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).
Pull-off spring for the Phantom's front axle and brakes, comparing stress loads.
| Identifier | WestWitteringFiles\Q\January1927-March1927\ 93 | |
| Date | 19th February 1927 | |
| TO OM. ) FROM DA.{Bernard Day - Chassis Design} HS.{Lord Ernest Hives - Chair} ) Copy to BY.{R.W. Bailey - Chief Engineer} ORIGINAL DA{Bernard Day - Chassis Design}1/M19.2.27. PHANTOM - FRONT AXLE & BRAKES. X8430 Herewith we send N. sch. 2367. shewing a pull-off spring increasing the (calculated) load in the cables from 11 lbs. to 15 lbs. We cannot find by reference that the existing pull-off springs a on the new axle are less than those on the original one, but there may be something we don't know. We suggest that the stress of 88,500 lbs. per sq. in. is not unreasonable, being bending stress, compared with the limit of 80,000 lbs. per sq. in. in torsion. Will BY.{R.W. Bailey - Chief Engineer} please send us an extra print for R? RECEIVED FEB 21 1927 HS{Lord Ernest Hives - Chair} DA.{Bernard Day - Chassis Design} | ||