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So I have seen many posts that talk about Big Boy overhang but nothing that I found answers my question. I just ordered a new Big Boy LC+ 2.0 #4000 Greyhound. I am very excited since I have always wanted a big boy. I came across one on Nicholas Smith Trains.

I have o31 track that runs around a hobby room floor. Some areas are going along baseboards that are quarter turns with straights and one half circle with an exiting S turn.

I'm wondering what the over hang is if anyone is running one of these on o31.

I know they look ridiculous from what I've read and seen but I'm fine with that as I have alot of straight areas to enjoy.

Basically, I'm tying to get an idea of how far I need to have my track away from the baseboards of the walls to accommodate the overhang.

Again, I am not concerned with how it looks.

Thanks

Brad

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Great to know. Thank you gunrunnerjohn.

Your replies to all my questions the past year have been so appreciated. This forum and people like you with your knowledge and willing to help others is what keeps me in and growing in this hobby. I know there are many others but I always hope and look forward to you replying to one of my posts or questions.

Thank you,

Brad

This question got my curiosity going. As luck would have it, I had some 031 track I was fooling with and the LC +2.0 was sitting on a nearby shelf. I plan to run mine on 042 and 054 but here are some shots of what it looks like on 031.  This was hand placed and was not running.  I was surprised at the swing of the back end... about 2-2.5" -but it makes sense when you see where the back drive truck is located,  otherwise, the pictures show  one inch is a good estimate for other BB areas  and depending on where your wall is located.

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WOW, I'm glad you did that.  I've done that experiment with the MTH Railking and it didn't have that much overhang.

@B rad posted:

Great to know. Thank you gunrunnerjohn.

Your replies to all my questions the past year have been so appreciated. This forum and people like you with your knowledge and willing to help others is what keeps me in and growing in this hobby. I know there are many others but I always hope and look forward to you replying to one of my posts or questions.

Thank you,

Brad

Maybe you shouldn't be so trusting, I'm glad someone had one that could actually measure.  I'm shocked at the overhang, better increase the distance from that wall!

Last edited by gunrunnerjohn
@shorling posted:

I currently don't have any of these beasts in my roster, although I liked too.  Overhang and cost in that order are holding me back.  I know I have clearance issues on my 096 run, maybe not on my 088.  Anyone have a x-y matrix listing clearance required by beast vs track size ?

Remember, the larger the curve, the less overhang that you'll have on any locomotive.  I have an O90 curve on my second level and a post that's 3.5" from the centerline of the track.  The biggest overhang of my fleet seems to be the MTH Premier Big Boy at about 3.25", and it clears the post easily.  The next guy that's about as close is the C&O Coal Turbine, at 26" long, it's the longest locomotive steam or diesel that I have.

I suspect you'd find that the LC+ 2.0 Big Boy would have no issues at all on your wider curves.

Remember, the larger the curve, the less overhang that you'll have on any locomotive.  I have an O90 curve on my second level and a post that's 3.5" from the centerline of the track.  The biggest overhang of my fleet seems to be the MTH Premier Big Boy at about 3.25", and it clears the post easily.  The next guy that's about as close is the C&O Coal Turbine, at 26" long, it's the longest locomotive steam or diesel that I have.

I suspect you'd find that the LC+ 2.0 Big Boy would have no issues at all on your wider curves.

I have a store front that protrudes towards the 096 rails on a curve and my Lionel Berk clears by a thread.

My second level mainline loop is flex track, roughly O90 diameter.  My 3.5" from center track clearance is enough for all my locomotives, at least all that I've tried.  I've run most of the big articulated locomotives as well as the aforementioned C&O Coal Turbine, and they all made it around without clipping the post at 3.5".  I really don't anticipate any larger locomotives showing up that would challenge that post.

My second level mainline loop is flex track, roughly O90 diameter.  My 3.5" from center track clearance is enough for all my locomotives, at least all that I've tried.  I've run most of the big articulated locomotives as well as the aforementioned C&O Coal Turbine, and they all made it around without clipping the post at 3.5".  I really don't anticipate any larger locomotives showing up that would challenge that post.

GRJ,  Thanks for the info.  I'll have to check the 3.5" clearance from the center rail on my 088 run.  I have other potential runs but at smaller diameters.  There are tunnel, IR sensor, 450 signal bridge, etc clearances to consider.

I have a 2010 model year Lionel Big Boy #4006 LionMaster, so same semi-scale size as the LC +2.0 Big Boy. Here's a photo of the loco in an O36 curve. On my layout it will tap a couple of trees with a 2 inch overhang at the cab. The front has very little overhang. On my layout only the middle loop is 036, the rest of the layout is 048 and my Big Boy looks less ridiculous on 048.

Big Boy LionMaster 036

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@hokie71 posted:

This question got my curiosity going. As luck would have it, I had some 031 track I was fooling with and the LC +2.0 was sitting on a nearby shelf. I plan to run mine on 042 and 054 but here are some shots of what it looks like on 031.  This was hand placed and was not running.  I was surprised at the swing of the back end... about 2-2.5" -but it makes sense when you see where the back drive truck is located,  otherwise, the pictures show  one inch is a good estimate for other BB areas  and depending on where your wall is located.

102_7666102_7667102_7668102_7669102_7670

Reminds me of PCC making a turn.

I can relate to this!!  Constructed my layout using 0-36 curves, completed the scenery (tunnels, telegraph poles, trees, etc) with never a thought that I would one day own a Big Boy engine.  After watching the videos of the 4014 prototype, I was HOOKED!   Ended up buying the LC+ version and **** - that overhang is ridiculous on 0-36!!  Considerable renovations had to be made on the right of way - utility poles relocated, trees uprooted.  Luckily the monster barely cleared some structures that would have been a real pain to move such as signals and a floodlight tower.  But I wasn't as lucky with my tunnel. I had to trim the opening on one of the portals in addition to the internal cavity (fortunately I had rear access thru the back of the mountain).

Next layout will be 0-54 MIN !

I'm not really familiar with all the BB variations.  Simply there is/was Lionel and MTH, scale or not scale.  That's four variations right there, the not scale being lower cost.  Which of these variations would minimize the overhang on 088 track?  My outside mainline is 096 and there would be interferences.  But my adjacent mainline is 088 and looks like it might tolerate an overhang.  Truth be known, I would rather have a cab forward.

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