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).
Graph of the Gap-Make Ratio curve versus the Primary Gap for a standard Goshawk distributor.
| Identifier | ExFiles\Box 54\5\ Scan263 | |
| Date | 14th March 1934 | |
| GAP-MAKE RATIO CURVE. OF STANDARD GOSHAWK DISTRIBUTOR. RUN AT A CONSTANT SPEED OF 700 R.P.M. MAKE RATIO PRIMARY GAP (10⁻³INS) POINTS A AND B REPRESENT THE LIMITS GIVEN IN THE PRODUCTION SPECIFICATION FOR THE PLATINUM GAP SETTING. H.E.W. 14-3-34 P.9x 14.3.34 | ||