... know the set up in a particular locomotive class. My friend dealing with 3801 spent 40 minutes explaining how the 'trick' piston valves fitted to some of the 38 class worked. I got it then but I'm damned if I could explain it now. I enjoy Templot forum threads as I have picked up a lot of practical modelling information, track design and history information Regards, Matt M. posted: 10 Oct 2019 19:09 from: Andrew Barrowman Hi Andrew, There will be no rubber tires (or tyres) 2983_101359_180000000.jpg It will be "tender powered" by that rather large Sagami motor in the tender driving the first and third driven axles via 20:1 reduction gears. The entire locomotive body will be stuffed full of lead (depleated uranium being unobtainable). The worm and worm-gears will be Tri-ang replicas made by yours truly. They are "two-start" gears which help to reduce friction. Center driver and coupling rods will be pretty much along for the ride. Cheers! Andy posted: 10 Oct ...