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).
Temperature comparison tests between two dashboard configurations with different louvred guards.
| Identifier | ExFiles\Box 75\4\ scan0100 | |
| Date | 14th March 1912 | |
| 2. Dashboard open, new type louvred side guards. Standard bonnet. | | Atmospheric temperature | Water temperature | Floorboards. top underneath | Time | |---------------|-------------------------|-------------------|-----------------------------|----------| | At start | 20 °C | 75°C | 26° C 39 °C | 0 mins. | | At finish | 20½ °C | boiling. | 24° C 45½°C | 10 mins. | [Handwritten, struck-through]: This is the recently adopted standard. 3. Dashboard filled in, present type of louvred engine guards fitted and standard bonnet. [Handwritten]: This is the recently adopted standard. | | Atmospheric temperature | Water temperature | Floorboards. top underneath | Time | |---------------|-------------------------|-------------------|-----------------------------|-----------| | At start | 16° C | 75°C | 18°C 22° C | 0 mins. | | At finish | 16° C | boiling. | 18°C 27° C | 5½ mins. | Footer text (upside down): R.{Sir Henry Royce} H.{Arthur M. Hanbury - Head Complaints} 938A (100 ft) (X 796. 14.3.12) G 2452 Handwritten in blue ink: R | ||