landing distances are given at sea level, zero wind, and from a dry, level surface.

 

 

                                                 Take-off and Landing 28500 lbs.: Short Field Technique (STOL)

                                                             Ground roll.................................................. 800 ft.

                                                             Total distance to clear 50 ft....................... 1,300 ft.

 

                                                 Take-off at 18000 lbs.

                                                            Ground roll.................................................. 235 ft.

                                                            Total distance to clear 50 ft.......................... 780 ft.

 

                                                 Landing at 28500 lbs.

                                                            Ground roll.................................................. 354 ft.

                                                            Total distance from 50 ft.............................. 890 ft.

 

                                       Take-off and Landing 28500 lb.: FAR 25, Transport Category (AFM data)

 

                                                       Take-off (Flaps 7°)(One engine inoperative. At V1) 3,955 ft.

                                                       Accelerate-stop (One engine inoperative. At V1).... 3,925 ft.

                                                       Landing (Flaps 30°) (Total distance from 35 ft.)... 2,120 ft.

           

                                                Aircraft at 28500 lb. and All Engines Operating (Test Data)

 

                                               Take-off (Flaps 7°, both engines at take-off power)

                                                             Ground roll........................................................ 1,530 ft.

                                                             Total distance to clear 35 ft................................ 1,950 ft.

 

                                               Landing (Flaps 30°)

                                                             Ground roll........................................................... 700 ft.

                                                             Total distance from 35 ft.................................... 1,520 ft.

 

                                               Rate of climb at maximum continuous power (WAT) Sea level

                                                              Two engine…………………………….........................…1,520 ft.

                                                              Single engine……………………………….....................…220 ft.

 

                                               Service Ceiling

                                                              Two engines………………………….......................…  20,000 ft.

                                                              Single engine……………………….......................…….10,000 ft.

 

 

                                               Cruise speed at 10,000 ft. (ISA)

                                                              1100 PPH    Maximum   85% torque      1090 SHP      172 kt. TAS

                                                               910 PPH     Standard    60% torque       880 SHP       158 kt. TAS

 

                                              Max fuel 5,547 lb. (endurance 5.3 hrs with IFR reserve)

                                                              Aircraft empty weight           16,500 lb.

                                                              Aircraft gross weight             28,500 lb.

                                                              Aircraft zero fuel weight        27,000 lb.

 

        

 

 

 

 

 

 

 

 

                                                                                     AIRCRAFT BASIC DATA 

 

 

                                                                                            Wing Span  95 ft. 7.5 in.

 

                                                                                               Wing area  912 sq. ft.

 

                                                                                               Wing Aspect Ratio 10

 

                                                                                            Length Overall 72 ft. 7 in.

 

                                                                                           Height Over Fin 31 ft. 9 in.

 

                                                                                    Track of Main Wheels 23 ft. 1.5 in.

 

 

CABIN DIMENSIONS

Length (fwd edge of ramp) 28 ft. 9 in.

Width (maximum) 87 in.

Width (at floor) 73.5 in.

Height (on centerline) 75 in.

Volume (rectangular) 1150 cu. ft.

 

DOOR DIMENSIONS

Rear Loading Door

Width 73.5 in.

Height 75 in.

Side Doors (2)

Width 35 in.

Height 55 in.

                               

WEIGHTS

Design Take-off Weight 28,500 lbs.

Design Landing Weight 28,500 lbs.

Empty Weight 16500 ibs.

Maximum Zero Fuel Weight 27,000 lbs.

Maximum Payload 10,000 lbs.

Maximum Fuel

  (Internal Tanks) 5540 lbs.

 

ENGINES

Two PWC PT6A-67T

Take-off Rating 1424 BHP

 

PROPELLERS

Two Harzell 5 Bladed HC-B5MA-3M Constant Speed/Reversing.