1937 New York, New Haven & Hartford
No. 1400 4-6-4
WITH THE increase of passenger traffic on the New Haven's Shore
Line requiring trains of fourteen to sixteen cars, the capacity
of the I4 Pacifics which had been used for twenty years was severely
taxed. As a result of tests with two of these engines with a twelve-car
train operating over the 156.8 miles between New Haven and Boston,
this new design was worked out. Much research went into these
studies, which included consideration of the 0.6 to 0.7 per cent
ruling grade near Sharon Heights outside of Boston, and the eventual
plans called for a locomotive which could maintain a 60-mile speed
over these grades with a twelve-car 830-ton train. Ten of these
Class I5 engines were delivered in 1937, being partly streamlined
but with maintenance accessibility in mind. They have been satisfactory
in every respect since they went into service and will probably
remain the last steam locomotives to be purchased by the New Haven.
Builder-Baldwin Locomotive Works
Cylinders-22" x 30"
Weight, total-647,300 lb.
Steam Pressure-285 lb.
Tractive Effort-44,000 lb.
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