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).
Test results from track and dynamometer tests comparing a worm axle with a bevel axle.
| Identifier | ExFiles\Box 2\6\ B002_X 140 141 157-page141 | |
| Date | 13th December 1911 | |
| ROLLS-ROYCE LIMITED. NIGHTINGALE ROAD, DERBY. DEPARTMENTAL MEMO. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). R.R. 475 1500 Bks. 14.11.11 E.P. 510. 98th meeting. This column is for Name of Person addressed: Mr Barrington for T.C. DATE: 13/12/11 98.th X141 Re Worm Axle compared with bevel Test on track 25 miles per hr. - Tested in same car for each test. Bevel axle temp. rose to 26°C in 30 mins (max test) Worm temp. rose to 86°C in 50 mins (max. temp) Dynamometer tests. Bevel H.P. transmitted to road wheels full power 1000 revs. 33.4. temp. rose to 50°C after running 60 mins. (max running) Worm H.P. under test 31.2. temp rose to 172°C after running 100 mins (max running) (continued) This sheet must be filed with the correspondence to which it refers. | ||