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).
Thrust tests on a Hoffmann Ball Race No. 325 with a No. R325 as a secondary bearing under a 500 LBS static load.
| Identifier | ExFiles\Box 8\11\ 11-page168 | |
| Date | 19th May 1939 | |
| BALL RACE THRUST TESTS HOFFMANN BALL RACE N° 325 ooo WITH " " N° R325 ooo AS SECONDARY BEARING. THRUST APPLIED AND READINGS TAKEN HORIZONTALLY. STATIC LOAD 500 LBS. N°325 N°R325 CLOCK THRUST STATIC LOAD VERTICAL AXIS: THRUST ~ INS ~, +.003, +.002, +.001, -.001, -.002, -.003, -.004, -.005 HORIZONTAL AXIS: THRUST LOAD - LBS -, 500, 400, 300, 200, 100, 100, 200, 300, 400, 500 BL 2340 | ||