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).
Proposal to adopt De Jon ignition to replace the American Bosch ignition due to supply issues.
| Identifier | ExFiles\Box 53\3\ Scan130 | |
| Date | 13th September 1927 | |
| R.R.A.100-1 10M-2-1-29 45625 ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. PROPOSED STANDARDIZATION OF CHASSIS PARTS Alteration No. 8217/A Date September 13, 1927 To Mr. Philip Beaver The following is proposed: No. 85 PIECE NOS. AFFECTED | SECTION NO. | NAME OF PARTS ---|---|--- | 5150 | Ignition DESCRIPTION of Alteration: To adopt De Jon ignition to replace American Bosch. PURPOSE of Alteration: Impossible to obtain continued supplies of American Bosch. Signatures implying agreement with the alteration: NAME | INITIALS | DATE ---|---|--- Mr. Olley Mr. Nadin Mr. Bagnall Mr. Hulley Moon Mr. Southern Ainsworth Mr. Caswell Mr. Ross Mr. Beaver Mr. Philip Fuller Mr. Royce Mr. Johnson We propose to put this alteration into regular manufacture on October 30, 1927 unless we hear from Mr. Johnson and Mr. Royce to the contrary. Tested: 20,000 mi. on bench ( See 25,000 MX{John H Maddocks - Chief Proving Officer}-2 (note Estimated cost: No appreciable change. Proposed Chassis at which alteration should start: 2051 Cost of parts scrapped, if any: None Increase in weight, if any: None Cost of Tools: None. | ||