Hi.
As the tracked trailers had a heavy weight and the cross-country abilities were somewhat limited to the high ground preassure of the tracks a new trailer was developed in the late 1930th.
In 1941 the new type 1 heavy trailer was introduced.
Main difference was the use of wheels instead of tracks. In the back four pairs of wheels were installed to divide the weight. In the front two pairs were mounted turnable. The wheels were made of steel with a rubber band shrinked on to minimize vibrations. Due to a diameter of 83 cm the center of gravity was much lower than on the type 94 trailers giving a higher stability.
The type 1 heavy trailers were used for the type Meiji 45 140 mm howitzer, the type Taisho 7 305 mm howitzer, the type 3 120 mm aa-gun and also to transport heavy loads between factories.
barrel and recoil mechanism of the type 3 120 mm aa-gun
Yours
tom!
