I am working on a documentary and I have an opportunity to interview Glenn Martin of the Martin P12 Jetpack. I have found some interesting links to the Himmelstuermer project. Did it really exist? Did the American's confiscate basic prototypes? What would it have meant if these were mass-produced for the war and for now in terms of Commercial applications? http://discaircraft.greyfalcon.us/HIMMELSTURMER.htm http://www.dieselpunks.org/profiles/blogs/the-himmelstuermer-flightpack http://www.kotaku.com.au/2013/05/ho...oled-the-internet-with-nazi-jetpack-soldiers/ Does anyone have any patent jpg's for these pre-1950 jetpacks?