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Once Again, THANKS GUYS!! I suspected we might be heading for trouble and figured one or more of you must have a good idea about just how many times prototype we could get away with. There is only fifteen feet from end of yards to end of room. We wanted that fifteen and a half inch difference so "the skinny guy" could reach the hideout tracks in case 0-5-0 re-railing or other help might be needed under there. Guess we'll have to go to slightly over Road Clearance and re-route the hide-outs to near the front of the bench so he can just reach under. That will make the climb about 8 inches over fifteen feet or .044. 4.4 % is still a lot according to the experience shared from Vancouver (thanks Tony). If that still won't work we'll have to either carry the climb into the next room or around the corner and across the first room. That however will mess up our planned interchanges. ARRrrrggghhhh!!! Oh well better re-planning than having to tear up something that disappoints. B-T-W Tony et. al. I know there are differences in units of measurement between the two great North American nations. But I think percentage of grade is still arrived at by dividing the rise by the length once you have a common unit (inches, feet etc.) 15 1/2 does indeed go into 180 eleven point six times. But 11.6 is only 8.4111 PERCENT of 180 which in this case is our "hundred percent value".. THANKS Elliott for the "brake" idea. It sounds great!! I've some old Lionel 022 switches and they have a great solenoid in them. I think I'll use one of those to raise and lower the brake pin behind the axles. They have plenty of power and they live forever. They can only stand momentary power but if they dont "lock" in position I'll conjure up something that alternates between "up and locked" and "unlocked & down" I should have realized that no magnet would grab hard enough. I'll report the results of that brake design as soon as I've done it. Maybe I'll see it used in your great hump yard. It'll be a great satisfaction to know that I contributed something to the design of THAT layout. Thaks again all. Back to the drawing boards!! Joe
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