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).
Fitting of contact breakers with tungsten contacts to Watford B.6 type magnetos.
| Identifier | ExFiles\Box 35\5\ scan 044 | |
| Date | 3rd September 1918 | |
| R.R. 235A (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. To EFC. from RHC.{R. H. Coverley - Production Engineer} C.C. to EH. [struck through] RHC{R. H. Coverley - Production Engineer}1/LG3.9.18. 3rd. Sept. 1918. RE CONTACT BREAKER - CONTACTS IN TUNGSTEN. X.2894 The above Contact Breakers with Tungsten Contacts have been fitted to "Watford" B.6. type magnetos as follows:- Magneto No. 4121 - fitted with L.454 contacts. Magneto No. 4010 - fitted with 425 contacts. These have been passed into the Experimental Dept: Stores. RHC.{R. H. Coverley - Production Engineer} [Signature] | ||