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 in table format detailing the results of 'SS' radiator movement under different engine and body mounting conditions.
| Identifier | WestWitteringFiles\T\2January1929-June1929\ Scan127 | |
| Date | 1st February 1929 guessed | |
| 'SS{S. Smith}' RADIATOR MOVEMENT. | Engine Mounting. | Type of body or ballast. | Body mounting or ballast distribution. | Condition of cross. | % Radiator movement 18-EX 10,000 miles - condition taken as 100% | |---|---|---|---|---| | (1) Four Phantom type flexible rubber engine feet. | Chassis test kit. | Canvas scuttle ballast over rear spring centre. | Attached as design. | NIL. | | (2) As above (1) | As above. | Mass of 200 lbs; attached each side of frame over front subframe brackets. | As above (1) | NIL. | | (3) As above (1) | Covered test limousine body. | Bolted directly to frame without subframe. | As above (1) | 5% | | (4) As above (1) | Enclosed Barker Limousine. | Mounted on std. subframe with normal rubber pads i.e. in 18-EX original 10,000 miles condition. | As above (1) | 100% | | (5) Four torsional stiff rubber engine feet. | As above (4) | As above (4) | As above (1) | 20% | | (6) As above (5) | As above (4) | Solid alum. packings under front subframe supports scuttle bolted solid to dash. | As above (1) | 10% | | (7) As above (5) | As above (4) | Body single point mounted at front flexible semi-isolation scuttle to dash. | As above (1) | 7% | | (8) As above (5) | As above (4) | As above. | Cross torsional rigidity removed. | 2% | | (9) As above (5) | As above (4) | Mounted on std. subframe with normal rubber pads. | As above. | 5% | In addition, removing the tie rods, tightening up the WW. dampers behind the gearbox and increased cross steering tube friction all appeared to reduce radiator movement. | ||