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Florida East Coast class 801
developed from USRA Heavy Mountain
United States | 1926 | 23 produced
The Florida East Coast Class 801 is a direct descendant of the USRA Heavy Mountain
The Florida East Coast Class 801 is a direct descendant of the USRA Heavy Mountain

The last steam locomotives that the Florida East Coast purchased new were 23 copies of the USRA Heavy Mountain. They were delivered by ALCO-Schenectady in 1926 and were numbered 801 to 823. After the Mountains of the classes 301 and 401, they were significantly heavier. In direct comparison with the 401, they had a larger boiler and larger cylinders, but smaller drivers for greater pulling power. After three were lost by 1952 due to boiler explosion or accident, the remaining 20 were scrapped in 1954.

Axle config4-8-2 (Mountain) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Wheelbase41 ft 1 in
Fixed wheelbase18 ft
Total wheelbase82 ft 8 1/2 in
Service weight356,000 lbs
Adhesive weight224,500 lbs
Total weight611,900 lbs
Axle load61,300 lbs
Water capacity12,000 us gal
Fuel capacity5,000 us gal (oil)
Power sourcesteam
Estimated power3,200 hp (2,386 kW)
Optimal speed35 mph
Starting effort57,948 lbf
Power Plant
Driver diameter69 in
Boiler pressure200 psi
Expansion typesimple
Cylinderstwo, 28 x 30 in
Grate area75.3 sq ft
Firebox area395 sq ft
Tube heating area4,619 sq ft
Evaporative heating area5,014 sq ft
Superheater area1,477 sq ft
Total heating area6,491 sq ft
Calculated Values
steam locomotive
last changed: 04/2024

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