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).
Relocation of the Spectre Petrol Filter from the dashboard to the chassis to prevent vapour locks.
| Identifier | ExFiles\Box 135\2\ scan0109 | |
| Date | 16th August 1935 | |
| GRY{Shadwell Grylls} (Strikethrough) B.W.G To RHC.{R. H. Coverley - Production Engineer} from E/JNR.{Charles L. Jenner} c.c. PY. (Strikethrough) Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Ia. E/EV.{Ivan Evernden - coachwork} (Strikethrough) E/JNR.{Charles L. Jenner}13/HP.16.8.35. SECRET. re SpectreCodename for Phantom III Petrol Filter. The test which is running in France has proved that the filter cannot be mounted on the dashboard, the under bonnet temperature causing vapour locks. There are very few alternative positions where we can mount the filter on the chassis to meet the requirements as regards accessibility, and yet be in a cool position. We have worked on a design as suggested by Hs.{Lord Ernest Hives - Chair} placing the filter on the outside of the frame on the offside just forward of the hand brake lever and underneath the body valance, as shown on LeC.4645. It will necessitate a hinge door being provided in the valance for use when cleaning the filter. Will you please work to this modification for all your chassis in hand. [Handwritten note:] File instructed for SpectreCodename for Phantom III & SpectreCodename for Phantom III 'L' at 1st opportunity 17/8/35 HP E/JNR.{Charles L. Jenner} Blueprint to RHC.{R. H. Coverley - Production Engineer} Blueprint to LA.{L. A. Archer} | ||