fun with numbers!
first do a 'feet to inches' conversion... (multiply feet by 12)
10 ft = 120 inches
now divide by ur chosen scale's denominator (160 for n-scale, 35 for ur armor) ...
a 10 foot tall object would measure approx. 3.42 inches in 1/35 or .75 inches in n scale....
HTH,
frosty
i forgot to mention that in the UK, n-scale railroading is 1/148 instead of 1/160... sorry.