High oil temperature of the Peregrine engine and proposed cooling solutions.
| Identifier | ExFiles\Box 179b\1\ img209 | |
| Date | 6th December 1932 | |
| HS. {Lord Ernest Hives - Chair} FROM R. {Sir Henry Royce} [REDACTED] PEREGRINE(Experimental Bentley car never produced / Aero Engine) OIL TEMPERATURE. R2/s6.12.32. Sent off 9.12.32. In spite of the high oil temperature of the Peregrine(Experimental Bentley car never produced / Aero Engine) engine I think this small car is doing extremely well to cover as much as 660 miles in a day at an average speed of 45 MPH. I assume that you are trying some means of cooling the oil. It has been proposed to try the effect of ribs on the sump, even if space forbids, or a separate cooling tank, or a section of the radiator, bulging sides of sump, and I suggest seeing if it is possible to get some cool air under the radiator that will blow upon the crankchamber, because if effective it would cost very little. R. {Sir Henry Royce} | ||
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).