10-02-2013, 03:58 PM
Hi e-paw,
regarding your questions:
1) Power supply is by on-board batteries (two sets of three 12V-batteries in series). Either one very powerful 4QD-controller or two less powerful controllers (one for each truck) in a master-slave set-up will manage the four PM-motors (one on each axle) of the A-unit. The controllers are similar to those of golf-carts with forward/reverse and regenerative braking capability. Motors are connected via an idler to the axle (gear reduction app. 4:1).
The (master-)controller will be connected to a control box (wired through the B-unit).
The drive line it's not finished now, however, apart from being (much) more powerful as in my other locomotives, it's up to just the same.
2) Plain areas of the shell received a basic layer of fiber-board,on a steel-tube frame. The nose was shaped from styrofoam, the roof from expanded metal screen. All areas were covered with app. 1/4" glass-reinforced plastic. Finally the foam core of the nose was removed.
A view into the shell (nose area) after removel of the foam-core
![[Image: int_1.jpg]](http://4.bp.blogspot.com/-tdj8DokAccQ/UAP9jHNum6I/AAAAAAAAAN8/45LHf75FIyE/s1600/int_1.jpg)
More pix you'll find here in my projects' blog :
http://large-scaledieselmodels.blogspot....results=17
Regards
Norman
regarding your questions:
1) Power supply is by on-board batteries (two sets of three 12V-batteries in series). Either one very powerful 4QD-controller or two less powerful controllers (one for each truck) in a master-slave set-up will manage the four PM-motors (one on each axle) of the A-unit. The controllers are similar to those of golf-carts with forward/reverse and regenerative braking capability. Motors are connected via an idler to the axle (gear reduction app. 4:1).
The (master-)controller will be connected to a control box (wired through the B-unit).
The drive line it's not finished now, however, apart from being (much) more powerful as in my other locomotives, it's up to just the same.
2) Plain areas of the shell received a basic layer of fiber-board,on a steel-tube frame. The nose was shaped from styrofoam, the roof from expanded metal screen. All areas were covered with app. 1/4" glass-reinforced plastic. Finally the foam core of the nose was removed.
A view into the shell (nose area) after removel of the foam-core
More pix you'll find here in my projects' blog :
http://large-scaledieselmodels.blogspot....results=17
Regards
Norman