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 of acoustic noise meter readings comparing Bentley and Terraplane cars with various ambient noise levels.
Identifier | ExFiles\Box 138\1\ scan0104 | |
Date | 16th June 1934 | |
ACOUSTIC NOISE METER READINGS DECIBELS BENTLEY TB IV TERRAPLANE SIX SPEED IN TOP GEAR M.P.H. GRINDING SHOP CAR ERECTING BAY PNEUMATIC HOSE CHASSIS DESIGN OFFICE E'S & H'S OFFICES HY{Tom Haldenby - Plant Engineer}'S OFFICE WAITING ROOM COUNTRY ROAD HR 91 ELLS 16 VI-34 | ||