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).
Polar diagram showing the main bearing loads for the Condor III engine.
| Identifier | ExFiles\Box 103\3\ scan0021 | |
| Date | 16th July 1924 | |
| D.E.S. 486 ¢ OF "B" UNIT CYLS. ¢ OF "A" UNIT CYLS. DIAGRAM OF CRANKS ARRANGEMENT OF BEARINGS I.M.E.P. = 0 LBS./□" MAX PRESS = 704 LBS/□" MEAN PRESS = 571 LBS/□" 1900 R.P.M. Nº 1 & Nº 7 BEARINGS 3.000" DIA x 1.800" LONG PROJECTED AREA = 5.400 SQ. IN. I.M.E.P. = 0 LBS./□" I.M.E.P. = 161 1/2 LBS./□" DATA CONN. ROD CENTRES = 13.000" RECIPg WEIGHT = 5.200 LBS. PER CYL ROTATING WEIGHT = 7.070 LBS. CENTRIFUGAL FORCE OF CRANK = 2677 1/2 LBS. CENTRIFUGAL FORCE OF BALANCE WT = 1550 LBS. I.M.E.P. = 161 1/2 LBS/□" MAX PRESS = 760 LBS/□" MEAN PRESS = 517 LBS/□" POLAR DIAGRAM OF MAIN BEARING LOADS. CONDOR III ¢ OF BALANCE WEIGHT FOR Nọ 3 & Nọ 4 CRANKS ¢ OF BALANCE WEIGHT FOR Nọ 1 & Nọ 6 CRANKS 30° 1&6 2&5 3&4 Stamp: ROLLS-ROYCE, LIMITED PRINT ROOM, 7 JAN '31 DERBY. | ||