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 showing principal dimensions of a Stutz Crankshaft.
| Identifier | WestWitteringFiles\R\2December1927-February1928\ Scan073 | |
| Date | 20th December 1927 guessed | |
| STUTZ CRANKSHAFT (PRINCIPAL DIMENSIONS) FIG. II SECTION ON A-B FLYWHEEL DIAM: 12.6875" DIMENSIONS ON DIAGRAMS: 1&8 2&7 3&6 4&5 5.32" 3.52" 2.50" 1.00" 20° 1.46" 2.375" 1.320 No 2 .650 LENGTH OF CRANKSHAFT BEARINGS:- No 1 = 3.750. No 5 = 1.81". No 9 = 2.750". Nos 2.3.4.6.7.8 = 1.320". ACTUAL LENGTH OF BEARING SURFACE:- No 1 = 3.531. No 5 = 1.562". No 9 = 2.500". Nos 2.3.4.6.7.8 = 1.062". DISTANCE BETWEEN CYLINDER CENTRES:- Nos 4 & 5 = 4.57". REMAINDER 4.08". CRANK THROWS = 2.250 (STROKE = 4.50) FIRING ORDER 1-6-2-5-8-3-7-4 WEIGHT OF CRANKSHAFT FLYWHEEL AND CLUTCH COMPLETE = 165 lbs 2 ozs. WEIGHT OF FLYWHEEL = 47 lbs (APPROX) AHP (initials) | ||