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).
Foundry scrap report for Spectre and Merlin engine components, detailing casting production, usage, and rejection reasons.
| Identifier | ExFiles\Box 93\4\ scan0008 | |
| Date | 28th January 1935 | |
| SPECTRECodename for Phantom III +319 28.1.35. Cylinder Heads - Foundry scrap 42% 21 Castings produced 8 used | No. Cast | No Used | Foundry Scrap | Remarks | |-----------|---------|---------------|-------------------------------------------------------------------------| | E.{Mr Elliott - Chief Engineer} 84727 | 15 | 6 | 9 | 3 scrap in Foundry blown on Guide Faces. 6 scrap on water test on Top Face. | | E.{Mr Elliott - Chief Engineer} 86440 | 6 | 2 | - | 1 machine scrap - Spark hole too deep. 3 not tested. | Crankcases - Foundry scrap 71% 7 Castings produced. 2 used. | E.{Mr Elliott - Chief Engineer} 86430 | 3 | 1 | 2 | 1 scrap due to chills being fast. 1 scrap on water test - porous around Camshaft Oil Feed Bosses. | | E.{Mr Elliott - Chief Engineer} 85881 | 1 | 1 | - | This casting was plugged around Camshaft Oil Feed Bosses. | | E.{Mr Elliott - Chief Engineer} 84917 | 3 | - | 3 | 3 scrap on Water Test - badly porous over No.4. bearing and by Oil Feed Bosses. | P.V. (MERLIN) - Foundry scrap Ramp & Pancake Cylinder Heads 73% Ramp Cylinder Heads (33 castings produced. 8 used.) | D.{John DeLooze - Company Secretary} 3211/2 | 15 | - | 13 | 6 scrap in Foundry - Blow holes in Top Face. 6 scrap on Water Test - porous on Top Face and in ports. 1 scrap in Fettling. 2 Passed 1st. Water Test. | continued. | ||