Firefly cutaway drawing
Heat resistant shield of Cahelium Extract X
Caheliumized quartz window allows driver to see through shield
Nitro-glycerine gun
Fume extract
Smoke vent
Hydraulic recoil gun mountings
Loading arm holding shell in line with open breech ready
for hydraulic ram to complete loading sequence
Shell conveyor from magazine
Driving position [see below left]
Air intake with refrigerated cooling
Head light positioned to clear the base of
the screen when it is in raised position
Hydraulic arms supporting shield
Remote-controlled searchlight
Warning klaxon
Compact 800 b.h.p. power plant drives the tracks
and the main pump through the power take off
Main pump
Power take off
Tanks hold two fuel ingredients which are
non-flammable until mixed in the blender
valve [see below]
Blender valve
Hydraulic suspension
Gearing, track brake and clutch to main drive sprocket
Water hose nozzle supplied through hose reel from pump
Gantry lifts to direct nozzle through 120 degree angle
for high-pressure jet work; at lower pressure, the nozzle
emitscooling spray over the vehicle
Foam monitor nozzle which can be raised and turned to any angle

Technical specifications originally published in Thunderbirds 1967 Annual

Technical Specifications
name: Firefly
description Brains has designed the most amazing firefighting machines for International Rescue. The most succesful is the Firefly which incorporates the use of Cahelium Extract X, one of the toughest metals known to man. The Firefly can travel to the heart of a blaze and snuff out a fire at its source. This is often done by means of nitro-glycerine shells which are fired from the nozzle in the protective plate.
designer: Derek Meddings