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).
Test results for closed and louvred bonnets on Broccone Pass, Austria, detailing water loss and temperature readings.
| Identifier | ExFiles\Box 119\3\ scan0005 | |
| Date | 20th September 1912 | |
| Mr Barrington. [Handwritten Note] Tests with closed & louvred bonnets on Broccone Pass . taken by Sinclair with 1718 in Austria 17.9.12 TEMPERATURES WITH BOTH SIDE WINDOWS OPEN Ascents Loss of Water Atmos. Body. Foot boards. [Handwritten Subtitles] Bottom Top Bottom Top Bottom Front 1st asc.t closed bonnet plate off 1 3/4 litrs. 9c 7c 25c 28c 40c 62c 2nd asc'd Louvred bonnet plate off 1 " 11c 9c 25c 30c 40c 58c 3rd asc.t Louvredbonnet plate on. 2 1/2 " 14c 11c 23c 26c 29c 45c [Handwritten Notes at bottom] Sent Members... File Cont'd | ||