In 1944-1945, the Armored Command Vehicle AEC 6x6 Mk I (or AEC
O857) had been producing. This machine was created on the chassis
of AEC O854 and had an armored bonnet body with an open top.
Armored Truck produced in two versions (high power HP and low power
LP according to the type of radio), weighed 17 tonnes and was
equipped with a 6-cylinder diesel engine AEC A198 with output of
150 hp and 4-speed gearbox. Maximum speed was 48 km/h. The Mk I was
followed by the Mk II with short bows and a frame on the roof to
take tarpaulin cover over the less critical HQ equipment like
tables and chairs. 151 trucks were made.
The larger 6x6 Command Vehicles had space for a Generator Set to
run in the truck, a battery room, and room for anywhere from 6-8
staff to work wireless sets and the like while on the move. They
could also set up a large tent and larger antenna masts for
additional connectivity as well as wired switch board
interfaces.
You can see the AEC 6x6 command truck has 4 compartments. The
front driver's compartment which had a pair of control boxes for
the driver and officer riding up front. The Next compartment is the
staff compartment. It had space for the wireless sets, control
boxes, and various work surfaces for maps, paperwork and other
tasks. There were 3-4 staff in here. The next compartment is a 2
person enlisted technicians compartment for two more staff (just
not officers) who assisted the staff in the main compartment. The
rear compartment is the generator compartment. The batteries and
1-2 generators (Onan types) were operated here so as to provide
charging of the batteries when they were low. The enlisted
technicians had to manage the batteries and effect repairs to sets
as well as other adjustments of the sort needed to keep the
Officers in the middle compartment working.
From a space sense, these ACVs are much larger than a modern
command vehicle in terms of head room and space. They do of course
stick out like a sore thumb from just about every other vehicle.
The proliferation of antenna from most command vehicles however
doesn't do them any justice when it comes to blending in, they're
not quite as obvious. Though with an M557 vs an M113, it's pretty
obvious which one has the staff flunkies in it.
The Command vehicles more or less had what in the larkspur days
was a B-Harness. Basically multiple control boxes allowing control
of multiple wireless sets for various staff. This allowed
re-transmission, talking on multiple nets, coordination between
nets and general sorts of command staff functions.
As far as wireless fit, WS-19s and their HP versions, Reception
sets, and some of the larger long range sets like WS-53s. There
were accessories for the control harnesses allowing interface of
wired communications into the mix allowing a radio call to be
shunted to a field phone net. Obviously this only works for a
station that's not on the move.
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