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).
Oil pressure readings taken during a road test at different speeds and conditions.
| Identifier | ExFiles\Box 114\3\ scan0027 | |
| Date | 14th December 1938 guessed | |
| B.172.FB. A.{Mr Adams} C. Clarke. Esq. Messrs. Bentley. Motors Ltd. C. W. Oil Pressure Reading. on cold morning but at the end of Fifty miles run averaging 55MPH. and again at I00 miles. Head wind strong all the way, temprature 75.. After 50..miles. After I00 miles. After hard burst of four miles, Tick-over600 revs 8 lbs. 20 lbs.. 50M. P. H.{Arthur M. Hanbury - Head Complaints} 20 lbs. 24lbs.. 60 M.{Mr Moon / Mr Moore} P. H.{Arthur M. Hanbury - Head Complaints} -23 lbs. 27 lbs.. 70. M.{Mr Moon / Mr Moore} PH -28 lbs. 34 lbs. @4,000 Revs Top- 34 lbs 34 lbs. 4,000 Revs. 3rd.34 lbs 4,400 on top-34 lbs. Return jurney, strong following wind, After 80 miles very fast running. Tick over 600 revs-8lbs. 50 M.{Mr Moon / Mr Moore} P. H.{Arthur M. Hanbury - Head Complaints} 8 lbs. 70 M.{Mr Moon / Mr Moore} P. H.{Arthur M. Hanbury - Head Complaints} -22. Lbs. 4,400 Top- 30 Lbs. After 800. miles 4 pints oil. 6666 London and back 300 Miles 1 1/2 Galls - | ||