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World War One
 
 Royal Navy GWR Crocodile Gun Mount

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Royal Navy GWR Crocodile gun mount number CROC 1 at Rosyth 26th February 1993.
 
At first glace this wagon looks to be a typical Great Western Railway Crocodile bogie well wagon with Dean Churchward brake handles at each end. But the round hole in its floor and the four rectangular holes in the solebar make it different to others. The wagon was built this way so that it could be used as a gun mount for anti-aircraft defence purposes.
 
The hole in the floor of the well was to accommodate the bottom of the gun post and the ring of small holes around it were for bolts securing the gun's circular base to the wagon.
 
To stabilise the wagon while the gun was being fired, outrigger girders were pushed into the rectangular holes in the solebar and were packed with wooden blocks at the outer ends.
  
     
  The wagon's side lettering was as follows:
 
CROC No1
PSTO N
INTERNAL USE ONLY
TARE 29.90
MAX LOAD 30.4  81
 
     

    
 
Rail Album
GWR Crocodile gun mount wagon number 41976 with the gun mount girders stowed in their transit position.
 
 
 
Rail Album for railway and other photographs
One end of Royal Navy GWR Crocodile gun mount SNSO No.608 at Chatham 31st March 1985.
 
 
 
Rail Album for railway and other photographs
Another view of Royal Navy GWR Crocodile gun mount number CROC 1 at Rosyth 26th February 1993.
 

         
  You may be interested in these railway books: On Track Railway DVD  and Book Catalogue    
The Isle of Wight Railway
Lancashire & Yorkshire Wagons Vol.1
Farewell to Steam
Holborn Viaduct to Lewisham
         

 
Rail Album for railway and other photographs
The circular hole and ring of securing bolt holes that once held the gun. Rosyth 26th February 1993.
    

     
  The following dimensions were taken from a wagon of this type at MoD Shoeburyness:
 
Number ARMY 82698 
Width 96 inches
Support apertures in solebar 10 inches wide and 12 inches tall
Bogie wheelbase 5 feet 6 inches
 
     

   
Rail Album for railway and other photographs
The rectangular stabilisation holes in the solebar are partly obscured in this view of Royal Navy GWR Crocodile gun mount SNSO No.608 at Chatham 31st March 1985.
   
 
 
Rail Album
GWR Crocodile gun mount wagon number 41977 with the gun mount girders extended to form the operating platform.
 
 
Rail Album for railway and other photographs
   
 The wagon label holder of Royal Navy GWR Crocodile gun mount SNSO No.608 at Chatham 31st March 1985.
    

         
  You may be interested in these railway DVDs: On Track Railway DVD and Book Catalogue    
Isle of Wight Steam Sunset
Welsh Lines Preserved
Western Turkey
         

  
Rail Album for railway and other photographs
Royal Navy GWR Crocodile gun mount SNSO No.608 at Chatham 31st March 1985.
   
 
 

GWR Crocodile gun mount wagon with the gun fitted. This wagon was built in 1916 to diagram C22 and was converted to a gun mount in 1915, returned to the GWR in August 1921 and re-converted to a gun mount in 1940. This First World War photograph shows a GWR wagon in the number range 41976 to 41978.
    
     
  The Second World War files of the Railway Executive Committee (REC) show that on 9th August 1940 the GWR despatched 35-ton Crocodile G bogie well wagons number 41953 and 41954 from Swindon to Portsmouth to be fitted with 6 inch guns.  
     

     
Rail Album for railway and other photographs
Another view of the circular hole and ring of securing bolt holes that once held the gun. Rosyth 26th February 1993.
  
 
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