The flight mobile suit MS-07H series was being tested and developed at Flatnail Air Force Base in Arizona. It suffered a mid-air explosion accident during its operational testing and was lost along with its chief test pilot, 2nd Lieutenant Franck Bernard. The original demand for improved mobile suit mobility was fulfilled by linking with the Do-Dai YS bomber, and the scale of development for the H series was greatly reduced as a research machine. It was later reported that the project's chief engineer, Colonel Isaac Womyak, was dismissed due to the H-4 accident.
However, after the integrated maintenance plan was issued, this H-type plan actually resurfaced. In particular, at the Lhasa development base in Tibet, which is carrying out the ground suppression mobile armor Apsaras (MA model number unknown) project that was prototyped by applying the Minovsky craft, the H series advanced MS-08H-8 combat-ready version was confirmed. ing. Although it is part of the H series, this aircraft underwent a major design review, starting with its flight performance. As far as the recorded images that can be confirmed, it is known that the development base machine was the revised design machine MS-07B-3 of the B series.
Only a limited number of documents have been confirmed for the H-8 aircraft, but the main points of change are the main vernier and the leg propulsion system, which have greatly improved thrust (a total of four newly designed high-output engines). converted to). The vectored thrusters for attitude control and the ventral fins for attitude control have greatly improved flight control in the air by introducing a high-precision digital control system (allowing hovering in the air). According to the footage recorded by the Earth Federation Forces special platoon, these aircraft, which were assigned to escort missions to Apsaras, were confirmed to be in mid-air containment operations on the Zanzibar-class cruiser Kerguelen after takeoff. It is surmised that the flight capability and thrust of the propulsion engine were perfected as powerful (according to some materials, the catalog spec said that the total thrust exceeded 100,000 kg). Standard paint is sky gray low visibility camouflage. The main armament is a 75mm Gatling gun equipped with a Gatling shield that conforms to the B-3 type. Because it was used separately, the burden on flight control was reduced. This aircraft is virtually the completed form of the MS-07H series. In addition, the details of the number of manufactured aircraft deployed in combat are unknown.