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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).
Electrical experimental record sheet for a higher-output dynamo, model H.O.1.

Identifier  ExFiles\Box 68\4\  scan0148
Date  10th June 1929
  
X 8664
ELECTRICAL EXPERIMENTAL RECORD SHEETS. Higher-output dynamo H.O.1

Date on. | Location. | Date off. | REMARKS. | Miles reading start. | Miles reading finish. | Miles covered. | Total miles.
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15-8-28 | Lab. | 20-9-28 | Armature rec'd from shelf. 28 slots wound with 17 SWG. Winding the same as N8 std 28 slot arm. Tried in J carcass. B 8.5°. C 127.5° | - | - | - | -
20-9-28 | Lab. | 25-9-28 | Std carcass obtained from Prodn + end bracket redrilled to 127°. C angle found to be only 124° so holes slotted out to 127°. B=10° C=127°. Prodn + heating tests. | - | - | - | -
25-9-28 | 12 EX | 29-10-28 | Put on 12EX for 10,000 miles test. | 382 | 1,711 | 1,329 | 1,329
29-10-28 | 12 EX | 1-12-28 | Reading taken. | 1,711 | 3,222 | 1,511 | 2,840
1-12-28 | 12 EX | 4-1-29 | Reading taken. | 3,222 | 4,371 | 1,149 | 3,989
4-1-29 | 12 EX | 2-2-29 | Reading taken. | 4,371 | 5,610 | 1,239 | 5,228
2-2-29 | 12 EX | 2-3-29 | Reading taken. | 5,610 | 7,255 | 1,645 | 6,873
2-3-29 | 12 EX | 4-4-29 | Reading taken. | 7,255 | 8,265 | 1,010 | 7,883
4-4-29 | 12 EX | 1-5-29 | Reading taken. | 8,265 | 9,087 | 822 | 8,705
1-5-29 | 12 EX | 3-6-29 | Reading taken. | 9,087 | 10,793 | 1,706 | 10,411
3-6-29 | 12 EX | 5-6-29 | Reading taken. | 10,793 | 10,903 | 110 | 10,521
5-6-29 | Lab. | | Taken off for bench inspection + test.

10-6-29. Completed as this type of machine is standardised.
  
  


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