Horsepower diagram from tests on a 1927 La Salle Sedan, detailing engine performance and power requirements under various conditions.
| Identifier | ExFiles\Box 22\4\ Scan011 | |
| Date | 22th July 1928 | |
| HORSEPOWER DIAGRAM - 1927 LA {L. A. Archer} SALLE SEDAN (L.E.C) FROM TESTS MADE AT MASON LAB. YALE UNIV. NEW HAVEN. CONN. Nov. 1927 SER No.373 8 CYL V-TYPE ENGINE, 3/8 x 4 15/16 DISPL. 303 CU-IN. GEAR RATIO 4.54. TIRE O.D. 31.2". CAR WGT. 4520LB EXPLANATION A. {Mr Adams} ENGINE HP OPEN THROTTLE (100 LB) HIGH COMP ETHYL GAS B. ENGINE HP OPEN THROTTLE (82 LB) STANDARD "ATLANTIC" C. ENGINE HP CLOSED THROTTLE D. {John DeLooze - Company Secretary} HP REQUIRED BY TRANSM. & REAR TIRES E. {Mr Elliott - Chief Engineer} HP REQUIRED BY TRANSM. & REAR TIRES ON LEVEL ROAD DRIVER ONLY F. {Mr Friese} HP REQUIRED BY TRANSM. & REAR TIRES ON 5 P.C. UP GRADE DRIVER ONLY G. {Mr Griffiths - Chief Accountant / Mr Gnapp} HP REQUIRED BY TRANSM. & REAR TIRES ON 10 P.C. UP GRADE DRIVER ONLY H. {Arthur M. Hanbury - Head Complaints} H.P REQUIRED ON 15 P.C UP GRADE DRIVER ONLY I. H.P REQUIRED ON 5 P.C DOWN GRADE DRIVER ONLY J. {Mr Johnson W.M.} H.P REQUIRED ON 10 P.C DOWN GRADE DRIVER ONLY K. {Mr Kilner} H.P REQUIRED ON 15 P.C DOWN GRADE DRIVER ONLY L. MAX CAR SPEED STILL AIR ON LEVEL ROAD M. {Mr Moon / Mr Moore} MAX CAR SPEED STILL AIR ON 5 P.C UP GRADE N. MAX CAR SPEED STILL AIR ON 10 P.C UP GRADE HORSEPOWER POSITIVE HORSEPOWER NEGATIVE CAR SPEED, M.P.H. ENGINE SPEED, R.P.M. STAMP: RECEIVED 22 JUL 1928 | ||
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).