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).
Comparison of electrical cut-outs from Lucas, Smith, and Bleriot, detailing prices, reliability, and test results.
| Identifier | ExFiles\Box 50\1\ Scan030 | |
| Date | 1st July 1922 | |
| -6- Contd. Electrical cut-outs. Lucas cut-out. Quoted quantity price of cut- out unit alone 12.6d. but this does not include case and terminals which would be required if the item were used as an independent unit. Somewhat variable in operation and liable to failure, e.g. at contacts. Weight 12oys Smith cut-put. with all the minor improvements which R.R. would require. Quantity price £1.13.9 each. One of these went on 4 Ex to U.S.A. and has done 6000 miles O.K. Others without the R.R. modifications have shown up well on test. We are about to receive two further cut-outs with the R.R. modification. Weight 23 oys Bleriot cut-out (X.4215). Two samples giving good results. Further samples to hand and awaiting test. Thought highly of by R.{Sir Henry Royce} Quantity price £1.13.6. Weight 18oys Contd. SOWB 12-10-21-WRC 24 36: L 600 7-22 R H | ||