20 HP road spring failures observed during a 10,000-mile test.
| Identifier | WestWitteringFiles\N\July1925-September1925\ Scan240 | |
| Date | 9th September 1925 | |
| R.R. 493A (50 H) (D.D. 31, 12-6-25) J.H.D. EXPERIMENTAL REPORT. Expl. No. ORIGINAL REF: H.S./G.M.T.9.9.25. To Rj from Hs. {Lord Ernest Hives - Chair} c. to C.J. B.J. c. to Rd. E. {Mr Elliott - Chief Engineer} c. to DA. {Bernard Day - Chassis Design} BY. {R.W. Bailey - Chief Engineer} c. to Wor. {Arthur Wormald - General Works Manager} 20 HP. ROAD SPRINGS.+ X5410 X58240 Attached herewith are sketches of failures of spring leaves observed during 10,000 miles test on 9-G-lll in France. It will be noted that the fractures always start on the top side of the plate - fractures also start from the outside edges. Except for top leaves, the failures nearly always occur close to the spring clips! Hs {Lord Ernest Hives - Chair} ! | ||
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).