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).
Fuel consumption test record for a carburettor on a 1500 type engine.
| Identifier | ExFiles\Box 147\5\ scan0012 | |
| Date | 9th January 1911 | |
| Handwritten top: (1) consumption, 3800, (2300) Title: HORSE-POWER HOURS PER GALL. TEST. R.R. CARBURETTOR. Table Data: Column Headers: Revs. | H.P. | Time for 1 qt. | Carb. | H.P.Hrs per g.{Mr Griffiths - Chief Accountant / Mr Gnapp} | Remarks. Row 1: 1250 | 62 | 3m 11s. | - 1 | 13.2 .608 | Carb. with large Row 2: 1250 | 63 | 3m 3s | 0 (handwritten: control) | 12.8 .627 | throttle .6 and .9 throats 30 oz spring in air Row 3: 1250 | 63 | 2m 50s | + 1 | 11.9 .678 | valve 5/32" lap. Handwritten note (green ink, next to H.P.Hrs column): Equils for HP hrs Test Details: Taken by Hives on Test Plate 9/1/11 Compression 63 lbs by gauge 24 1/2 cubic ins. capacity. 1500 type engine. Handwritten note (red ink): Note. Test shows loss 10% power on notch by giving more than absolutely required CP 20/1/11 | ||