Commercial Caribou Users (DHC-4)
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Newest data is shown in red               Last updated 3/19/04

 Caribou with Fire Fighting Equipment

(Click on photo to enlarge)

A fire fighting kit has been installed in aircraft Registration Number EC-GQN (Serial # 290, this aircraft was ordered by and used by the Spanish Air Force , tail #T.9-12) . The FAA has approved both the kit and the installation with STC number ST01930 AT. This aircraft was up for sale on October 1999 by the Indra-BDE of Spain and it's status is unknown at this time.

The Kit has been designed following the US Department of Agriculture requirements. The water tank, with a total capacity of 3,500 lt., is divided into two independent compartments. These compartments are discharged through 6 doors at each side of the fuselage. The doors are gravity opened and hydraulically closed. The hydraulic system of the water tank is connected to the hydraulic system of the aircraft, employing security cut-off valves to isolate it in case of leaking or malfunction.

An electrical system exists to control the water discharge, the doors closure and the isolation of the water tank hydraulic system if any failure appears. Additionally, there is a hand operated hydraulic cut-off system in the cockpit just besides the pilot's seat.

There is an emergency system to discharge the water to be used in case of normal function failure. The emergency system is operated with a lever in the cockpit, just besides the co-pilot's seat. The kit is installed inside the aircraft and fixed to the cargo bay floor with screws. The installation is simple and does not interfere with the rest of the aircraft systems. Likewise, the kit can be removed very easily, so the aircraft can be used for fire fighting or cargo tasks. Once the kit is removed, the aircraft recovers all the cargo capabilities, without any reduction in weight or in volume. The aircraft needs to be modified to install the kit. The modification consists of the opening of doors in the fuselage to install the discharge pipes and the installation of the structural reinforces to recover the original aircraft characteristics. 

The aircraft modified for fire fighting has no restrictions in its basic performances due to the installation of the kit. 

N50NC (c/n # 302) at Cranfield, UK   10-90 (Malcolm Clarke)

HC-AVY (c/n # 23) Airwork engineers at Bournemouth, England on 3-9-73 admire this Caribou prior to its transfer to the Sultan of Oman's Air Force as 805. This was not to be its first military service as it was evaluated by the Swedish Flygvapnet in 1962 as 55001.  (Martin Pettit)

<<< N1017H (c/n #243) at Opa Locka, FL on 3/19/89. (Tom Hildreth)

>>> EC-GQN  (c/n # 290) This former Spanish Air Force Caribou was intended for Avinsa. Sadly, plans fell through . At Ocana, Spain 7/00  (D. Miguel Ruiz) 

<<< Ex Ghana Air Force G-401(c/n # 31) with tail number N90567 in Basle, Switzerland 8/76 for overhaul. (Eduard Marmet)
>>> Another photo of (c/n # 31)  9/76. (Urs Ruf)
<<< Ex Ghana Air Force G-401(c/n # 31) with tail number N90567 in the BALAIR hanger in Basle, Switzerland 10/76 for overhaul. Delivered to Indian Air Force as M2169 in 1/79.  (Urs Ruf)
>>> Uganda Police 5X-AAB (c/n # 222) at the BALAIR hanger in Basle, Switzerland 1976 for overhaul and repaint. (Urs Ruf)
<<< 5X-AAB (c/n # 222) Uganda Airlines in the BALAIR hanger in Basle, Switzerland 1976 after overhaul and repaint. (Urs Ruf)
>>> N5436 (c/n #119) - OP Company - 1995. (Wayne Mutza Collection)
<<< N700NC (c/n # 126) - 1987. (Wayne Mutza Collection)
<<< N2225C (c/n # 215) - 1996. (Wayne Mutza Collection)
>>> Trans Costa Rica (HR-ALJ) - 1989. (Wayne Mutza Collection)
<<< N539Y (c/n # 197) at Anchorage, Alaska in 1978. Crashed and burned in Lime Village, AK 1986.  (Terry Love)
>>> N6080 (c/n # 2) in Intermountain Aviation markings at Marana, AZ on 5/14/73. (John Stewart)
N6154T (c/n # 46) used for skydiving duties in New Smyma, FL in 3/6/99. Still has Army Mississippi  AVCRAD paint job.   (Larry LaVerne)

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