The first A-4 flight-test model ("Launch Aggregate 1") was completed 25 February 1942,[2], but slipped out of its "corset" after being fully tanked at Test Stand VII, fell 2 meters, smashed three fins, and came to rest on the rim of the engine nozzle.[1]:158 After being repaired and renamed Versuchsmuster 1 (V1: Experimental Type 1),:9,41 the rocket failed during a test firing (witnessed by Albert Speer) and was junked without any launch attempt.