The 5157A 200kW generator trailer was used on the S-75 (NATO SA-2 GUIDELINE) missile system to provide local power, or to condition locally sourced mains electricity. It was based on the MAZ-5224 trailer, and is quite a large item of equipment. A suitable towing vehicle for the Vietnam era is the ZIL-157 truck, also available as a design on this site. The trailer contained two generating sets end to end, and was a reliable and versatile source of electrical power.
The basic MAZ-5224 trailer is provided with two frames, one with the stabilising legs deployed for static use, and the second with them retracted to represent the unit in transit. Both double and single wheels are provided, as a single is used (2 off) as spares, mounted under the frame. The dolly is provided in two parts to permit the insertion of the tow bar assembly before gluing, thus allowing for vertical rotation as required. The dolly unit should be allowed to rotate on the pin under the frame. The main generator body is in two parts so that it can be printed vertically to avoid excessive steps on the surface of the printed unit. It should be mounted on the frame as shown.
The product is offered for personal, non-commercial use under the Attribution-NonCommercial 4.0 International (CC BY-NC 4.0).