V-2 rocket offensive began on 8 September 1944, when "Lehr- und Versuchsbatterie No. 444" () launched a single rocket guided by a radio beam directed at Paris. Wreckage of combat V-2s occasionally contained the transponder for velocity and fuel cutoff. The painting of the operational V-2s was mostly a ragged-edged pattern with several variations, but at the end of the war a plain olive green rocket also appeared. During tests, the rocket was painted in a characteristic black-and-white chessboard pattern, which aided in determining if the rocket was spinning around its longitudinal axis. The original German designation of the rocket was "V2",
SpaceX CRS-8 the outcome of the analysis of the failure of the Falcon 9 launch vehicle in SpaceX CRS-7, a June 2015 flight. The return-to-flight (RTF) project included additional improvements. With additional manifest changes announced by SpaceX in mid-October, CRS-8 was scheduled to be the third launch of the upgraded Falcon 9 Full Thrust rocket. By March 2016, the launch date was set to April 8, 2016, with a backup launch window the next day. The spacecraft was finally launched on schedule, at 20:43 UTC on April 8, 2016. The rocket first stage separated around 2 minutes 40 seconds after liftoff, and