An attempt to a ramjet powered missile similar to a V2.
This version has the explosive charge mounted on the center of the intake.
Source : "Luftwaffe: Secret Designs of the Third Reich" by Dan Sharp
https://www.classicmagazines.co.uk/product/5540/bookazine-luftwaffe-secret-designs-of-the-third-reich
The other Luftstrahlgeschoss versions :
1st version :
http://shpws.me/Qs6s
3rd version :
http://shpws.me/Qs6u