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).
Comparative tests on aluminium pistons and short connecting rods following a reduction in the Eagle engine program.
| Identifier | ExFiles\Box 35\2\ scan 047 | |
| Date | 20th January 1919 | |
| H (200 T) (S. Y. 163 25-10-18 G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2244 X2748 January 20. 1919. B.H. from BY.{R.W. Bailey - Chief Engineer} c. EFC. c. Worr. c. BP. BY2/P20119. X3400 CHASSIS. RE ALUMINIUM PISTONS & SHORT CONN RODS. In view of the intimation we have received from the Government, that we are to cut out 668 more Eagle engines from the programme, will you kindly note the increased importance of the above experiment. No effort should be spared to finish off the comparative tests taken between long connecting rods, plus aluminium pistons and short connecting rods, plus aluminium pistons - the same design and weight of piston being used in each experiment. Of course, the real point to be tested out is the question of torque reaction, as in other directions the balance will be unaffected. BY.{R.W. Bailey - Chief Engineer} | ||