Aluminum Rocket Vessel (Type)

Aluminum Rocket Vessel, or ARV is a type of space techs. It includes:
 * For the Space Tech see ARV (Space tech), and for more see ARV


 * DARV


 * OARV


 * ARV


 * and partially TRV

Later, ARVs are replaced by SPLASHes (DARV, OARV and ARV) and then later re-used (TRV) for moon landing (must be placed on a space platform).