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).
Performance graph for a Bensport Petrol Pump, comparing two different delivery pipe diameters.
| Identifier | ExFiles\Box 27a\2\ Scan164 | |
| Date | 2nd May 1933 | |
| GRAPH II BENSPORT PETROL PUMP - LEC. 3417. SUCTION SYSTEM SAME AS ON CHASSIS - SEE GRAPH I DELIVERY PIPES 1/4" AND 5/16" DIA. SAME LENGTH AS ON CHASSIS, BUT HORIZONTAL - HEAD NIL CAM STROKE .203" 5/16" DIA DELIVERY PIPE 1/4" DIA DELIVERY PIPE DELIVERY PTS. / HR. PUMP R.P.M. | ||