The MS-06R-1A Zaku II is a mobile suit first appearing in Mobile Suit Variations for Mobile Suit Gundam III: Encounters in Space. It is a mass-production space combat mobile suit, and one of many variants of the standard MS-06 Zaku II.
Technology and combat Characteristics
After the successful release of the MS-06R-1 Zaku II High Mobility Test Type the Zeon engineers began to receive feedback from the pilots of the new units on ways the design of the mobile suit could be further improved upon. The new ideas were incorporated into the next release of the MS-06R-1A Zaku II High Mobility Type. The Zaku II High Mobility Type had some minor engine problems corrected, and the larger capacity propellant tanks were removed and replaced with exchangeable fuel cartridges, which were much quicker to reload and refuel.