Beyer-Garratts were used in Spain from the 1930s on both passenger and freight services. This is a detailed model of the last freight engine ordered, 282F-0421 of 1961, which survives in preservation, still in working order.
Steve and I took this one to the club last week (well we had to - when would we next get a chance to drive a Garratt?). At the risk of stating the obvious, it is a very big engine. Seriously big it went to the club track as not only did we not have enough rollers to run it on in the workshop, we didnt even have a bench long enough to stand it on. Its that big.
Loading and unloading is fine provided its always on a piece of track once off the track, manoeuvring the three articulating sections is a bit like wrestling an anaconda. Heavy, irritable and with a mind of its own.
Steel boiler, 90 psi working pressure, feed by a multiplicity of axle pumps, steam pump and hand pump in the rear bunker. Twin pop-type safety valves. Four cylinders with slide valves actuated by Walschaerts gear, with screw reverser, pair mechanical lubricators. The engine is copiously supplied with lights, in the cab and along the running boards, wired for an external battery with plug connector at the rear. Controls are all extended to the rear tank, with slide-out regulator handle, reverser and drain cock handle. Axle pump bypass is mounted on the side of the tank, starting the steam pump on the move is something only to be attempted if you're in regular employment with Cirque du Soleil, for all others starting it at the station to run at a gentle tickover throughout the next lap is the preferred option.
The engine is in running order, but its fair to say its done a lot of work and needs an overhaul. The steam pump leaks, drain cocks are erratic in operation with two so-so, one leaking moderately and another profusely, glands need repacking, valvegear needs some rebushing. It wont be a five minute job, although could be done as part of a rolling restoration program, keeping the engine useable in between sessions of workshop activity.
All that said, a remarkable model of an interesting prototype - there's some video of Steve and I playing with it on a very cold day last week here.
Hydraulic test @150psi 15-12-2009
Length 92 inches