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).
Instructions sheet detailing engine specifications: inlet pipe bore, inlet and exhaust port diameters, and engine stroke and bore dimensions.
| Identifier | ExFiles\Box 124\3\ scan0035 | |
| Date | 13th March 1918 | |
| R.R. 26 10M Bks.) (SE 591 13-3-18). M.P. 189358 ROLLS-ROYCE LIMITED. INSTRUCTIONS. X3317 To: Mr Hives Order No.: Brief Customer's No.: Reference: W/57 1917 Bore of Inlet pipe 1 1/32" Dia of Inlet port one leading to two cylinders 1 1/4" Dia of Exhaust ports 1 1/4" Engine 4.5" stroke 3.25 bore Signed This Sheet must be filed on completion of the work. | ||