Freerails Home 
Home Search search Menu menu Not logged in - Login | Register
Freerails > Model Railroad Forums > On30 > Bachmann On30 turn radius

Because of non-railroad abuse of the site, new members MUST use their first names (at least) to join NO EXCEPTIONS!

Bachmann On30 turn radius
 Moderated by: Reg H Page:  First Page Previous Page  1  2  3  4  5  Next Page Last Page  
New Topic Reply Printer Friendly
 Rate Topic 
AuthorPost
 Posted: Sun Jun 4th, 2017 05:52 pm
  PMQuoteReply
31st Post
Michael M
Registered


Joined: Thu Jan 26th, 2017
Location: San Bernardino, California USA
Posts: 579
Status: 
Offline
Yeah, the Unitah had some very tight curves.  There's a photo out there (just can't find it now) showing a Unitah train with short cars interspersed between the longer cars just to get around some of the tight curves.

The Mt. Tamalpais & Muir Woods also had some very tight curves along with steep grades.

I'm comfortable with the 10" radius loop on my 35n2 railroad.  The loop is not designed for the main part of operations.  Besides I'm using very short equipment.

If you look hard enough you'll probably find a prototype for just about anything.



____________________
Michael
-------
Nye, Inyo & Esmeralda Railroad
Back To Top

 Posted: Tue Jun 20th, 2017 05:15 am
  PMQuoteReply
32nd Post
Jonah K
Registered
 

Joined: Mon Jun 19th, 2017
Location:  
Posts: 18
Status: 
Offline
Hey there, new to the site!

I've been trying to plan a layout with a Bachmann Outside frame 4-4-0 and was curious of your guy's experience with it and a good minimum radius.

Thanks again!

Back To Top

 Posted: Tue Jun 20th, 2017 06:20 am
  PMQuoteReply
33rd Post
oztrainz
Super Moderator


Joined: Wed Apr 10th, 2013
Location: Unanderra, Australia
Posts: 816
Status: 
Offline
Hi Jonah,
I'd recommend that you head back to Page 1 and have a look at Post #1 and the pdf link and my response at post #4.

Going tighter than then the "Minimum Recommended Radius" or first column can get you into trouble very quickly if you cannot lay your track to a very high quality standard.  If you can stay bigger than the "Minimum Recommended Radius", then you should be able to have trouble-free operations without stuff binding up in curves, 

If you decide to push the edge of the Minimum Radius envelope, you really have to know what the rules are before you try and bend them. To get anywhere near the second column or "Absolute Minimum Radius" EVERYTHING has to be "just right" and you have to be very good at measuring and tweaking both track and rolling stock to get good operation at that radius. 

My advice is to stay with the Minimum Recommended Radius or bigger if you can.  



____________________
Regards,
John Garaty
Unanderra in oz
Back To Top

 Posted: Tue Jun 20th, 2017 02:50 pm
  PMQuoteReply
34th Post
W C Greene
Moderator


Joined: Fri May 4th, 2007
Location: Royse City, Texas USA
Posts: 7569
Status: 
Offline
Howdy Jonah and welcome to Freerails. Minimum radius for a Bachmann outside frame 4-4-0? I would imagine 18" is about right. Before you get into measuring and bending flex track, I would spend a bit and buy a pack of Atlas (or similar) HO gauge 18" snap track. Maybe even a full circle of the stuff so you can at least watch something run while you consider what to do next. On my old layout, I was able to get the inside frame 4-4-0 to handle about 15" (I run Shays and Porters) but I had to modify the lead truck somewhat and she still had too much overhang.
Everybody has their own way to do things, this is just my way...and it may not be right anyway!
At any rate, have fun and run a train today.

Woodie



____________________
It doesn't matter if you win or lose, its' how you rig the game.
Back To Top

 Posted: Tue Jun 20th, 2017 03:37 pm
  PMQuoteReply
35th Post
pipopak
Moderator


Joined: Wed Apr 13th, 2011
Location: Florida USA
Posts: 1757
Status: 
Offline
Watch for loco/tender interference.
Jose.



