The Thunderclap is arguably the GI Joe team's single largest piece of artillery. It can fire an eleven inch shell at a maximum effective range of twenty miles. The explosive force of these shells is staggering, and can simply atomize most opponents.
Not to mention leave a crater a full area across! The Thunderclap is massive, however, and needs two support vehicles to even move in the first place. These vehicles are a tractor and a trailer, and each has supplementary arms to protect their occupants.
When on the move as a whole, the Thunderclap has a material strength of 12, moves with but intensity 1 Propulsion (about 30 MPH on level ground), and the following vehicular characteristics:
The component of the Thunderclap people most associate with that name, the cannon base is the center portion of the Thunderclap, and by itself immobile - but then, that's what the other parts of the thing are for. It has these primary weapons installed:
Annihilator Cannon (a): the main weapon on the Thunderclap, this mammoth cannon fires eleven inch shells at an opponent, doing so with a 20 mile range. These shells inflict the gunner's Agility +10 damage to everything within near missile range of where they hit.
Body Armor (s): the cannon base is heavily reinforced, primarily to support the weight of the annihilator cannon. This has the side effect of offering anyone within +2 protection against injury, if attempting to use it as cover.
Mini-cannons (a): the rear of the cannon base is equipped with two 70mm, rotary barreled cannons. Each of these can fire a short burst of ammo to inflict one's Agility +6 in damage, or be fired continuously to inflict their Agility +7 in damage.
They have laser targeting beams for a +1 to hit, too.
Missile Launcher (i): the front of the cannon base has a thermally shielded box missile launcher, situated beneath the cannon barrel. It can fire three surface-to-surface missiles, which inflict intensity 10 damage, but add a +1 for each additional projectile used.
Passengers: while the other two components of the Thunderclap only have room for their driver, the cannon base can hold a bevy of support personnel when necessary. They can either use their own weaponry or the built in stuff during a firefight.
The tractor of the Thunderclap is a tracked vehicle that the front of the cannon base hitches to - and does the steering on the thing. It's usually where its primary operator (Long Range) is seated, and the area from which he commands its crew. It has these capabilities:
Body Armor (s): built tough primarily to support the staggering bulk of the cannon base, the tractor vehicle offers incidental protection to its occupant. While inside, he will benefit from intensity 8, or +2, protection from all injury!
Environmental Sensors (w): scattered about the tractor are environmental sensors that feed data back into the cab. This allows the commander of the Thunderclap to know when there are any hostile chemical elements in the area. These sensors function at intensity 10.
Low Attack Missiles (i): there are three surface-to-surface missiles spaced about the tractor vehicle, with two on the left side and one on the right - both situated above its treads. These missiles inflict intensity 10 damage, but add a +1 for each additional projectile used.
MG-999 Assault Weapon (a): this dual barreled, pulsating assault weapon is mounted atop the tractor's cab. It can be fired to inflict the driver's Agility +7 damage in a short, controlled burst, or the driver's Agility +8 damage in a fully automatic spread of ammunition.
Propulsion (a): while the Thunderclap is slow as a whole, the tractor vehicle component can move a bit faster when it's not hauling the rest of the thing around. By itself, the tractor can move at intensity 2 propulsion (around 60 MPH).
Radar Jamming Mechanism (i): the tractor vehicle on the Thunderclap can generate a lot of radio frequency 'noise' to prevent enemy radar systems from functioning properly; of course, this affects allies as well. This jamming functions at intensity 8.
The rear component of the Thunderclap, the trailer vehicle lifts the rear half of the cannon base off the ground, supporting much of its weight. It also provides forward motive force to assist the tractor in pulling the cannon about. It has these characteristics:
Blaster Cannons (a): these twinned assault weapons are mounted atop the trailer's cab. They can be fired to inflict the driver's Agility +7 damage in a short, controlled burst, or his Agility +8 damage in a fully automatic spread of ammunition.
Body Armor (s): built tough primarily to support the staggering bulk of the cannon base, the trailer vehicle offers incidental protection to its occupant. While inside, he will benefit from intensity 8, or +2, protection from all injury!
Communications Array (i): the trailer vehicle houses the Thunderclap's comm system. It's a gigahertz frequency, frequency wobbler clandestine operations radio system, providing intensity 6 transception (50 mile maximum range) with intensity 10 signal encryption.
Infrared Targeting System (w): the trailer of the Thunderclap makes use of an infrared range finder and target acquisition system (since the tractor jams radar). It can add a +1 to targeting attempts made with the annihilator cannon, as well as to hit with the Thunderclap's missiles.
Propulsion (a): while the Thunderclap is slow as a whole, the trailer vehicle component can move a bit faster when it's not hauling the rest of the thing around. By itself, the tractor can move at intensity 2 lightning speed (around 60 MPH).
ZPJ-79 Cruise Missiles (i): there are three surface-to-surface missiles mounted on the trailer vehicle - all on a launcher above its left wheels. These missiles inflict intensity 10 damage, but add a +1 for each additional projectile used.
GI Joe directories featuring a version of the Thunderclap:
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