Megavolt attached a second module to his coilgun - the resulting device with a maximum projectile velocity of 151 m/s was added to the Accelerator Table. As you can see, the ambitious task of exceeding the speed of sound is still far from being solved, but the case is progressing. Interestingly, the empirical parameter K_x increased during the transition from a single-module design to a two-module one, while the G-factor, on the contrary, decreased. My hypothesis (which appeared after discussions with the author of the design) is that this is caused by the incipient influence of the skin effect in the solid ferromagnet of the accelerated body. If this is the case, then with a further increase in speed, the problems will build up... Let's see what ... Read more »