While poking around for a project as a scratch build, I found this rocket/missile that is not in widespread use. After starting a sim for it I was pointed to legranddudu's, https://www.rocketryforum.com/threads/90-ruhrstahl-kramer-x4-1944-1945.52241/, build of the 90% scale. I am going to try and build this rocket from my own interests and help solve some of the issues with it.