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).
The use of an adjustable exhaust nozzle on the 25 HP and Phantom chassis.
| Identifier | ExFiles\Box 104\2\ scan0085 | |
| Date | 7th May 1934 | |
| X5230 To By/Cgh.{W Clough} Hs{Lord Ernest Hives - Chair}/GWH.{George W. Hancock - Head Chateauroux}9/KW. 7.5.34. Re. 20/25 & 40/50 Chassis, Exhaust Nozzle. We see no reason why the adjustable exhaust nozzle should not be instructed for the 25 HP chassis as well as the Phantom. We have run a fair mileage with this scheme on 21-G-IV and it has not given any trouble or shown any defects. The one fitted to the Phantom 28-EX has been entirely satisfactory. We have issued Standardisation Sheets for both cars. Hs{Lord Ernest Hives - Chair}/G.W.Hancock. | ||