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).
Comparative table of weights for R.R. and 'Aerolite' Bentley pistons and their components.
| Identifier | ExFiles\Box 86\2\ scan0135 | |
| Date | 3rd November 1933 | |
| COMPARATIVE WEIGHTS R.R. AND "AEROLITE" BENTLEY PISTONS ROLLS-ROYCE, LTD PRINT ROOM 3 NOV 1933 DERBY. TYPE OF PISTON WEIGHT OF PISTON BARE WEIGHT OF RINGS WEIGHT OF GUDGEON PIN TOTAL WEIGHT AEROLITE 1ST DELIVERY 1 LB - 3 OZS 1.5 OZS 3.67 OZS 1 LB - 8.17 OZS AEROLITE 2ND DELIVERY 1 LB - 2 OZS 1.5 OZS 3.67 OZS 1 LB - 7.17 OZS R.R. STRENGTHENED PISTON E.B. 1299 1 LB - 0.5 OZS 1.75 OZS 3.74 OZS 1 LB - 5.99 OZS | ||