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).
Weight comparison of Peregrine road springs from Firth and Woodhead.
| Identifier | ExFiles\Box 2\11\ B002_X146-page7 | |
| Date | 28th December 1932 | |
| Y 146. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} 28.12.32. WEIGHT OF PEREGRINE ROAD SPRINGS. Front. Firth.................. 17¼ lbs. Woodhead with curled ends 18¾ lbs. Difference..Firths 1½ lbs. lighter. Rear. Firth.................. 42¾ lbs. Woodhead with curled ends 38¾ lbs. Difference..Woodhead 4 lbs. lighter. Total difference of 4 springs. - Woodhead 5 lbs lighter. Hs{Lord Ernest Hives - Chair}/Les.{Ivan A. Leslie} | ||