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).
Proposed modification to Phantom II batteries to facilitate carrying by elongating the slots.
| Identifier | ExFiles\Box 168b\3\ img038 | |
| Date | 27th February 1931 | |
| X-1-55 PHANTOM II BATTERIES .875 1.687 CRS 1.125 3/32" RAD .125 RAD PROPOSED MODIFICATION TO P&R RRN & EXIDE 3RR S-1L BATTERIES GIVING LONGER SLOTS TO FACILITATE CARRYING PRICE L DRAFT ROOM 27 FEB 1931 | ||