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"Harpoon" Railgun Launcher

This device uses the same principles as a mass driver in order to propel a small SSTO into flight without the usage of a runway. The two outer rails house the mass driving thrusters, while their inner rails are guides for the detachable rollers to hang on to.

To use, activate SAS, set throttle to full, and press action group 1. The launch and shutoff process is fully automated, including the decoupling of the rollers.

The included SSTO reaches LKO with ~800m/s remaining.