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).
Specification sheet detailing the weights of Spectre engine connecting rods and pistons.
| Identifier | ExFiles\Box 96\4\ scan0033 | |
| Date | 6th November 1935 | |
| SPECTRECodename for Phantom III WEIGHTS CONNECTING-ROD WEIGHTS (RR. BZ. BEARINGS) WEIGHT IN LBS. TYPE OF ROD | ROD | PIECE NO | SMALL END | LARGE END | TOTAL WT. EACH ROD | TOTAL WEIGHT OF ASSEMBLY --- | --- | --- | --- | --- | --- | --- STRAPPED | PLAIN | E86118 | 0.5156 | 1.2187 | 1.7343 | 4.5936 LBS STRAPPED | FORKED | E86117 | 0.6093 | 2.250 | 2.8593 | CURVED FOOT | PLAIN | E.84682 | 0.5312 | 1.2031 | 1.7343 | 4.7186 LBS CURVED FOOT | FORKED | E.84681 | 0.6406 | 2.3437 | 2.9843 | WEIGHT OF SMALL END WITH ROD SUSPENDED AT 'A' WEIGHT OF LARGE END WITH ROD SUSPENDED AT 'B' NOTE! RODS ARE WEIGHED COMPLETE WITH BEARINGS, SMALL END BUSHES, BOLTS, NUTS & SPLIT PINS. PISTON WEIGHTS (Lop. E.86708) WEIGHT IN LBS. PISTON | GUDGEON-PIN WITH END CAPS | PISTON RINGS | TOTAL WEIGHT OF ONE PISTON --- | --- | --- | --- 1.2031 | 0.2851 | 0.0937 | 1.5819 LBS. E.87347 | E.76706 | EB.1493 ① EB.1494 ② | ROLLS-ROYCE, LTD. PRINT ROOM NOV 9 1935 DERBY. | ||