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).
Confirming the decision to dynamically balance all fans using a special machine from Giesler's.
| Identifier | ExFiles\Box 86\5\ scan0056 | |
| Date | 15th July 1935 | |
| BY.{R.W. Bailey - Chief Engineer} [struck through] c. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} G.{Mr Griffiths - Chief Accountant / Mr Gnapp} Mx.{John H Maddocks - Chief Proving Officer} [struck through] - from Sft.{Mr Swift} X224 Rm{William Robotham - Chief Engineer} [handwritten] Sft{Mr Swift}/1/MW.15.7.35. CHASSIS - RE. BALANCING OF FANS. With reference to your memo. BY.13/G.3.5.35. will you please note that we have now settled all the points in regard to this job and in addition have in operation the special machine from Giesler's. You can therefore, take it from now that all fans will be balanced dynamically. Sft.{Mr Swift} [Signature] | ||