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).
Issues with radiator triangulation and proposing an improved scheme for the Phantom III.
| Identifier | ExFiles\Box 94\3\ scan0077 | |
| Date | 20th August 1936 | |
| HS{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} from E.{Mr Elliott - Chief Engineer} c.c. Da.{Bernard Day - Chassis Design} JNR.{Charles L. Jenner} x 340 STEADMAN E.12/HP.20.8.36. Written Hs{Lord Ernest Hives - Chair}/STD Phantom III Radiator Construction. Referring to report Hs{Lord Ernest Hives - Chair}/Std.8/MA.4.8.36, the scheme of triangulation behind the radiator which you are trying out is only completed up to the level of the headlamps. Above this locality the location of the mudguard, the wings lamps and radiator has to be taken care of by the bending of the sidemembers of the radiator yoke. This does not appear to me to be satisfactory as it may eventually result in a fracture at the points of maximum stress in normal use or in the case of any heavy load being thrown on to one wing the radiator yoke may collapse and throw the load on to the matrix. This in its turn may lead to local bruising of the matrix followed by leakage. If you have rigged up a car on these lines I suggest that you apply adequate tests to determine these points. It is not usual for example for people to ride on the wings of a car, but it would be very annoying if such an event did happen, to find that it resulted in a failure of the radiator unit. We have prepared a scheme in which the triangulation is carried out up to the top of the yoke in such a manner that the side control loads are minimised and referred through the top member of the yoke to the anchorage connected the triangulated tubes passing to the dash. E.{Mr Elliott - Chief Engineer} | ||