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).
Blueprint detailing brake drums with 'cast-in' mild steel back plates.
| Identifier | ExFiles\Box 120\1\ scan0265 | |
| Date | 16th March 1938 | |
| BRAKE DRUMS WITH "CAST-IN" MILD STEEL BACK PLATES. ① INSIDE DIA CONSTANT. BEFORE CASTING AFTER CASTING 'A' .050 OUTSIDE DIA. REDUCED BY APPROX 1/120 TH BY CONTRACTION OF CASTING ② 'X' 'B' CHILLED PORTION SHOWN SHADED AT 'X' TOOLING HERE SHOULD BE AVOIDED IF POSSIBLE. Hickins | ||