Also known as: Excalibur Mainforce Battloid
- Designation: MBR-04-Mk VI
- Mecha Class: Battloid
- Crew: 1 pilot
- Weight: 28 tons (dry), 31 tons loaded
- Depth: 5.1m
- Height: 12.7m
- Breadth: 7.9m
- Max walking speed: 88 kph
- 1 x Particle Beam Cannon, PBC-12. Left arm.
- 3 x Head lasers, 90degree fire arc each
- 2 x Missile launchers in the shoulders
- 2 x Mini-Missile launchers, above and behind each shoulder.
Easily the powerhouse of Earth mecha, from any of the Robotech Wars, the Destroid Tomahawk is Earth's attempt to field the legged equivalent of a main battle tank. The mecha, like all first generation Earth mecha intended to fight the Zentraedi, is quite large, making it an easy target. To compensate for this weakness, the Tomahawk is equipped with a vast array of weapons, making it capable of engaging targets over the horizon with its missiles, and numerous targets in the line of sight at once. The main guns, mounted on the arms, are extraordinarily powerful. The mecha itself is heavily armored, and cost in its production was reduced by the fact that the legs and trunk were shared with two other Destroid models.
The mecha is equipped with vernier thrusters, making it capable of limited space operations. In most cases, the mecha was used on the deck of the SDF-1, and its capacity to maneuver in zero-gee was limited to propelling itself back toward the ship's deck, if it is ever knocked off.
If this mecha had a weakness, it was its relatively slow speed in comparison to the Zentraedi Battlepods. Its significant armor provided some protection, but most Zentraedi mecha were simply too fast to be drawn into the artillery barrages for which the Tomahawk was designed. It was this failing that led in part to the shrinking of future generations of Earth mecha, where mobility and a smaller shilouette were emphasized to increase survivability.