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 on a Bentley Bumper Bar Sling and its effectiveness.
| Identifier | ExFiles\Box 118\2\ scan0260 | |
| Date | 23th March 1936 | |
| X1023 To R.{Sir Henry Royce} c. to Wor.{Arthur Wormald - General Works Manager} c. to Ry. c. to By.{R.W. Bailey - Chief Engineer} c. to Da.{Bernard Day - Chassis Design} c. to EV.{Ivan Evernden - coachwork} c. to Hx. c. to Hs{Lord Ernest Hives - Chair}/GWH.{George W. Hancock - Head Chateauroux} Ha/PJH.8/KW.23.3.36. Bentley Bumper Bar Sling. We have tested the above scheme LeC.5016 and are satisfied that it fulfills its purpose of catching the bumperbar. The test was carried out on a rough road at speeds of 40, 50, 60 and 75 m.p.h. by releasing the bumper bar at one end so that it fell on to the sling. The tests were first done with the U clip at the opposite end of the bumper tight, and then with this clip loose. In all cases the bumper bar was satisfactorily caught. There is, however, no rattle audible from the inside of the car and the driver is unaware that anything has happened until the speed falls to 5-10 m.p.h., when there is a slight rattle which can be heard when the windows are open. As requested in E/Ev.{Ivan Evernden - coachwork}2/MN.2.3.36, we have proved that the U clip attachment of the sling to the front crossmember is stronger than the sling itself, so that it is unnecessary to carry the sling back to the headlamp crossmember. Ha/F.J.Hardy. | ||