The MAM-07 Grabro was an experimental underwater mobile armour developed by the Principality of Zeon.
The MAM-07 Grabro was one of the earliest mobile armour used by the Principality of Zeon during the One Year War. It was developed with the MA-05 Bigro as the basis of its design. It took the MIP Company one and a half months to complete the Grabro.
Three units were constructed in the submarine dock of California base and testing was conducted in the Gulf of Mexico.
One unit was used by Char Aznable’s “Mad Angler” team. It was piloted by Jukon-class submarine captain Flanagan Boone. He managed to severely damaged the Earth Federation’s assault carrier White Base when it was making its way across the Atlantic Ocean to South America, before the Grabro was destroyed by the Federation’s RX-78-2 Gundam.
The other two units were used throughout the war. When the war ended, they were seized off the coast of Madagascar.
The MAM-07 Grabro was a part-submarine, part-mobile suit designed for underwater combat. Unlike other Zeon aquatic mobile weapons, the Grabro did not have a mega particle cannon. Zeon scientists had planned to include a mega particle cannon mounted on the nose of the mobile armour in the mass-produced version. However, the mass production of the Grabro was eventually scrapped.
The MAM-07 Grabro had claws for close-ranged combat. For long-ranged assault, it was equipped with missiles for surface-to-air attacks, and torpedos for ship-to-ship and ship-to-shore attacks.
The Grabro had a pair of claws for melee combat. These are stored at the back of the mobile armour when not in use to reduce resistance when the Grabro moved underwater.
Seven-tube torpedo launchers
The two seven-tube torpedo launchers mounted on the main body of the Grabro carried three rounds in each tube. This gave the mobile armour a total of forty-two rounds to attack enemy ships or submarines, and coastal targets.
Surface-to-air missile launchers
The Grabro had two surface-to-air missile launchers mounted on its main body. Each launcher had eight rounds that were used to take down enemy air units.
Behind the scenes
Kunio Okawara was the original mechanical designer.