The
Chrysler TV-8 was an experimental concept tank designed by Chrysler in
the 1950s. The tank was intended to be a nuclear-powered medium tank
capable of land and amphibious warfare. The design was never
mass-produced.
The
50’s were a time of ferment in the tank design business, what with all
those nukes to contend with, concerns about the need to disperse
formations, reduce the number of troops, make the vehicles lighter and
more strategically deployable.
There have been many theoretical
approaches for doing things differently than the classic 3 in the
turret, one in the hull that is pretty standard (with some variations).
Two of the more common variations are “all in the turret” and “all in
the hull except the gun” approaches.
The
TV-8 is an example of putting everything – including the engine – in
the turret. Some of that was to enhance vehicle survivability against
nuclear blast.
This
design located the entire crew, armament, and power plant in that
pod-shaped turret mounted above a very lightweight chassis. The total
weight was estimated to be 25 tons with about 15 tons in the turret and
10 tons in the chassis.
The TV-8 was to be armed with the 90mm gun
T208 that would be rigidly mounted in the turret and have an
auto-rammer. Presaging the ammo storage designs of most modern tanks
like the M1 and later model Leopards, the ammunition stowage was in the
rear of the turret separated from the crew by a steel bulkhead.
Secondary
armament consisted of two coaxial .30 caliber machine guns firing
through the turret and one .50 caliber machine gun on top of the turret
remotely operated by the tank commander. The crew would use closed
circuit television to protect the crew from the flash of tactical
nuclear weapons.
The phase I design of the Chrysler TV-8 featured a
Chrysler V-8 engine with 300 gross horsepower which was coupled to an
electric generator located within the rear turret; the generator powered
two electric motors in the front hull, each motor driving either of the
two 28-inch wide tracks.
Other methods of powering the tank that
were later considered include a gas turbine engine drive, a vapour-cycle
power plant fueled by hydrocarbons, and a nuclear fission-powered
vapour-cycle power plant.
Interior layout of the Chrysler TV-8
Note
there’s essentially a turret within the turret. Although the tank could
be operated by only the gunner and driver, the tank was to have a crew
of four – because a crew of four can be self-sufficient for numerous
maintenance tasks like breaking track, while a crew of two is generally
going to have no choice but to sit around and wait for help – a concern
with some FCS platforms, like the NLOS-Cannon today.
The
gunner and driver flanked the gun. The driver could operate fully
protected inside the turret or with his head and shoulders exposed above
the roof, though I’m still thinking this is a tank that would have
taken out a lot of fences, cars, and building corners maneuvering
through the villages that dot the german countryside.
The
tank commander was at the right rear with the loader to his left. The
heavily armored inner turret was surrounded by a light outer shell that
gave the turret its pod-like appearance, and provided some protection
against the blast front of a small nuke.
The Chrysler TV-8 concept tank showing off it’s swimming ability. At least in an artist’s fantasy…
She
was to be propelled like a personal watercraft is today – a jet pump
operating from the turret. In a nod to not-yet-popular RPGs (but very
popular HEAT rounds fired by cannon) the shell did double-duty, acting
like the slat-armor on Strykers to pre-detonate shaped-charge warheads
thus reducing their penetrative power.
The
turret was supported by an articulated assembly which rotated in a ring
in the hull roof and it was moved in elevation by two large hydraulic
cylinders. I’m just guessing that the cynical engineers on the team
called that the Achilles Assembly.
Further studies determined that
this design offered no real advantages over the current (and still
current) form of tank design, so nothing ever went beyond mock-up stage.