____________________
Junk is something you throw away three weeks before you need it.
Back To Top

 Posted: Tue Jun 20th, 2017 04:22 pm
  PMQuoteReply
36th Post
Michael M
Registered


Joined: Thu Jan 26th, 2017
Location: San Bernardino, California USA
Posts: 579
Status: 
Offline
Jonah,

Woodie's suggestion about buying some Atlas Snap Track is something really worth considering.  You might even pickup some 15" radius just to see if your 4-4-0 will squeeze around it.  Even though the equipment runs on HO gauge track you're still modeling in O scale.  I had a small On30 layout and I could get the Bachmann passenger cars around a 15" radius but the overhang was terrible.  I also had (still have) a Galloping Goose that I kept to 22" radius.  It just looked and performed better.

Right now I'm working on a 35n2 layout and I do have a small loop with a 10" minimum radius.  But I'm using 4-wheel HO mechanisms for the locos and very short 4-axel cars so I can get away with it.  Also, the loop is not part of the 'main line' (right now the 'main line' is only 26" long) and will be treated more as a short branch line so the tight radius won't interfere with operations or future equipment acquired down the road.



____________________
Michael
-------
Nye, Inyo & Esmeralda Railroad
Back To Top

 Posted: Tue Jun 20th, 2017 04:34 pm
  PMQuoteReply
37th Post
Reg H
Moderator


Joined: Sun Oct 19th, 2014
Location: Shelton, USA
Posts: 458
Status: 
Offline
Checking things out is a really good idea.  I found that even 24" radius curves resulted in a lot of overhang on the bigger locomotives, particularly the consolidation.

Somewhere I have photos of one of my locos on a 24" radius curve showing the overhang.

I will go looking for it.

Reg



____________________
Reg
Back To Top

 Posted: Tue Jun 20th, 2017 10:49 pm
  PMQuoteReply
38th Post
Jonah K
Registered
 

Joined: Mon Jun 19th, 2017
Location:  
Posts: 18
Status: 
Offline
Thank you all for the advice! I asked the question since I have seen that minimum radius sheet for the Bachmann On30 locomotives floating around and was curious if anyone on the forum had actually experience with the locomotive. Again, looking forward to posting a thread about my new layout soon!

-Jason

Back To Top

 Posted: Mon Jun 26th, 2017 02:59 am
  PMQuoteReply
39th Post
jtrain
Registered


Joined: Sun May 27th, 2012
Location: Missoula, Montana USA
Posts: 971
Status: 
Offline
Jonah, you and I have the exact same engine.  Bought it from Trainworld, right?  It's a great engine, but it should have at least 18 inch minimum radius to operate, especially if it will have anything longer than mining cars being towed behind it.  A 22 or a 24 inch radius isn't necessary for operating, but I'd recommend it if you could swing it.  I'm personally planning a shelf layout to be build in sections, so the equipment will be on fairly straight track.

--James:thumb:



____________________
James W.

New Blog (permanent this time)

blackhillsrr.blogspot.com
Back To Top

 Posted: Mon Jun 26th, 2017 04:44 pm
  PMQuoteReply
40th Post
Jonah K
Registered
 

Joined: Mon Jun 19th, 2017
Location:  
Posts: 18
Status: 
Offline
Yup, bought it since it was on sale and it had the look I was hoping for (the outer flyweight look)
And that is for that help! I'm still trying to put together a layout and don't know if I want a circle a point to point, though the radius ordeal might make it a point to point...
-Jonah

Back To Top


 Current time is 08:20 am
Page:  First Page Previous Page  1  2  3  4  5  Next Page Last Page  

Freerails > Model Railroad Forums > On30 > Bachmann On30 turn radius
Top



UltraBB 1.172 Copyright © 2007-2016 Data 1 Systems