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3 1/2 inch gauge GWR Prairie - stock code 7979

A 3 1/2 inch gauge GWR small Prairie to Martin Evans' "Firefly" design, unsteamed from new.

The locomotive has a silver soldered copper boiler by Western Steam with manufacturer's original shell test certificate - the boiler was supplied new in 2001, the locomotive had its first (and only) club hydraulic test in 2009 when completed.

The engine needs some work to commission for steaming - it runs on air in reverse, not so well forwards so needs either eccentrics or valve setting. There is a minor leak on hydraulic test from the wet header flange.
gauge 3 1/2 inch
length/inches 29
width/inches 7 1/2
height/inches 12
wheel material cast iron
axlebox type plain
valve type slide
valve gear Stephensons
reverser type pole
injector(s) 1
boiler number 167-12-01-HV
year built 2001
boiler maker Western Steam
CE mark n/a, pre-2002
working pressure/psi 90
boiler type locomotive
boiler material copper
boiler construction silver soldered
hydraulic test valid to 24/Apr/22
superheater(s) 3
superheater type radiant
fusible plug no
safety valve(s) 2
safety valve type spring
mechanical pump 1
hand pump 1
whistle yes