AD60 Garratt – more weight

by Josh Beveridge

I managed to have a look at my Garratt yesterday. I found a piece of lead flashing (about 1.5mm thick) in the garage. I cut 2 pieces 55 x 12mm to lay between the driving wheels under the keeper plate. I removed the centre screw from the keeper plate and used it to hold the lead in place.

After a test run, it didn’t do much better. So I added another layer of lead. These pieces were 60 x 12mm and were attached with the same method after about 20 minutes of trying to find a longer screw (turned out to be a 9BA x 3/16 long).

This time the engine hauled another 200g of rollingstock (4 more RU’s or two VLX vans).

National Model Railroad Association | AD60 Garratt - more weight

The double layer of lead adds 55g of weight to the loco. Total weight of the engine is now 785g.

For the record – RU’s weigh 50g model (35t real) OHG weigh 85g model (20t real?)

Test train 1 (no weights) – 13 RU’s + OHG = 735g (475t) Test train 2 (with weights) – 17 RU’s + OHG = 935g (615t)

The gradient on my spiral is 1:50, with a radius of 700mm (29in) – which should give me a grade of 1:40 with a bit of creative maths.