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).
Engine bearing test log number 5 for Allison Bearings, detailing performance metrics over time.
| Identifier | ExFiles\Box 173\2\ img229 | |
| Date | 21th February 1934 guessed | |
| ROLLS ROYCE ENGINE BEARING TEST - Test #5 Allison Bearings TIME R.P.M. OIL INLET °C OIL OUTLET °C BRG. TEMP. °C OIL PRESS. lb/sq.in. TORQUE LOAD 9:10 500 67.5 40 26 90 9.25 9:15 750 77.0 51 39 110 7.50 9:20 750 77.0 57 55 95 6.50 9:25 1000 75.0 63 69 100 6.50 9:30 1000 75.0 67 73 90 6.75 Stop change oil gauge. 9:35 1500 77.0 68 75 118 9.0 9:40 1500 78.0 72 79 107 7.6 9:45 1500 80.5 76 82 93 7.5 9:46 1750 88 8.5 9:47 1500 82.0 78 84 88 6.5 9:48 2000 83.0 80 88 100 9.0 9:49 1500 83.5 81 85 80 6.0 9:50 2000 85.0 82 88 94 9.0 9:55 2000 87.0 85 94 83 8.5 10:00 2000 89.5 89 100 74 8.25 10:05 2000 88.0 89 98 76 7.75-8.0 10:06 2250 100 11.5 10:07 2000 89.0 89 98 74 7.75-8.0 10:08 2500 89.5 90 104 82 14.0 10:09 2000 89.5 90.5 98 70 7.5 10:10 2500 89.5 90.5 102 78 10.5-11.0 10:11 2500 112 18.0 10:12 2500 90.0 91.5 108 74 10.5-11.0 10:15 2500 89.5 92.0 102 74 10.0-10.5 10:20 2500 88.5 91.5 104 76 9.75-10.25 10:25 2500 90.5 92.5 106 72 9.75-10.0 10:29 2500 89.5 92.0 106 74 9.75-10.0 10:30 2750 89.5 94.0 132 78 22.5 10:31 2500 89.5 94.0 110 72 10.0-10.5 10:32 2750 90.0 93.0 124 68 13.5-14.0 10:33 2500 90.0 94.0 109 70 9.75-10.25 10:35 2750 90.0 93.0 114 74 12.0-12.5 10:40 2750 88.0 93.0 121 78 12.0-13.5 10:41 2750 112 11.5-13.0 10:45 2750 86.0 92.0 109 80 11.5-12.0 10:50 2750 88.0 92.0 109 80 11.0-12.0 10:54 2750 88.5 92.5 106 79 11.25-11.75 10:55 3000 131 74 18 - 22 10:56 2750 89.5 94.0 118 75 11.0 - 12.0 10:57 3000 90.5 96.0 132 70 17 - 18 10:58 2750 90.5 96.0 117 72 11 - 12 11:00 3000 89.0 96.0 117 76 13.75-14.5 11:04 3000 90.5 96.0 130 75 14.5-15.5 | ||