7+-NGM-logo The

7-Plus-NGM Digest March 2000

Date: Thu, 30 Mar 2000 17:10:51 -0000
From: "Rudolph (Rudy) van Wingen"

Subject: 2.5" scale supplies available.

Como Roundhouse Products supplies metal car parts and accessories for 3' gauge prototype cars and locomotives for modelers of 2.5" scale and larger. We also act as the internet contact for Conway Locomotive Company which supplies 2.5" scale and lareger locomotive kits and accessories.

Email to dmmcomo@socal.rr.com for catalog(s) or additional information. CRP's catalog is free ('cause that's all it's worth);
Conway's is $2.00 payable upon receipt.

We do not yet have a URL (Web Site) but we are working on it.

Rudy van Wingen
Como Roundhouse Products
David Conway
Conway Locomotive Company

Date: Thu, 30 Mar 2000 20:28:19 -0000
From: "Frolin Marek"

Subject: Narrow Gauge diesel construction


I am building a narrow gauge road switcher, to run 7.5" gauge track. And would be interested to see what others are doing or have done, that is similar.

If you are familar with a GE 70-ton loco, then the Southern Pacific's NG line, the C&C in California had a 50-ton version, called the Little Giant. Cut 10 feet from the middle to shorten it, lower the engine hood area so it is below cab roof by a couple feet (so engine could see over the hood looking forward), and you have an idea what I'm building.

I am building the trucks from scratch, being cut out from 1/2" thick by 4in tall plate steel. Using 'Roll Models' motor/gearbox assemblies, and 7in ng wheels. And will run 24v with a 4QD DC throttle controller, with two marine trolling motor, deep cycle batteries.

All goes well, I will ride inside the cab. Will pull the cab roof off, the sides of the cab will swing open to allow me to sit inside, feet down the engine hood area. As the cab side-walls will be about 24in tall, my shoulders and head will clearly be sticking out the cab roof area.

You can see a line drawing and some photos, on my web-site, in the the sub-section for Marek Mountain Western; my 7.5" gauge ventures. As progress comes along, construction photos as well.

What are you doing, or have done? I'd like to hear!

San Antonio, Texas

Date: Thu, 30 Mar 2000 15:51:53 -0500
From: "Bruce"

Subject: Re: Narrow Gauge diesel construction

Greetings Frolin,

I am building a narrow gauge, 2 1/2" scale, 4 wheel switcher (critter) to aid in the construction of my private railroad. Mine will be gas powered and have a simple forward/reverse gearbox. I decided to go with gas so I wouldn't have to worry about batteries running down even in heavy use (hauling dirt and ballast). I have done some reasearch on noise elimination and may even go with a water filled muffler. There are many sound absorbing materials on the market now and some made to withstand the high temperature of an engine compartment. To build a quiet locomotive, the motor will be housed under the hood with a cooling fan behind the front grill. Air outlet under the locomotive. I made my wheels from continious cast iron bar and frame is 1/2 hot roll steel. 1/4" steel deck and the superstructure will be 16 gauge steel. I made the axles so adjustment between 7 1/4" and 7 1/2" will be possible. I also have a line sketch of my locomotive on my webpage. If I can find the time, I might even post some progress photos of my locomotive.....ahhh time... the one thing we all wish we could find more of.

PS Your hompage address does not work.

Bruce Mowbray (president)
TMB Manufacturing And Locomotive Works
Springville, PA

Springville & Southern RR, The Quiet Springs Line
(Now Under Construction)
7 1/4 " gauge live steam railroad (critters too)
1 1/2" - 2 1/2" scale
My narrow gauge rules:
    Safety First!
    Keep Off!
    Drain Daily!

Date: Fri, 31 Mar 2000 00:02:01 -0000
From: "Jeff Badger"

Subject: Re: Narrow Gauge diesel construction

Hi all,

I too am building a 2.5" scale narrow gauge switcher based loosely on the D&RGW #50 Davenport. Using Roll Models Inc. parts it is Gas/Hydraulic.

7" wheels 5.5 HP electric start Honda Gas motor. Am also getting ready to build a 2.5" scale live steamer.

Already have 330' of track and going for about 1,100' when done in my yard. Will post a pic somewhere on this site.

Jeff Badger
Soquel Pacific Coast Railway

Date: Fri, 31 Mar 2000 00:12:40 -0000
From: "Jeff Badger"

Subject: Davenport Gas Hydraulic Pics

I have now posted some recent pics of my Davenport Gas Hydraulic 2.5" scale locomotive. Any questions feel free to ask. Go to the POST section for the files to download.

