CORRESPONDENCE. HIGH SPEED ON RAILWAY CURVES AND A PRACTICAL METHOD FOR THE IMPROVEMENT OF EXISTING RAILWAY CURVES

R APPLEYARD, J EUSTICE, M FITZGERALD, A MALLOCK, E H MORRIS, R J G READ, A C SHAND, P C STEWART, W SWEETMAN, E TREACHER, J S WARNER, L F WELLS (+4 others)
1909 Minutes of the Proceedings of the Institution of Civil Engineers  
Mr. Rollo towards accuracy might be taken. I n his equation (26) Mr. Spiller Appleyord. expressed V, the critical speed of climbing, as a function of to/w, where W was " the weight of wheel and load," and W was "the total weight of the engine ; and in order to interpret V numerically, he estimated the minimum value of W as being W / 15. Next,by assuming that the minimum value of tu/ W, corresponding with this minimum value of to, might be regarded as constant, Mr. Spiller obtained equation (27)
more » ... ained equation (27) , and he applied this equation as a general criterion of the limiting speed for climbing, for comparison with the limiting speed for overturning. He then went so far as to conclude that in the case of the Salisbury accident-which otherwise was clearly a t variance with his result-derailment by climbing was prevented by Pig. 10.
doi:10.1680/imotp.1909.17672 fatcat:vogkt47ewzdcdfbkrsnxofwpde