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).
Race regulations detailing licensing, crash helmets, and compulsory minimum distances based on engine capacity.
| Identifier | ExFiles\Box 160\3\ scan0314 | |
| Date | 13th June 1938 | |
| (I2) Said armlets will be supplied to the parties concerned during the checking operations at the Halle aux Toiles. LICENCES Art. IO. - Competitors and drivers must be holders of A.C.F. licences or of licences from a club affiliated to the A.I.A.C.R. (Sports Rules of the International Association of Recognised Automobile Clubs, articlesNos 39 and 40 and appendix B). CRASH HELMET Art. II. - The wearing of a crash helmet is strongly recommended to drivers. COMPULSORY DURATION AND DISTANCES Art. I2. - In order to be placed every car is under the dual obligation of running for 24 hours, plus the time necessary for completing the least lap, as stipulated in article I4, and of covering a given minimum distance during said 24 hours. Said minimum distance M is calculated as follows : C being the cylinder capacity in cubic centimêtres, the value of the following expression will be worked out : M = 3000 x C C + 440 C is the basic cylinder capacity, that is to say, either the geometrical cylinder capacity as defined elsewhere in the case of an engine not provided with a supercharger, or said geometrical cylinder capacity multiplied by I.65 in the case of an engine fitted with a supercharger. As an indication, the following will be compulsory : Average per hour ----- For 500 c.c. a minimum distance of I,595 kil. 745 .. .. 66 kil. 489 750 c.c. a minimum distance of I,890 kil. 756 .. .. 78 kil. 78I I,000 c.c. a minimum distance of 2,083 kil. 333 .. .. 86 kil. 805 I,I00 c.c. a minimum distance of 2,I42 kil. 857 .. .. 89 kil. 285 I,500 c.c. a minimum distance of 2,3I9 kil. 587 .. .. 96 kil. 649 2,000 c.c. a minimum distance of 2,459 kil. 0I6 .. .. I02 kil. 459 3,000 c.c. a minimum distance of 2,6I6 kil. 279 .. .. I09 kil. 0II 4,000 c.c. a minimum distance of 2,702 kil. 702 .. .. II2 kil. 6I2 5,000 c.c. a minimum distance of 2,757 kil. 352 .. .. II4 kil. 889 6,000 c.c. a minimum distance of 2,795 kil. 03I .. .. II6 kil. 459 7,000 c.c. a minimum distance of 2,822 kil. 580 .. .. II7 kil. 607 8,000 c.c. a minimum distance of 2,843 kil. 60I .. .. II8 kil. 483 The indication of the distances to be covered by each competitor will be published and posted up at latest on Monday I3th. June at noon, at the headquarters of the Automobile-Club de l'Ouest. Any vehicle failing to travel the distanced assigned to it will not be placed. *** | ||