Blueprint with handwritten calculations for weight saved by substituting uprights and adding a Birmabright cover.
| Identifier | ExFiles\Box 175\3\ img059 | |
| Date | 6th July 1942 guessed | |
| SCHEDULE ITEM PART N° DRG. REF. DESCRIPTION MATERIAL SIZE AND GAUGE BY SUBSTITUTING - 5' - 6" x 3/4" UPRIGHTS — WEIGHT SAVED = 128LBS 16G BIRMAL TO COVER — ADDED Wt = 16LBS NETT WEIGHT SAVED = 112LBS I CWT K21 A A' | ||
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).