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 detailing the results of radiator overflow tests under various conditions.
| Identifier | WestWitteringFiles\K\September1923\ Scan19 | |
| Date | 12th July 1923 guessed | |
| RADIATOR OVERFLOW TESTS. Conditions. Engine R.P.M. 1000 - full throttle. Water levelled up at 95° - 3 pints taken out. Water boiled for 5 mins. Test No. | Condition. | Water collected. | Steam. | Total water lost in pts. | Lbs. load. | Remarks. ---|---|---|---|---|---|--- 1 | Standard. | 2 1/2 pts. | 2 1/4 pts. | 4 3/4 | 128 | 26.9.21 2 | " | 2 1/4 " | 2 1/4 " | 4 1/2 | 129 | Petrol cons. 32.8 to 33.5 pts. per hr. 3 | " | 2 1/3 " | 2 1/4 " | 4 1/2 full | 129 | 4 | " | 2 1/2 " | 2 " | 4 1/2 | 128 | 5 | 3" separator box between radiator top water pipe. | 1 1/2 " | 3 " | 4 1/2 | 128 | 6 | " | 1 1/4 " | 2 3/4 " | 4 | 128 | 7 | " | 1 1/3 " | 3 " | 4 1/3 | 129 | 8 | Aux: 1/4" pipe from separator for a vent. | 1 2/3 " | 2 1/2 " | 4 1/3 | 130 | 9 | " | 1 1/2 " | 2 3/4 " | 4 1/4 | 129.5 | 10 | " | 1 1/4 " | 2 1/2 " | 3 3/4 | 127.5 | 27.9.21 11 | Same as previous test but with Exp: Rad. cap (with baffle). | 1 1/2 " | 2 1/2 " | 4 | 128 | Petrol cons. 32 to 33.5 pts. per hr. 12 | " | 1 1/2 " | 2 3/4 " | 4 1/4 | 129 | 13 | " | 2 1/2 " | 2 3/4 " | 5 1/4 | 129.5 | 14 | " | 2 " | 3 " | 5 | 129 | 15 | Same as previous test but without Aux: pipe. | 1 1/4 " | 3 " | 4 1/4 | 130 | 16 | " | 1 1/2 " | 2 1/2 " | 5 | 129.5 | 17 | " | 2 1/3 " | 2 2/3 " | 5 | 130 | 18 | 2" separator between rad. and top water pipe. | 2 2/3 " | 3 1/4 " | 6 | 130 | 19 | " | 1/2 " | 3 1/4 " | 5 1/4 | 129.5 | 20 | " | 2 2/3 " | 3 1/4 " | 5 1/4 | 129.5 | 21 | " | 1 1/2 " | 3 1/2 " | 5 | 130 | 22 | " | 1 1/4 " | 3 3/4 " | 5 | 130 | 23 | Same as previous but with Expl: Radiator cap. | 2 1/8 " | 4 " | 6 1/8 | 129 | 24 | " | 2 " | 3 1/4 " | 6 1/4 | 130 | 25 | " | 2 " | 3 1/2 " | 5 1/2 | 130 | 26 | " | 2 " | 4 " | 6 | 130 | contd:- | ||