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Managing slack on grades and curves...
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[quote user="Murphy Siding"][quote user="baberuth73"] <p>Nothing like being slammed into a locomotive windshield by slack run-in on a downgrade. Most anyone with a modicum of training can run a locomotive but proper train handling, of which slack management is a big part, comes only with experience.</p><p>[/quote]? Wouldn't slack run-in on a down grade slam you backwards, not forward? Like being rear-ended in a car?[/quote]</p><p>Keep in mind there are usually three (Or was it four?) collisions that happen in a motor vehicle. The vehicle against something that acts upon it.. like a wall. The person inside the vehicle against the interior or restraint system, the cargo against the vehicle and probably the person as well. The 4th possibility applies to 18 wheelers, trailer against cab with it's own load. The 5th collision will sometimes be the driver thrown out to impact the ground, pole or whatever.</p><p>Rollovers are the worst. The driver gets to impact the cab interior in a multipule cartwheel breaking a bone or three on each hit until the entire object stops.</p><p>It will slam you back until it runs out of coupler slack and then the resulting JERK slams you forward. Slack works both ways when it runs into something that needs moving. I recall hearing stories of caboose crews being tossed out.</p><p>Ive had loose 5th wheels that slammed but never experienced bad slack on a train. Most of the touring railroads under steam Ive ridden were careful to ease into the inertia and not make slack run in or out. Maybe a little bit when stopping, cannot really avoid that.</p><p>Grades on model trains, I overpower my consist by weighted motive power and just march uphill at a low speed without wheelslip. Going down? Well, I just gather it in against the tender and hopefully the speed I selected will not cause the engine to be run off the track.</p><p>6 to 10 pounds of train on those Kadee couplers are good enough. They just dont fail like the plastic ones do. The plastics always fail on the first bad slack run.</p><p>What goes up at a speed comes down at the same speed or slower.</p>
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