Inter truck
It is possible that this truck has an aux transmission much like a transfer case where the drive can be transferred in 3 speeds to the rear axle or transferred to some other device ie, air con compressor and by being in 3rd gear the driven unit would be running at engine speed .
This is similar to a winch on a C or F60L Blitz.
The v8 engine is not a normal fitment for this size truck so it would have been sourced to drive the aux device.
Is it true that some aircraft with sensitive equipment on board required airconditioning whilst on the ground in higher temperature countries, Vulcan bombers come to mind.
Regards
Jim S.
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jim sewell
cmp and cckw
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