SF-32V is a short range interceptor, designed to fight against small fast moving targets. It’s armed with two rapid-fire railguns. Modular design provides opportunity to repair this starfighter very fast. Its thermonuclear engine is based on open cycle. So it’s not economical, but provides great thrust, compact simple and not heavy, that is ideal combination for a combat vehicle. However it limits its range. Due to it, SF-32V hasn’t got advanced life support system, just a pair of oxygen tanks and a carbon dioxide filters. That’s enough for short missions.
CS-32 is a light cargo shuttle, based on interceptor SF-32V. It’s not armored as its “father” and has no weapon. It has huge heavy but very economical closed cycle engine. It uses not only products of thermonuclear reaction but also inert propellant, which is accelerated by colossal heat of reaction. Open cycle engines don’t use this part of energy.
CS-32 by Sunder_59, on Flickr