Jeff Badger

Date: Fri, 31 Mar 2000 00:34:41 -0000
From: "Rudolph (Rudy) van Wingen"

Subject: Re: Davenport Gas Hydraulic Pics

Jeff -

I went to the POST section; nothing there that I could find...? Why did you POST the photos rather than attaching them?

Rudy van Wingen

Date: Fri, 31 Mar 2000 00:57:16 -0000
From: "Rudolph (Rudy) van Wingen"

Subject: Reply to Howard Springer...

Hi Rudy. I just joined.

You need one of my ballast cars for your RR. We haul 1/2 yard + of ballast and lay it down in a beautiful windrow along the ends of the ties. Both sides individually controllable. I'm going to build some more next winter - thought I'd write it up for 7+, after I take some construction photos.

Using air-released, spring set brakes. They seem to work OK.

Unfortunately, outside of the brake wheel you sent, I wasn't able to use any of your stuff as I had to match the 1-1/2 couplers on other cars. I had intended to use your coupler pockets, and waited for some time for them. Finally welded rect tube pockets on, and yours arrived the next day!

Maybe next time.
Howard Springer
Welcome aboard, Howard!

How about attaching a photo or two of your cars; they sound like just the ticket! Better yet, bring the string down with you to JT&S and we'll build some road bed...

About the couplers: A lot of the fellows are slotting the knuckles on the 2.5" couplers and putting a pin down through the top (a-la the logging/mining roads). They then make up a couple of 1.5" couplers with a "U" strap on the shank to match the slots and pins, this forms an adapter that is universal...

If you can't use the pockets, send 'em back for credit; I've got lots of people who want 'em.

While you're at it, write up those air brakes, too!

Rudy van Wingen
Como Roundhouse Products

Date: Thu, 30 Mar 2000 17:04:59 -0800
From: "Rudolph P. van Wingen"

Subject: Re: Narrow Gauge diesel construction

Bruce -

We are building a pair of 2.5" scale D&RGW #50 0-4-0 switchers from steels using original Davenport drawings and photos/data from CRRM. Sounds similar to your efforts, except that we are building gas-electric using Briggs & Stratton 16hp Vanguard (2 cylinder) motor-gen. as prime mover operating a 0-60VDC drive motor run off the 240VAC output. The Vanguard motors are inherently very quiet and well balanced. More HP than we need but that is the smallest available.

Attachment shows drive motor and reduction gears installed.

Frame, drive motor and reduction gear of gas-powered Davenport in 2.5

Rudy van Wingen
Como Roundhouse Products

Date: Thu, 30 Mar 2000 21:03:55 -0500
From: Jimmy

Subject: Re: Re: Narrow Gauge diesel construction

Would like to see a scanned photo of it when finished. We have the twin (full size) to the #50 Davenport here at our railroad which we operate on week ends during the summer. The LGB model is painted green (for the #50), if it were red, it would be ours.


Date: Fri, 31 Mar 2000 04:09:24 -0000
From: "Dave Breit"

Subject: building stuff

Hi guys, its me again... Not much progress this month. Too Many house things to do, landscaping the front terrace on the house....
Big pain....Laying R.R. ties to hold the levels ,,(what else?)..Working on tooling on the lathe, gotta mount the new aloris type tool holder, Making mounts for both lathes. And changin the el cheepo set screws to good ones, stripped the head on one just tryin it out...Yuck....getting misc stuff together to build a flat car 1880 style...this should be interesting...Hope good health and good weather follow your rails...

Date: Thu, 30 Mar 2000 20:26:39 -0800
From: Russ Warr

Subject: Re: Welcome to 7-plus-NGM

I look forward to talking soon


Date: Thu, 30 Mar 2000 23:58:58 EST
From: btflco@aol.com

Subject: Re: Re: Davenport Gas Hydraulic Pics

Sorry Rudy, I meant to say that the pics are listed in the FILE section of the 7plus NGM


Date: Thu, 30 Mar 2000 20:08:26 -0600
From: "Tom Casper"

Subject: RE: Narrow Gauge diesel construction

Interesting photo. Post some more. Can you scale one up to 3/3/4"?

Tom Casper

Date: Fri, 31 Mar 2000 06:22:42 -0000
From: "Frolin Marek"

Subject: Re: Narrow Gauge diesel construction


Looked at the photos, looks like the same Roll-Models setups I have, but I have the 24v electric motors. And I'm using a controller from 4QD in England; was about $200 for the 120 AMP multi-function throttle.

The correct web-site for my home-page is... http://home.att.net/~FrolinMarek/

From here you would go in to "Marek Mountain Western" for the 7.5" NG venture, or MMRR for the indoor Gn3 venture. Or MMGS for my Colorado excursion info.

It is correct in the links area but typed it wrong in the message. Or you can just go to WWW.FROLIN.NET, once they throw the switch any day now.


