07-22-2009, 06:04 PM
A foot between two levels isn't much. Remember, you have to think in terms of the top of the lower deck to the *top* of the upper deck, which will be 4" thick or more. And think about how far apart two decks have to be for you to see to the back of the lower deck.
To climb 16" at 3% will take over 44'.
To climb 16" at 3% will take over 44'.
Fan of late and early Conrail... also 40s-50s PRR, 70s ATSF, BN and SP, 70s-80s eastern CN, pre-merger-era UP, heavy electric operations in general, dieselized narrow gauge, era 3/4 DB and DR, EFVM and Brazilian railroads in general... too many to list!