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).
Quarterly statistical report on failures of transmission, propeller shaft, and telegauge components across various models.
| Identifier | ExFiles\Box 130\1\ scan0035 | |
| Date | 31th March 1933 guessed | |
| - 12 - 20 HP. 25 HP. PH.I. PH.II. TOTAL. GRAND TOTAL. REMARKS. TRANSMISSION - REAR AXLE THRUST. March quarter. C.C. - 6 - 1 7) 9 W.P. - 2 - 2) Previous quarter. C.C. 2 8 - 1 11) 16 W.P. - 3 - 2 5) Six Months. 2 19 - 4 25 25 REMARKS: 20/25 HP. - New type thrust bearings now available. No failures of this type are yet reported. See Depot Sheet No. Hd.{Mr Hayward/Mr Huddy}214. Ph.II. - The limits have been altered to reduce thud on the pick up. TRANSMISSION - REAR AXLE OIL LEAKS. March quarter. C.C. - - - 9 9) 13 W.P. - - - 4 4) Previous quarter. C.C. - - - 6 6) 8 W.P. - - - 2 2) Six Months. - - - 21 21 21 REMARKS: Complaints on Ph.II are being dealt with by modifying the N.S. bearing housing and fitting an air vent. PROPELLER SHAFT - OIL LEAKS. March quarter. C.C. - 6 - 11 17) 20 W.P. - - - 3 3) Previous quarter. C.C. - 3 - 9 12) 12 W.P. - - - - -) Six Months. - 9 - 23 32 32 REMARKS: This job is now being improved by the Works during manufacture. TELEGAUGE FAILURES. March quarter. C.C. - 38 - 36 74) 86 W.P. - 3 - 9 12) Previous quarter. C.C. - 17 - 31 48) 62 W.P. - 1 - 13 14) Six Months. - 59 - 89 148 148 REMARKS: These are all Hobson K.S. Gauges. Generally speaking, these instruments are not too reliable. Handwritten: Any complaints of Smiths electrical gauge | ||