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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 data sheet for Test #6, focusing on Allison Bearings.

Identifier  ExFiles\Box 173\2\  img235
Date  22th February 1934
  
77
February 22, 1934.

ROLLS ROYCE ENGINE BEARING TESTS - Test #6

Allison Bearings.

TIME R.P.M. OIL INLET °C OIL OUTLET °C BRG. TEMP. °C OIL PRESS. lb/sq.in. TORQUE LOAD

12:10 3000 87.0 92 110 72 13.0-13.5
12:11 3250 121 66 23-24
12:12 3000 87.0 94 112 70 13.0-13.5
12:13 3250 87.0 94 115 70 15.2-15.7
12:14 3000 87.5 94 112 68 13.0-13.5
12:15 3250 87.0 93 114 71 15.0-15.5
12:20 3250 88.0 96 114 68 15.0-15.5
12:25 3250 88.0 95 114 70 14.5-15.0
12:30 3250 88.0 95 114 70 14.0-14.5
12:35 3250 88.5 96 114 69 14.0-14.5
12:36 3500 133 60 28
12:38 3250 87.0 95 117 80 14.5-15.0
12:38 3500 132 68
12:40 3250 88.0 96 115 79 14.2-14.5
12:40 3500 90.0 97 114 78 17.0-18.0
12:44 3250 90.5 97 114 76 14.0-14.5
12:45 3500 91.0 98 117 72 17.0-18.0
12:48 3500 87.5 98 118 74 16.5-17.0
12:50 3500 91.5 99 117 70 16.5-17.0
12:53 3500 90 98 117 72 16.0-16.7
12:55 3500 91.0 99 118 69 16.0-16.5
12:58 3500 90.0 99 118 71 16.0-16.5
1:00 3500 90.0 98 118 70 15.5-16.0

Start diving tests. 1 min. @ 2250, 30 sec. @ 3500R.P.M.

1:03 2250 87.0 97 106 60 7.0-8.0
3500 88.0- 95 112 72 15.7-16.2
1:05 2250 90.5 95 106 56 7.2-7.7
3500 90.0 95 110 70 15.5-16
1:07 2250 89.5 94 106 58 7.2-7.7
3500 88.0 94 110 73 15.5-16
1:09 2250 90.0 94 104 56 7.1-7.6
3500 90.5 94 110 69 15.5-16
1:12 2250 90.0 95 106 56 7.1-7.6
3500 89.5 94 110 70 15.5-16
1:14 2250 90.0 95 104 57 7.1-7.6
3500 89.5 94 109 71 15.5-16
1:17 2250 90.0 94 102 57 7.2-7.7
3500 90.5 95 109 69 15.5-16
1:19 2250 91.0 96 104 55 7.1-7.6
3500 90.5 94 109 70 15.5-16
1:21 2250 90.0 95 104 56 7.0-7.5
3500 90.0 94 109 69 15.5-16
1:24 2250 90.0 94 102 57 7.2-7.6
3500 89.5 94 109 70 15.5-16
  
  


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