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October 15, 2018, 05:34:20 PM
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16  Discussion Boards / HO / Re: Any chart of curve track #'s? on: June 30, 2018, 05:16:26 PM
Man. Too much math Shocked😱😂.  I gotta go lay down.😂😂

Not me. I am fascinated by the engineering process.
17  Discussion Boards / HO / Re: Any chart of curve track #'s? on: June 30, 2018, 01:47:43 PM
bb don't pretend to understand what you don't.

What ebt posted is the formula for finding the "Degree of curvature" which is a civil engineering way of expressing the sharpness of a curve. It is roughly equivalent of what we call radius. In engineering, when laying out a curve, it is far easier to mark the curve in 100 foot segments than to find the center point of the arc and measure from there. The center point of a curve may be a mile or more away from where the actual curve is. "Degrees of curvature" as expressed by civil engineers has nothing to do with the total degrees in the curve itself.

As an example, the sharpness of Horseshoe Curve in Altoona, PA is 9 degree 30 minutes. But the total curvature of the arc is 225 degrees. When you look at the curve from the air, you see the 225 degree arc. When you are at ground level, in the park at the center of the curve, it wraps around you on three sides. But if you looked at the track charts (Engineering diagrams) for the curve, all you'd see are notations of the start and end points of the curve, and the figure 9degrees 30 minutes.

Degrees of curvature as expressed by the real railroads and by model railroaders are two completely different things.
18  Discussion Boards / HO / Re: Any chart of curve track #'s? on: June 30, 2018, 11:40:00 AM
Iíve always wondered why model railroad curves arenít measured in degrees like the prototype.

The two methods are apples and oranges.It would be impossible to measure curves by degrees the way the civil engineers do. In their measurement, the degree of curvature has nothing to do with the total arc of the curve. In model railroading, the arc is much more important.
19  Discussion Boards / HO / Re: turnouts on: June 17, 2018, 10:55:40 AM
Bear in mind that Terry's photos are using the standard 18r switches with a 30 degree angle of turn on the diverging route. That makes the parallel tracks spaced much wider than necessary, they appear to be on about 5 or 6 inch centers. By using #4 or #5 you should be able to tightn up that spacing considerably, even using EZ track you should be able to get the spacing down to 3" or so. Using switches without roadbed, like atlas, shinohara or peco will allow you to space your tracks as close as 2" apart.
20  Discussion Boards / HO / Re: Seeking Bachmann Historians! on: June 09, 2018, 08:13:08 AM
That would make sense. IHC was the successor to AHM. And since much of the AHM line was made by Mehano, a lot of the cars later appeared under that name as well.
21  Discussion Boards / General Discussion / Re: Brick & Mortar on: June 09, 2018, 08:06:40 AM
Though I have 3 shops within about 5 miles. two seem to cater mostly to older train set type stuff. The third puts emphasis on N scale.

The best shop in Pittsburgh, A B Charles, went downhill fast when Bud Charles died about ten years ago,. The son had no interest in trains, concentrating on other things. After a couple of moves under his ownership it is now gone completely.

The nearest shop that has a wide selection of HO is over 25 miles away, in Cranberry.

For me, a shop that just sells locomotives, cars, track and building kits is useless. I need a supply of parts for my various projects. Rail and spikes for handlaid track. Wheelsets and gears for rebuilding locomotives. What I've found is that this stuff is available, but most hobby shops won't special order it. Or if they do, somehow they never actually get it. When I find a shop that actually will stock or special order what I need, most if not all of my business goes there.
22  Discussion Boards / HO / Re: I wish Bachmann would make............How about you?? on: June 02, 2018, 10:07:10 PM
My personal wish, something I've asked for on this forum for years, are updated models of the F9 and the U36B. The tooling already exists, and the drives for these locomotives would be the ones used under the f7 and B23-7 respectively.
23  Discussion Boards / HO / Re: Seeking Bachmann Historians! on: June 02, 2018, 09:55:57 PM
When I was a kid in the 1970s, every time I bought a ready to run car, my dad would look up the number in the Equipment Register. More often than not, the number either didn't exist, or was used on a car that didn't remotely resemble the model. Manufacturers back in the day didn't do the research to get things reasonably close to correct like they do to-day. A great example of this were the myriad locomotives painted in Santa Fe warbonnet colours. Bachmann had GP40s and U36Bs painted this way in the 1970s. At that time, neither type of locomotive had ever graced the Santa Fe roster, and if they had they would have been in the blue and yellow freight colours. Another example was the 4 bay offset side hopper like the one shown in this thread. 3 bay cars of this design were very common, but the 4 bays were not. I've seen many models of them painted for Pennsylvania, which as far as I know never rostered an offset side car other than a truly bizarre 5 bay experimental car. Even to this day, Bachmann makes these cars in CSX. By the time CSX started painting freight cars in 1987, even the three bay cars were off the roster, and the 4 bays were but a distant memory.
24  Discussion Boards / HO / Re: Seeking Bachmann Historians! on: June 02, 2018, 09:43:20 AM
DOes this car have talgo style trucks with horn hook couplers? If so, looking at the method the coupler is attatched to the truck, and the way the truck is attatched to the car body can help identify it.
25  Discussion Boards / HO / Re: Split Gear Syndrome on: May 28, 2018, 04:44:21 PM
To expand on what Hunt asked, WHat are the inside shaft diameter and number of teeth for these gears. I assume they are a stock item that  doesn't vary much if at all between different types of locomotives. Is there any chance these could be stocked in the online parts store?
26  Discussion Boards / HO / Re: Split Gear Syndrome on: May 28, 2018, 09:46:54 AM
My local hobby shop sells Athearn replacement wheelsets that will fit the BL2s, and many other P2K locomotives. They come completely assembled, all you have to do is drop them in.

27  Discussion Boards / HO / Re: Brand New 15 Year Old Train on: May 26, 2018, 09:24:27 AM
They wouldn't necessarily have said the locomotive was DCC ready in the instructions. But changes were made in the locomotives wiring  years ago to make conversion to DCC easier. I have a Thomas I picked up about 2004 that has the same pc board in the wiring. When I converted it to DCC all I did was replace the pc board with a decoder.
28  Discussion Boards / HO / Re: 15 Year Old ower Unit on: May 26, 2018, 09:20:11 AM
You can find beginners books on model railroading at any hobby shop that will tell you what was probably on the video tape. Model trains don't vary much from manufacturer to manufacturer. The biggest difference these days is DCC or Dc.
29  Discussion Boards / General Discussion / Re: HO Frog Juicers on: May 20, 2018, 09:21:07 PM
The fix is easy. Simply solder a short jumper wire between the dead rail and the adjacent stock rail. or, as an alternative, you can solder a slide a short brass strip under both rails and solder it to each.
30  Discussion Boards / HO / Re: Scarm on: May 20, 2018, 05:13:57 PM
ON anyrail, the tutorial is under the help button. There is also a tutorial on their web site.

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