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).
Dimensions and weights table for Avon Standard Silent Tyres (4 ply).
| Identifier | ExFiles\Box 156\3\ scan0218 | |
| Date | 18th November 1940 | |
| VB. 18.11.40. DIMENSIONS OF AVON STANDARD SILENT TYRES (4 ply) Size. Rim. Overall dia. Sectional width. Static radius loaded. Cover Weight. Tube weight. Flap weight. Present. Future. 5.00/16 3.00 D.{John DeLooze - Company Secretary} 26.92 5.16 12.56 18lbs. 8ozs. 18lbs. 3ozs. 2lbs. 2 ozs. 4 ozs. 5.25/16 3.00 D.{John DeLooze - Company Secretary} 27.2 5.22 12.68 20lbs. 3ozs. 19lbs. 10ozs. 2lbs. 2ozs. 4 " 5.50/16 3.50 D.{John DeLooze - Company Secretary} 27.5 5.64 13.0 21lbs. 7ozs. 20lbs. 12ozs. 2lbs. 8ozs. 4 " 5.75/16 3.50 D.{John DeLooze - Company Secretary} 28.34 5.75 13.13 24lbs. 8ozs. 23lbs. 11ozs. 2lbs. 8ozs. 4 " 6.00/16 4.00 D.{John DeLooze - Company Secretary} 29.06 6.22 13.58 27lbs. 7ozs. 26lbs. 6ozs. 3lbs. - 4 " 6.25/16 4.50 E.{Mr Elliott - Chief Engineer} 29.18 6.56 13.81 28lbs. 10ozs. 27lbs. 5ozs. 3lbs. - 4 " 6.50/16 4.50 E.{Mr Elliott - Chief Engineer} 29.75 6.75 13.86 31lbs. 1oz. 29lbs. 8ozs. 3lbs. 7ozs. 4 " ø 7.00/16 5.00 E.{Mr Elliott - Chief Engineer} 30.7 7.56 14.3 35lbs. 5ozs. 33lbs. 10ozs. 3lbs. 7ozs. 4 " ø 7.50/16 5.50 F.{Mr Friese} 31.4 7.84 14.6 42lbs. 13ozs. 41lbs. - 4lbs. 6ozs. 5 " ø Subject to confirmation. | ||