From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Continuation of Test No. 27 showing calculation results in a table.
| Identifier | ExFiles\Box 75\3\ scan0231 | |
| Date | 31th January 1925 | |
| TEST No. 27 Contd. (CALCULATIONS) Extra on load. Volts., Amps. Armature resistance (ohms). Ohmic volts light. Back E.M.F. Power delivered Watts. H.P. (H) % Slin. Engine speed. 2.35 | 5.30 | .450 | .90 | 107.54 | 570 | .765 2.26 | 6.00 | .377 | .75 | 121.29 | 728 | .978 3.07 | 7.00 | .438 | .93 | 131.55 | 920 | 1.233 7.88 | 7.69 | 1.025 | 2.16 | 138.81 | 1062 | 1.425 31.1.25. | ||