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).
Graph showing the results of a test with a long exhaust pipe on an engine.
| Identifier | ExFiles\Box 5a\3\ 03-page188 | |
| Date | 25th November 1931 guessed | |
| TEST WITH LONG EXHAUST PIPE R.2.A1. ENGINE ON NO.2 HANGAR Graph Labels: IDLE CLIMB CRUISE TAKE OFF Axis Labels: 0.0 Secs 0.5 Secs 1.0 Secs MAX 1.5 Secs 2.0 Secs 2.5 Secs 3.0 Secs 3.5 Secs 4.0 Secs | ||