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).
Cracked end plate and sheared bolts on a Wraith III Bumper Chassis rear axle following testing.
| Identifier | ExFiles\Box 7\3\ X 602 Axle Rear-page60 | |
| Date | 14th January 1939 | |
| 602 and 100H To. RH{R. Hollingworth}, from HPS{Horace Percy Smith - Experimental Factory Mgr}/AB. ~~Sy-Bgy~~ c.c. Hm{Capt. W. Hallam - Head Repairs}/Gry.{Shadwell Grylls} FJH{Fred J. Hardy - Chief Dev. Engineer} A H* HPS{Horace Percy Smith - Experimental Factory Mgr}/AB.1/VS.{J. Vickers}14.1.39. WRAITH III BUMPER CHASSIS. We attach hereto for reference photographs of cracked R.H. End Plate G.85608 of Rear Axle Centre Case and sheared end plate bolts. This centre case was loaded with 187 lbs. of lead and had completed a total of 67 1/2 hours running on 3" cams. HPS{Horace Percy Smith - Experimental Factory Mgr}/A.E. Barton. | ||