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 two pipe assemblies, one standard and one for a 25 HP application with a fishtail exhaust.
| Identifier | ExFiles\Box 14\6\ Scan246 | |
| Date | 22th April 1932 guessed | |
| 3 40/50 HS{Lord Ernest Hives - Chair} 589 STRAIGHT THROUGH PIPE E 80256 DIA SLIDING JOINT AND PIPE AS STANDARD E 82573 FLANGE TO SUIT E 79333 BELOW 25 HP AT B & C DRILL TWO ROWS OF .5" DIA HOLES, ONE ROW 1.00" EACH SIDE OF DIMENSION GIVEN HOLES TO BE DRILLED AS SPECIFIED LATER AT A & B STRAIGHT THROUGH TUBE DIA AS E 57285 SLIDING JOINT AND THIS PIPE AS ON LOPES 7576 FLANGED JOINT TO BE E 79333 HS{Lord Ernest Hives - Chair} 588 HS{Lord Ernest Hives - Chair} 587 FISHTAIL 14.9 16.0 A B C 82" 48.5 32" | ||