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).
Log of reports and tests on 16+52 Axles with d's pitch.
| Identifier | ExFiles\Box 2\6\ B002_X 140 141 157-page021 | |
| Date | 2nd September 1912 | |
| R.R. Co. Ld. (D.{John DeLooze - Company Secretary} & P.) 161. 10,000. C. 10.10. X783 Section 500.X140 Description 16+52 Axles d's pitch. Date | Miles | REPORT 9/7/12. | | 6 new in hands. 11/7/12 | | 8 out on test. 12/7/12 | | Over 1764 V.{VIENNA} Crow only (1986) | | 1718 V.{VIENNA} Crown (1947) 18.7.12. | | No radius aparts (no claims) | | sets good for silence (Roller Brgs) | | excellent as regards wear. Ratio | | troublesome. Repairs still (1718) | | "view all round" (written) 2.8.12 | | Axle No 1986 with 16+52 axle fitted to 1926 2.9.12. | | 1 to 1718 still running | ||