Hi Bunjy, very cool to see my other Tumblr interest (aviation) pop up on your blog! The weird ring on the fourth plane (a Blohm & Voss BV 138, nicknamed the "flying clog" for obvious reasons) is actually a big degaussing device intended for minesweeping - it generates a magnetic field to trigger magnetic mines, with the plane (hopefully) flying fast and high enough not to be caught in the resulting explosion.
holy shit that’s amazing, thanks for sharing!














