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 of main bearing loads for the Condor III engine.
| Identifier | ExFiles\Box 103\3\ scan0018 | |
| Date | 18th May 1923 | |
| 'N' SCHEME. 1583 POLAR DIAGRAM OF MAIN BEARING LOADS CONDOR III DIAGRAM OF CRANKS ¢ OF 'B' UNIT CYLS IMEP { MAX PRESS 772 LBS/□" 0 LBS/□" { MEAN PRESS 656 LBS/□" --- IMEP = 0 LBS/□" — IMEP = 16 1/2 LBS/□" 1900 R.P.M. Nº 2 & Nº 3 BEARINGS 3.000" DIA x 1.900 LONG PROJECTED AREA = 5.700 □" IMEP { MAX PRESS = 1310 LBS/□" 16 1/2 LBS/□" { MEAN PRESS = 710 LBS/□" ¢ OF 'A' UNIT CYLS 1 & 6 2 & 5 3 & 4 120° 28.5 32.4 IMEP { MAX PRESS 772 LBS/□" 0 LBS/□" { MEAN PRESS 656 LBS/□" --- IMEP = 0.LBS □" — IMEP = 16 1/2 LBS □" 1900 R.P.M. Nº 5 & Nº 6 BEARINGS 3.000" DIA x 1.900 LONG PROJECTED AREA = 5.700 □" MAX. PRESS 1310 LBS/□" { IMEP MEAN PRESS 710 LBS/□" { 16 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 = 2677.500 LBS. ARRANGEMENT OF BEARINGS 1 2 3 4 5 6 7 Diagram Scale: 100 200 300 400 500 600 700 800 900 1000. LBS □" Stamp: ROLLS-ROYCE, LIMITED PRINT ROOM, 7 JAN '21 Handwritten: R.A.G. 18-5-23 'N' SCHEME. 1583 | ||