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).
Comparison of matrix and core surface areas relative to litre displacement.
| Identifier | WestWitteringFiles\K\October1923\ Scan38 | |
| Date | 1st October 1923 guessed | |
| E.{Mr Elliott - Chief Engineer} A.{Mr Adams} C. COMPARISON OF LITRE DISPLACEMENT. | Area of matrix face per litre displ: | Surface of core per litre displ: | Surface of core per litre displ: per inch. of depth. | |---|---|---| | 66.0 sq.in. | 16.8 sq.ft. | 4.2 sq.in. | COMPARISON ON 1000 LITRE DISPLACEMENT PER MILE ON DIRECT DRIVE BASIS. | Area of matrix face per 1000 ltr. displ: per mile. | Surface of core per 1000 ltrs.displ: per mile. | Surface of core per in. of depth per 1000 ltr. displ: per mile. | |---|---|---| | 61.7 sq.in. | 15.72 sq.ft. | 3.93 sq.ft. | | ||