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).
Layout and illumination of the 20/25 HP instrument board.
| Identifier | ExFiles\Box 62\2\ scan0043 | |
| Date | 5th February 1932 | |
| X6135 W/S c. Sg.{Arthur F. Sidgreaves - MD} c. Hore c. Hs.{Lord Ernest Hives - Chair} c. Hmr. BY/Cgh.{W Clough}6/G.5.2.32. RE: 20/25 HP. INSTRUMENT BOARD. With reference to Cx.{Major Len W. Cox - Advertising Manager}11/KW.4.2.32. although from the front view of the panel it would appear possible to put the instruments much nearer, this is not so, as it is the size of the backportion of the instruments which determines the space required. The flanges of the instruments at the back of the panel are practically touching, and the flanges are as small as considered practicable. In addition all the instruments are as close together as possible, and if we were to set the two instruments at the bottom of the panel further apart as suggested, these would have to be lower. The panel will be illuminated by two small lamps behind the mount similar to what we have on Phantom ll, except that clear glass bulbs will be used. BY/Cgh.{W Clough} | ||