How can I work out the grade required to raise a model railway track 7 inches?

I want to raise a track from my model train layout, 6 inches. How do I work out the best gradient.

Thanks.

Col Paton

How can I work out the grade required to raise a model railway track 7 inches?funny myspace

you can use porportions and then cross multiply. cars use 6 percent, and railroads less, 2 to 4 max, figure it life size then convert it to scale. First convert inches to engineers foot, 7 inches equals 0.58 feet to make things simpler.

for 2 is to 100 as 0.58 is to x, solve for x.

2x=58

x=29 ft

How can I work out the grade required to raise a model railway track 7 inches?icons for myspace myspace.com

i would just raise it one inch per on foot...