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).
Test results for a crankshaft under various modifications.
| Identifier | ExFiles\Box 14\2\ Scan073 | |
| Date | 11th November 1929 | |
| X7090. S.S. C'SHAFT MI TESTS E79640:- LARGER PINS. Wt = 92 LB 7 OZ t = 17.4/20 = .87 SECS. E78456:- STANDARD Wt:- 79 LB 10 OZ t = 17.4/20 = .87 SECS E78456'- CHAMFERED Wt:- 75 LB 5 OZ t = 16.6/20 = .83 SECS. APPARATUS THE SAME IN EACH TEST. CONSISTING OF ALUM STRIP 20x2x1/4 + 2 BOLTS ETC 6.550 CTS.{C. Trot Salt - Carburation} Wt OF TACKLE 1LB 3OZ. E79640 AFTER CHAMFERING WEBS Wt = 86 LB 11 OZS t= .84 SECS. = 16 4/5 / 20 OSC. d=1.5' l=10.6 FT. TACKLE AS ABOVE 1LB 3OZ. E79640. AFTER BORING C'PINS LARGER. Wt = 79 LB 1oz (WEIGHED 15-1-31) FILE UNDER 40/50 CRANKSHAFTS | ||