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).
Instructions and report for a beaded edge tyre deflation test.
| Identifier | ExFiles\Box 53\1\ Scan116 | |
| Date | 20th August 1922 | |
| RR26 (10M BKS) (SH 658 5-11-20) MP 221103 X4546 ROLLS-ROYCE LTD. INSTRUCTIONS To. Mr Haines Order No. Customer's No. Test with beaded edge tyres on deflation with & without security bolts. Two tyres were fitted to 4.E.7 Rear Wheels, Near side had security bolts Off side none. The car was run at varying speed's up to 45 M.P.H round a grass track. and after 7 miles the Near Side tyre tore it's self off. the tyre without the security bolts remaining on. The tyre which was held on appeared to twist up between the security bolts which eventually tore the canvas. Signed: [Illegible signature] This Sheet must be filed on completion of the work | ||