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 report on modifying floorboards and bonnet to manage engine heat and airflow.
| Identifier | ExFiles\Box 75\4\ scan0027 | |
| Date | 19th December 1911 | |
| Section. 3500. X879 DESCRIPTION:- Floorboards - Space filled in on dashboard & let out of holes in bonnet Date sheet from office. Date Works instructed. Reported T.D. office. Date. | Mles.) | Report. 1/12/11 | | T.C. 91. 13/12/11 | | Testing first operating working on job. 17/12/11 | 100 | Tested, side engine guards removed to get rid of air. With space filled in Temp. underfloorboards Temp. outside 28° 20° 32° 16° 29° 16° 32° 18° average rise = 19°C. Date received. Material received. Reported to office. Date. | Mles.) | Report. | | Car standard | | Temp underfloor Temp outside floor | | { 59°c 25°c | | average 48°C { 62°c 28°c | | { 58°c 27°c | | Air temp. 11°C | | The question to settle is as to get rid of air from engine satisfactory. 19/12/11 | | Referred T.C. 104 | | To fit paper further inside in undershield | ||