“Technical Testing of the "A5" Rocket The functional testing of the "AS" rocket follows a two-part program. The second part of this program, the decisive free-flight test, is preceded by a "stationary" (i.e. ground-based) test stand test. These tests were carried out on test stand P II and principally P VI. In principle, these test stands are designed like the test bench for stationary testing of the "A3" rocket at the Kummersdorf-West test site.” Gerhard Reisig, Raketenforschung in Deutschland, pg. 263-64.