Search found 380 matches

by johnpenn74
Thu Aug 02, 2018 11:25 pm
Forum: Riding Scale Railroading
Topic: Track Standards
Replies: 16
Views: 4170

Re: Track Standards

STRR, True, superelevation is designed with 3 degrees of freedom; speed, radius, mass. Any designed curve (level or superelevated) will have an interelation between speed and mass as the radius is fixed for a given location. The prototype fights this same problem as you can hear speed detectors that...
by johnpenn74
Wed Aug 01, 2018 6:37 am
Forum: Riding Scale Railroading
Topic: Track Standards
Replies: 16
Views: 4170

Re: Track Standards

The picture is a standard plumbers level. Available as at any hardware store.
by johnpenn74
Sun Jul 29, 2018 7:36 am
Forum: Riding Scale Railroading
Topic: Track Standards
Replies: 16
Views: 4170

Re: Track Standards

Here's the level I use.
by johnpenn74
Fri Jul 20, 2018 9:39 pm
Forum: Live Steam
Topic: Spring rigging question
Replies: 10
Views: 1769

Re: Spring rigging question

Here's a picture of a 1930 Baldwin Decapod in Winder Ga. I am sure this is basically the same treatment as the USRA 0-8-0. If you export the picture and zoom in you can see the right most connection to the spring is a pin through the spring pack like the ones that hook things together when the leave...
by johnpenn74
Wed Jul 18, 2018 5:05 pm
Forum: Live Steam
Topic: Mogul Kit Differences
Replies: 35
Views: 5082

Re: Mogul Kit Differences

Well I think that any project where you have any existing prototype is a great one to do. When in doubt, go look at the prototype!... Many of the Little Engines models are Southern Pacific prototypes. You might find the LE mogul is close to your prototype. The drivers I know is wrong, to small I thi...
by johnpenn74
Sun Jul 15, 2018 8:13 pm
Forum: Live Steam
Topic: Spark arrester design
Replies: 21
Views: 4465

Re: Spark arrester design

Do these things really work? Last time I was running at night I saw a lot of spark going up through the stack and cinder trap... which makes me ask how effective they are. Here the one on my engine. The Costagon cabbage stack traps cylinder by deflecting the flow of air, which I would think is a mor...
by johnpenn74
Sat Jul 14, 2018 11:13 pm
Forum: Riding Scale Railroading
Topic: Track Standards
Replies: 16
Views: 4170

Re: Track Standards

I will cast a vote in support of super elevation. Having worked through a couple of curves I feel it is well worth the effort. Tools: In the past I have used a plumbers level that has fractional inch drop / 12". I recommend using 3 targets 1) level, 2) minor tilt (say 1/4 in 12") and 3) major tilt (...
by johnpenn74
Fri Jul 13, 2018 9:18 am
Forum: Riding Scale Railroading
Topic: Your RR grading methods??
Replies: 50
Views: 15453

Re: Your RR grading methods??

Ryan, If you are decided to go the bar stock route, take another look at the forms used that I mentioned earlier. The original forms method done by Charlie was made for building his groovy track RR. Canton Modified the system slightly so it would work with standard section rail. Charlies confguratio...
by johnpenn74
Wed Jul 11, 2018 9:34 pm
Forum: Riding Scale Railroading
Topic: Your RR grading methods??
Replies: 50
Views: 15453

Re: Your RR grading methods??

Forms The forms are set up about 100' feet at a time. The time it costs you in setting up the forms, it sames you in tamping and leveling and having the track operable. I would argue it give a much better final product. Ask the guys at Canton, they laid the bulk of the RR using the form method. That...
by johnpenn74
Wed Jul 11, 2018 10:26 am
Forum: Build Log
Topic: Building a Veranda
Replies: 37
Views: 10437

Re: Building a Veranda

There were two different tender. The totally round one being nick named the "beer Can" I think.

JP
by johnpenn74
Sun Jul 08, 2018 11:11 am
Forum: Riding Scale Railroading
Topic: Your RR grading methods??
Replies: 50
Views: 15453

Re: Your RR grading methods??

You make a good point Glenn; some railroads actually pull off not graveling below the ties and dirt. I have laid track at Mill Creek where we did not use any gravel between the ties and dirt. We simply cut the grade dirt and make sure the clay / dirt is flat by rolling, tamping, etc. The ties that g...
by johnpenn74
Sat Jul 07, 2018 8:23 pm
Forum: Riding Scale Railroading
Topic: Your RR grading methods??
Replies: 50
Views: 15453

Re: Your RR grading methods??

Here's a picture of the forms method. Charlie Howell of Columbus, Ga pioneered this method. This construction method allows you to cut the grade a little rougher and compensate with gravel sub base. This nice part about this method is the leveling is done on the tops of the forms (like you would do ...