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).
Bentley fan blade measurements from quietness and running tests.
| Identifier | ExFiles\Box 86\5\ scan0018 | |
| Date | 14th March 1934 | |
| X 224 To E.{Mr Elliott - Chief Engineer} From Hs{Lord Ernest Hives - Chair}/GWH.{George W. Hancock - Head Chateauroux} c.c. to By.{R.W. Bailey - Chief Engineer} c.c. to Slt. c.c. to Hx. c.c. to E.{Mr Elliott - Chief Engineer} Hs{Lord Ernest Hives - Chair}/GWH.{George W. Hancock - Head Chateauroux}7/KW.14.3.34. BENTLEY FAN. From tests made for quietness, and running 10,000 miles in France on 1-B-IV, 9.12.33, the measurements were given that the top blade to be 1.125" from the matrix and the bottom blade to be .750" from the matrix. Hs{Lord Ernest Hives - Chair}/G.W.Hancock. | ||