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).
Feedback and proposed solutions for the Goshawk II engine.
| Identifier | Morton\M1.1\ img010 | |
| Date | 8th August 1921 | |
| To HS.{Lord Ernest Hives - Chair} from R.{Sir Henry Royce} Copy to CJ. [Struck through] " " BY.{R.W. Bailey - Chief Engineer} [Struck through] " " DA.{Bernard Day - Chassis Design} [Struck through] X4219 RE "GOSHAWK II" - (HS{Lord Ernest Hives - Chair}3/LG4/8/21) R10/G8/8/21. 2. I am very grateful to you for working on "Goshawk II" during the holidays. This is so different from the behaviour of a few of the staff that it is quite refreshing. Naturally I am delighted that you should find that the engine is satisfactory for power and silence. Many of the small defects we can easily rectify. I am also very pleased to receive your criticisms, but I hope some of them can soon be cleared away. (1) RE LONG HOLDING DOWN STUDS. These ought not to be liable to breakage, although they might appear to owing to their great elasticity. I would like you to treat them roughly as you would expect in practice, and see if they come to any harm. You will realise that their flexibility is a source of strength. They are not weaker from a tension and torsion point of view than similar size studs which are short. In the world there are plenty of very long bolts and tie rods used which ought to be working under somewhat similar conditions. In automobile and aero engines there are studs quite as long proportionately and also even of smaller sizes. We hope therefore this is a specimen of over-anxiety. We should have preferred that they were of larger size, but it will be remembered that this would add to the bulk of cast iron very materially, and in certain positions would limit the gas passages. (2) RE TUBES IN WATER JACKETS. We hope you will find these of less trouble when you get used to them. We will look into the matter to see whether we can suggest any other scheme. At present I believe they are thin tubes with conical plugs to reinforce the joint. We (Contd.) R R 3397 (90 L) 2'H 380' 16-5-21) C 2002 | ||