A U.S. Navy LTV-N-4 rocket. The LTV-N-4 was an experimental rocket, developed by the Naval Ordnance Test Station Inyokern, California (USA), for the development and testing of large solid-fueled rocket boosters for ramjet-powered missiles. Described as "more powerful than the V-2", a number of test flights were conducted during 1949.
U.S. Navy
<a rel="nofollow" class="external text" href="http://www.navy.mil/ah_online/department_arch.html">U.S. Navy All Hands magazine</a> <a rel="nofollow" class="external text" href="http://www.navy.mil/ah_online/archpdf/ah194904.pdf">April 1949</a>, p. 38.