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).
List of brake experiments showing the status and intended vehicle for various components.
| Identifier | ExFiles\Box 85\1\ scan0003 | |
| Date | 11th January 1936 | |
| To RHC.{R. H. Coverley - Production Engineer} c. to Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} x206 s/AFM.{Anthony F. Martindale}1/EW.11.1.36. Brake Experiments. The following is a list of brake experiments showing their position and the car on which they should be carried out. Drums. Aluminium Composite Drum (rear) 1 finished ) 1-B-IV. 3 instructed) Helical Ribs Finished 3-B-IV. Bentley forged 0.9% carbon steel Instructed B-23-AE. (rear) Bentley cast-iron H.R. alloy (front Projected 4-B-IV. and rear) Ph.III stiffened rear drums Fitted 32-EX. Finished, ready) (33-EX. for fitting ) (35-EX. (30-EX. Shoes. Steel shoes with roller actuation. Instructed B-23-AE. Wraith type steel shoes. Being drawn Vulture. Oilite Bushes. For bell cranks on carrier plate Fitted 32-EX. " 33-EX. " 36-EX. Finished, ready 35-EX. for fitting Rivets. Brake lining rivets in contact Projected All cars with drum, new material. with steel shoes. | ||