German Rockets 28cm WK SPR & 32cm WK Flamm (35316) 1:35 MiniArt via Creative Models Ltd     These were spin-stabilised rockets that carried either high explosive warheads in the smaller diameter, or 50 litres of an incendiary mix of oil for the larger 32cm rocket.  They were both suspended in wooden crates of the same dimensions, so they were interchangeable without any adaptation to the launch device.  The rockets were launched by an electric signal, and due to the