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).
Letter providing feedback on the performance of American Bosch magnetos and winterfronts on various cars.
| Identifier | ExFiles\Box 78\1\ scan0310 | |
| Date | 5th March 1921 | |
| CC Mr. Bagnall: Mr. Nadin. Mr. Hulley. Mr. Southern. CY3/G5.3.21 March 5th. 1921. Mr. Claude Johnson, Managing Director, Rolls-Royce Ltd., London, England. Attention Mr. Hives. Dear Sir:- Re. U.S.A. Bosch Magnetos Re. Winterfronts. Replying to Mr. Hives' letter of February 11, 1921 on these subjects:- I have replied to the first point in my letter of February 4 with enclosure of January 18 from Mr. Caswell. American Bosch ZR-6 Magnetos have been fitted to 5 or 6 pre-war cars and have given complete satisfaction. This represents a total mileage of over one hundred thousand miles at the least. We have fitted one post-war car with American Bosch ZR-6 magneto, which was last seen after running with this machine for about a thousand miles. It was quite satisfactory. In addition, about ten post-war customers have removed the Watford and fitted American Bosch at their own expense, which represents a mileage of about twenty thousand. All report complete satisfaction. We therefore feel that the American Bosch ZR-6 has been well tried out on post-war cars. Winterfronts have been used by us on one car in cold weather with satisfaction. We think it is not large enough to prevent the water boiling in warmish weather, which is occasionally met with even in wintertime. The cost is $15.00 wholesale. The objections to this, as compared with the Galliater are that the Winterfront does not close itself when the car stops, and that it has not a large enough opening to Contd. | ||