Calculate the hauling capacity of a 1-4-1 locomotive when the coefficient of rail-wheel friction and weight on each driving axle are 0.30 and 23 tonnes respectively. 

Calculate the hauling capacity of a 1-4-1 locomotive when the coefficient of rail-wheel friction and weight on each driving axle are 0.30 and 23 tonnes respectively.  Correct Answer 13.8 tonnes

Concepts:

The hauling capacity of a railway locomotive is given as:

H = μ × W × N

H = Hauling power

N = number of pairs of driving wheels

W = weight exerted on the driving wheels

μ = coefficient of friction 

Calculation:

Given: μ = 0.3, W = 23 tonnes

For Locomotive 1-4-1:

Nos of driving wheels = 4

Nos. of pair of driving wheels are, N = 4/2 = 2

Now, the hauling capacity is given as:

H = 0.3 × 23 × 2 = 13.8 tonnes.