An experiment was conducted dedicated to invesigation of heating and cooling of coils of the various configurations. Its results are discussed in application to permissible power and fire rate of the reluctance launchers.

Uncomplicated device for coil winding is described

This article bases on results of experiments conducted when EM-2 and EM-3 coilguns were being constructed. Their purpose was to  obtain accelerated body (projectile), optimal for portative electromagentic accelerators. Besides, I had to do some caluclations and Web data retrieval. The findings of those investigations are presented.