Re: Spiking curved track

Dan is correct that the rail is very flexible. You just spike the line rail down tie-by-tie and use a lining bar on the long end of the loose rail to line it to the next tie at the location you have by a good survey. Survey stakes are needed every 31 or 50 feet depending on the sharpness of the curve. Since 24 degree is the best for narrow gauge, there is no need to use any rail bender for track. If you want more leverage for ease, bolt a second rail on the loose end of the rail to spike, and ply that around. Easy to try this method on a model railroad also to see the method works well for those scale modelers.
After the line rail is secure, follow with the gauge rail, using a strong track gauge bar to pry the second rail against as you spike it down to the ties. No spiking should be done without the gauge at the place of spiking or very close. Gauge every tie as they are spiked. Increase gauge 1/4" for each 10 degrees of curve and have 31 feet of distance for every 1/4 inch of difference of gauge.