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).
Experiment to add bolted-on balance weights to a Goshawk crankshaft.
| Identifier | ExFiles\Box 103\3\ scan0187 | |
| Date | 30th January 1934 | |
| To RHC{R. H. Coverley - Production Engineer} c. Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} c. BY/EDT. X5010 GRX BY/CS6/EH.30.1.34. Re Goshawk - Crankshaft - Section 4010. Additional (Bolted-on) Balance Weights R.R.Sch.606. Further to our memo BY/CS8/EH.29.1.34, please receive herewith blue prints of R.R.Sch.606, and of the following drawings, detailed to this scheme. E.42797 Balance Weight - Large E.42798 " " - Small E.42799 Bolt - Balance Weight E.42800 Nut - Balance Weight Bolt Will you please instruct up as required, together with the following standard part which will also be required:- K.4711 Split Taper Pin 12 off. This completes the instruction for this experiment, which consists of adding weights to a crankshaft web of standard profile, in order to more completely to balance out the rotating masses. BY/CS. | ||