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).
Proposal for modifying the cooling system by supplying water directly to the cylinder head.
| Identifier | ExFiles\Box 65\4\ scan0378 | |
| Date | 6th December 1927 | |
| DRAWING NO. S.K. 165 SEE ALSO THE FOLLOWING OPERATION DRAWINGS U322 U321 BRASS NOZZLES IN CYLINDER TO BE REMOVED AND POSSIBLY ADDITIONAL WATER HOLES DRILLED TO GIVE FREER PASSAGE OF WATER TO CYLINDER JACKETS. BLANK PLATES WHICH MAY BE FITTED WITH DRAIN PLUGS. IT MIGHT BE FOUND DESIRABLE TO CUT OFF THIS PIPE ENTIRELY, FEEDING TO REAR END OF HEAD ONLY. PROPOSAL FOR SUPPLYING WATER DIRECT TO HEAD SEE Gy 2/R.{Sir Henry Royce} 12 6 27 DRAWN BY: Gy MODEL SEC.: 5050 SCALE BRINELL MACHINE ALL OVER TRACED BY CHECKED BY APPROVED BY WEIGHT HEAT TREAT STANTON MACHINE WHERE MARKED ||| DRAWING NO. S.K. 165. DATE: Dec 6 / 27 TITLE: Cylinders & Head MATERIAL SPECIFICATION NO. OFF LIMITS ROLLS-ROYCE OF AMERICA, INC. | ||