A third Alt for Getaway Racer. A colony ship for Mars. Featuring rotating habitat sections, a thick bulkhead separating the nuclear engine and a null-weight bridge with four portholes. The spring-loaded action is thought of as the flywheel, which absorbs the spin of the habitats when the ship needs to be null-gravity all around (for landing for example. For the source of idea and data is Arthur C. Clark's "A Space Odyssey" Part 12799 (the Spring-loaded part) is not supported by LDD. Is it replaced by orange bricks in the LXF. Apologies.