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 detailing hydraulic shock damper tests with various restriction configurations and pressure results.
| Identifier | ExFiles\Box 68\2\ scan0222 | |
| Date | 14th April 1928 guessed | |
| HYDRAULIC SHOCK DAMPER TESTS HIGH PRESSURE - EQUIVALENT PISTON VELOCITY 14"/SEC. PORT IN CYLINDER OPENED OUT TO .500" DIA: 2.500" DEEP RESTRICTION "A" .201" DIA .500" DIA RESTRICTION "B" .201" DIA .225" CTS{C. Trot Salt - Carburation} .500" DIA RESTRICTION "C" GUIDE PIN HOLE .218" DIA .110" CTS{C. Trot Salt - Carburation} .500" DIA ALL RESTRICTIONS .150" THICK. DISTANCE PIECES. .500" DIA .437" DIA TEST 1.H. SIX RESTRICTIONS :- A & B. ALTERNATE E=.200" PRESSURE 500 LB/SQ" TEST 2.H. SEVEN RESTRICTIONS - "C". E=.250" PRESSURE 725 LB/SQ" TEST 3.H. SIX RESTRICTIONS - "C". E=.300" PRESSURE 675-700 LB/SQ" TEST 4.H. THREE RESTRICTIONS - "C". E=.600" PRESSURE 475 LB/SQ" TEST 5.H. SEVEN RESTRICTIONS - "C". E=.200" PRESSURE 725-750 LB/SQ" TEST 6.H. EIGHT RESTRICTIONS - "C". E=.200" PRESSURE 825 LB/SQ" DESIRED RESULT TEST 7.H. SAME AS FOR 6.H. BUT WITH E=.300" PRESSURE 800 LB/SQ" PRESS. TEMP TEST. 7 & 8 H.{Arthur M. Hanbury - Head Complaints} TABLE: T.2. AIR TEMP C° = T1 - 10°C | T.1. OIL TEMP C° | PRESS. LBS/SQ" 6.H.A. | PRESS. LBS/SQ" 7.H.A. 1° | 11°C. | 825 | 800 23° | 33°C. | 825 | 760 33° | 43°C. | 820 | 750 48° | 58°C. | 800 | 750 60° | 70°C. | 775 | 720 ALL TESTS COMPRESSOR OIL PRICES MOTORINE C AT 15°C = COMPRESSOR OIL AT 0°C OR AIR TEMP -10°C. PRESS. 7 H.A. = 825 LBS/SQ" | ||