by smallfire85
From what I've seen, the constant dimension in the 63rd Street Tubes plans is the LIRR top of rail to the NYCT top of rail, which is 16'-9". The lowest clearance I've seen for the LIRR tubes was 15'-4". This is based on the "trench method" design, which is just amazing to look at. Also, looking at the M-7 datasheet, the M-7 is 12'-11.5" high to the roof, 13'-4" to the top of the antenna. Thus ends my bunny trail.
D. Small
D. Small