For those that have used the MTH bridge: https://mthtrains.com/40-1109 , how much straight track is needed to avoid having long loco front ends, such as on a Challenger or Big Boy not hit the sides as it enters. I am dealing with a space needing 72 inch curves that is 11 feet wide, the curves take up more than 6 feet of that allowing for 4-5 inches spacing from the walls, leaving less than 5 feet to fit the bridge in. If I use the approaches: https://mthtrains.com/40-1108 that reduces the remaining space to zero, meaning the end of the curve would be right at the start of the bridge with the max overhang of the loco at that point.
Original Post