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).
Bonnet design specifications for the Spectre model, covering different angles, shutters, and louvres.
| Identifier | ExFiles\Box 92\6\ scan0265 | |
| Date | 14th June 1935 | |
| SECRET. X305 To BY.{R.W. Bailey - Chief Engineer} Copy to Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} RHO E/Ev.{Ivan Evernden - coachwork}2/MN.14.6.35. SPECTRECodename for Phantom III BONNETS. ---------------- We send herewith LeC 4529 and LeC 4539 showing respectively a 15½º and a 7º bonnet for SpectreCodename for Phantom III. We are arranging to have a 15½º bonnet for Continental Touring Saloons and similar bodies, and in the place of the normal vertical bonnet we shall have as the standard bonnet a 7º slope. It has been agreed that on all bonnets flip-flap shutters will be standard, the axis of rotation being parallel to the sloping edge of the flap. When the customer requires louvres these will be put on as dummies by the coachbuilder in the form of an extruded aluminium section screwed on from the back. We show a recommended shape of louvre for the coachbuilder to use. Ev.{Ivan Evernden - coachwork} Att: LeC.4529. LeC.4539. | ||