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Thursday, 30 April 2015

Caprotti and Walschaerts Std class 5 and 4 comparison

Here a comparison between the Caprotti class
5 and the Walshearts class 4
 
 
I know it is not a perfect comparison between
class 5 and class 4 however the point is still
valid. Was the Walschaerts heavier on the
class five than the Caprotti 

 
Here73129 rests at Bridgenorth


 
Was there a significant weight saving

 
To my eyes the Walschaerts would have been heavier

 
Large piston valves and of course extra valve gear

 
So was there a difference in overall weight

 
I know when the WC/BB engines were
changed from Bullied's chain gear to Walschaerts the
Weight gain caused by the Walschaerts limited their
availability of the far Devon and Cornwall lines




 

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