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).
Particulars of 40/50 and EAC steering systems, including movement calculations.
| Identifier | ExFiles\Box 67\3\ scan0082 | |
| Date | 15th February 1925 guessed | |
| BY furnished the following particulars of 40/50 and EAC Steering. 40/50 - Steering. ---------------- Worm - 1.125 lead (3 starts) - 9.000 Pendulum Lever. - 34º Lock. - 8.000 Steering Lever. - 39º Lock. Movement of Pendulum Lever & Rocker. 9.000 - 8.000 - 34º = 30.22º R.H.Lock) 60º approx: total movement. 9.000 - 8.800 - 33º = 29.33 L.H.Lock) Movement of Steering Nut. 4.124x 3.1416 x 30.22º -1.087 R.H. 360 n4.124 x 3.1416 x 29.33 -1.055 L.H. 360 Movement of Steering Wheel. 1.087 - .966 Revs: R.H. 1.125 1.055 - .937 Revs:L.H. 1.125 EAC. - Steering. ( "V" Series) ------------------------------------ Worm - 1.125 lead (4 starts) - 9.500 Pendulum Lever. - 34º Lock. - 8.000 Steering Lever. - 39º Lock. Movement of Pendulum Lever & Rocker. 9.500 - 8.000 - 34º = 28.63º R.H.Lock) 56.42º total angular movement. 9.500 - 8.000 - 33º = 27.79 L.H.Lock) Movement of Steering Nut. 4.6 x 3.1414 x 28.63º -1.146 R.H. 360 4.6 x 3.1416 x 27.79º -1.114 L.H. 360 Movement of Steering Wheel. 1.146 - 1.012 Revs: R.H. 1.125 1.114 - .990 Revs: L.H. 1.125 | ||