Speed is the cushion of sloppiness.
Commander William P. 'Willie' Driscoll, USNR.Speed testing required no manual intervention except to start off the scripts. The process was to launch the plane with 30 minutes of fuel at various alts, wait 4 minutes, and record the speed. Altitudes in increments of 2500 feet were used, up to the alt a plane could hold after launching. Bombers were loaded with their default loads.
Note the results are in True Air Speed (TAS), not what pilots are used to seeing on their gauges (Indicated Air Speed, IAS).
Pick up to 5 planes to compare. Only planes that have been tested are shown.