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).
Blueprint comparing a present Condor block with a proposed separate cylinder design with a tubular steel skirt.
| Identifier | ExFiles\Box 173\1\ img196 | |
| Date | 3rd February 1934 | |
| ALL LINERS BEING TRULY PERPENDICULAR AND PARALLEL TO EACH OTHER. TOP - PRESENT CONDOR BLOCK. LOWER - PROPOSED SEPARATE CYL-ARREST. BOTH CYLS HAVE FLAT COMBUSTION CHAMBERS. PROPOSED CONSTRUCTION WITH TUBULAR STEEL SKIRT THREADED AND BRAZED. ALL VALVE POCKETS PROJECT AND SPIGOT IN ALUM HEAD. C & A WASHERS USED TO MAKE TOP WATER JOINT. HOLES DRILLED IN OUTER DIA. TOP OF LINER FOR WATER CIRCULATION. SPARK PLUG. DIAG STEPPED TO THREAD JACKET IN POSN. WATER CONN. HERE SIMILAR TO CONDOR. STUDS FOR BOLTING CYL. HEAD. ROLLS-ROYCE, LTD PRINT ROOM. 3 FEB 1934. DERBY. | ||