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 comparing water flow restriction through various radiator types and configurations.
| Identifier | ExFiles\Box 24\5\ Scan197 | |
| Date | 13th June 1929 guessed | |
| -4- RADIATOR RESTRICTION TESTS. A tank of 20 gal. capacity supplied water to the radiator from a head of 3 ft. 6 ins. above the top of the matrix. (See sketch). The quantity of water delivered direct through the supply pipe in 10 secs. is given and compared with various radiators. (Radiator dimensions see blue print.) RADIATOR. | QUANTITY OF WATER PER 10 SECS. (1) Supply pipe only. | 52.7 lbs. (2) V series E.73292 8/7 m.m. tubes. | 29.5 lbs. (3) Bump Radiator. Almost similar but with 6.5/7.5m.m. tubes. | 30.312 lbs. (4) As 3 but with 50 c.c's of oil inserted in the system. | 28 Lbs. (5) F.2.3 Series radiator E.77644 6/7m.m. tubes. | 25.8 lbs. (6) S.S. Radiator 6/7 m.m. tubes. | 25.07 lbs. (7) Radiator giving continuous trouble at high speeds. | 20.375 lbs. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||