Sold February 2021 Back to Archive

3 1/2 inch gauge Boston & Albany D1-A 4-6-6 - stock code 9407

A 3 1/2 inch gauge Boston & Albany 4-6-6 D1-A, a small class of powerful locomotives produced in 1928 by Alco for fast commuter services - similar to our "Jazz" trains of the same period.

Featuring a short six wheel tender carried on an extension of the locomotive frames, the engine was designed to run equally well in either direction.

An older model, part dismantled some years ago - the cab and running boards are loosely assembled in the photographs opposite. It's come to us from the family of a long-time customer of ours as part of a larger collection of locomotives, including the "Feldbahn" we built for him in 2014.

Boiler showed no sign of leaks or deflection under a twice working pressure hydraulic test, we would warranty it as sound. The chassis is complete although seized, it will require some dismantling to free off. Regulator is seized and safety valves are missing, with the sheared off remains of one still in its bush.

A worthwhile restoration project; it's a rarely modelled prototype - handsome to our eyes - and a large engine in this scale, being built to North American loading gauge.

Complete with a purpose built transport/storage box.

gauge 3 1/2 inch
length/inches 41
width/inches 8
height/inches 13 1/2
wheel material cast iron
axlebox type plain bearing
cylinder material cast iron
valve gear Baker
reverser type pole
lubricator type mechanical
injector(s) 1
CE mark n/a - non-commercial
working pressure/psi 90
boiler type locomotive
boiler material copper
boiler construction silver soldered
safety valve(s) 2
mechanical pump 1
hand pump 1
whistle yes