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).
The Sequence Starter Motor No.2 scheme, discussing carcase tubing and clearances.
| Identifier | ExFiles\Box 64\2\ scan0081 | |
| Date | 15th June 1927 | |
| X7625 EFC. BY21/H.{Arthur M. Hanbury - Head Complaints} 15.6.27. SEQUENCE STARTER MOTOR. NO.2. SCHEME. ---e--- Referring to EFC10/T.10.6.27. and R3/M.8.6.27. there is no difficulty in obtaining tube for the carcase of any special diameter. I am inclined to think this is the point R.{Sir Henry Royce} has in mind. If the question is one of clearance between the motor and the engine crankcase etc, here again we think a 5 1/4 diameter could easily be obtained without cutting clearances too fine. BY.{R.W. Bailey - Chief Engineer} | ||