Railgun
the conducting rails or even damage the barrel of the gun. While previously it wore out after tens
of shots, it is getting closer to firing more than 400 shots.
So far only the Zumwalt class destroyers, capable of generating 78 megawatts of electricity and
built specifically for that purpose can handle the railguns.
9
Picture 3. Zumwalt class destroyer
Source: http://www.popularmechanics.com/military/research/news/a27455/us-navy-railgun-
more-powerful
3.2 Multi-shot salvos
Initial firing repetition rate (rep-rate) of multi-shot salvos have already been successfully
conducted at low muzzle energy. The next test sequence calls for safely increasing launch energy,
firing rates and salvo size.
Railgun rep-rate testing will be at 20 megajoules by the end of the summer 2017 and at 32
megajoules by 2018. To put this in perspective; one megajoule is the equivalent of a one-ton
annaabi.ee 
