Don't let them trick you into pulling up or turning until you lose your speed.
Major "Tommy" B. McGuire, USAAFTurn testing was fairly a manual task and one of the more tedious. The plane was was launced at altitude with 30 minutes of fuel and allowed to gain some speed. Then the plane was pulled into an turn that was slowly tightened over time. Data was taken via a script.
Note the results are in Indicated Air Speed (IAS).
Pick up to 5 planes to compare. Only planes that have been tested are shown.