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).
Comparative study of cooling area calculations for three different drum designs.
| Identifier | ExFiles\Box 120\1\ scan0308 | |
| Date | 28th February 1941 guessed | |
| FIGURE D.{John DeLooze - Company Secretary} SKETCH 1. PRESENT TYPE DRUM. 2.250" COOLING AREA. LENGTH OF SECTION : 10.650" MEAN DIA. : 13.250" AREA. : 440 □" SKETCH 2. 3.250" LENGTH OF SECTION = 14.75" MEAN DIA. = 13.25" AREA = 615 □" SKETCH 3. 3.000" LENGTH OF SECTION = 12.85" MEAN DIA. = 13.25" AREA = 536 □" | ||