The Trailer was a mobile suit transport trailer produced by the Earth Federation.
The Earth Federation designed a heavy duty trailer to transport mobile suits on the surface.
The Trailer was twenty-wheel transport designed to carry a mobile suit. The mobile suit would lie down on the trailer facing up to allow it to quickly get up and enter combat if necessary. Although the Principality of Zeon built the first mobile suits, the Zeon scientists worked mainly under little or zero gravity and did not have to worry about transporting the mobile suits under gravity, unlike the Earth Federation scientists.
Behind the scenes
Kunio Okawara was the original mechanical designer.