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).
Effectiveness of water excluders on the Bentley Front Axle following tests in muddy conditions.
| Identifier | ExFiles\Box 84\2\ scan0287 | |
| Date | 4th February 1935 | |
| To By ) E.{Mr Elliott - Chief Engineer} ) c. to Mor. c. to Da.{Bernard Day - Chassis Design} K206 HS{Lord Ernest Hives - Chair}/AFM.{Anthony F. Martindale}6/KW.4.2.35. Water Excluders - Bentley Front Axle. Since writing memo. Hs{Lord Ernest Hives - Chair}/AFM.{Anthony F. Martindale}1/KW.30.1.35 on the above head, we have subjected the recommended excluder to extremely muddy conditions, and no disadvantages have made themselves apparent, either due to the caked mud, or due to subsequent washing with a 300 lbs/sq.in. pressure hose. We have noticed that there are two series of holes in the hub plate of standard production brake drums. The inner series of holes do not greatly assist water to enter the drums, although we made some suggestions concerning them in our last memo. We have now been running our Experimental Bentleys for some time with the outer holes blocked up, without experiencing any ill effects, and from the water exclusion point of view it is essential that they be blocked up; if they are not, then the expense of fitting special excluders will hardly be justifiable. HS{Lord Ernest Hives - Chair}/A.F. Martindale. | ||