Date: Fri, 31 Mar 2000 01:42:53 EST
From: btflco@aol.com

Subject: Re: Narrow Gauge diesel construction

It is the same gearbox, only with a hydraulic motor instead of electric...

Will be testing it this weekend. As this is the first gas/hydraulic that RMI has developed, it will be interesting to see how this compares with the electrics.

Jeff Badger

Date: Fri, 31 Mar 2000 02:37:21 -0800
From: Russ Wood

Subject: New member

Hi gang,

Just signed up.


Date: Fri, 31 Mar 2000 08:06:23 -0500
From: "Bruce"

Subject: Re: Narrow Gauge diesel construction

Frolin, Your address worked this time. I put it in my favorites and will visit now and again.
The design I chose was a drawing in the "Narrow Gauge Gazzette" magazine from a few years back. I looked at the model (On3 scale) and fell in love with it. You know....love at first site kind of thing. I liked it because the cab and hood have all straight sides which are easy to make in my shop with my basic sheet metal equipment (shear and box&pan brake).

Bruce Mowbray (president)
TMB Manufacturing And Locomotive Works
Springville, PA

Springville & Southern RR, The Quiet Springs Line
(Now Under Construction)
7 1/4 " gauge live steam railroad (critters too)
1 1/2" - 2 1/2" scale
My narrow gauge rules:
    Safety First!
    Keep Off!
    Drain Daily!

Date: Fri, 31 Mar 2000 15:41:06 -0000
From: "Donald Dickens"

Subject: And we're off...

Having a 7+ Narrow Gauger list is a great idea to my mind. If there had been such a thing as the internet I probably would never have started the 7+ Narrow Gauger news letter. I can recall several subscribers who thought they were the only one who had this crazy idea about changing the scale and keeping the common gauge. Then they found that they could, as one man said, "Come out of the closet".

To my mind, again, a lot of the popularity of the old news letter was due to the tips that I picked up from tracks that I visited. For example: Using an old automobile rear view mirror on a stick to check track alignment without laying down on the ground. Using the chord table for setting out curves. Using an air-powered nail gun to spike down track.

This list could harvest a lot of such good tips since it is in effect, a visit to tracks around the world. Can we set up some archive for such tips. Another list that I belong to has a similar archive (on another unrelated area of interest) Some volunteers copy off the tips and enter them into the archives. It even has a search engine and archives the back digests.

Good Job Hubert!
Don Dickens

Date: Fri, 31 Mar 2000 16:15:29 -0000
From: "Hubert Wetekamp"

Subject: Wow!!!

Hello from the listowner,

I'm really surprised and did not expect such an overhelming result:

41 subscribers in only ONE day!!! That's impressive.

Thank you to all members, who past the information to their friends and customers (special thank to Rudy of Como Roundhouse Products). That brought us a lot of subscribers.

One short note for attached files: They are not allowed. I think, it's a better idea to post files in the file-section at onelist, or, if there will not be enough space, someone can set up a special web-page.
Many of our members receive their mails only once a day in the digest version (that gives a better overview in your mailbox, especially, when you're a subscriber of more than one list), and in the digest-version, attached files are automatically removed.

So, if you wish to share a photo, post it in the files-section.

And in future, we can set up a FAQ as well an data-base at onelist.

So, that's all for now.

A heartly welcome to all subscribers, and thank you for joining.

Your list-moderator

Hubert from Germany

Date: Fri, 31 Mar 2000 12:09:46 -0500
From: "Stan Zdonick"

Subject: Re: attachments

I'm a moderator for Pioneer Valley Live Steamers list, (PVLS@onelist.com). We allow attachments but ask that they be limited to 56K in size. The same is true of another list I belong to. Most email packages can be configured to limit attachment size. I use Eudora and I can set it to only retreive the first 56K of a message. The rest is left on my server where I can retreive it if I wish.

Attachments are saved in the archives now. If a person only gets the digest they can pull the image from the archive. The archive storage does not impact the files area for the group.

That's my two cents in favor of attachments.

Date: Fri, 31 Mar 2000 17:43:54 -0500
From: Bobber

Subject: Re: Re: attachments


I favor attachments with a reasonable limit and look forward to sharing photos. Bobber

Date: Fri, 31 Mar 2000 22:12:03
From: Ian McKinley

Subject: Re: Re: attachments

Hi every one. Thank you Hubert for starting this list. I have mixed feelings about attachments. I am on another list that is allowing attachments and would like to make the following comments.

It is true that it does increase download time by 20 to 30 seconds for every photo. However it takes longer than that to go to Onelist and download the photo. By the way, I am using an older computer and those of you with new ones will get everything much faster.

Another problem that I and several others on the list have is one person who uses outlook express for Mac. He places the photo inside the e-mail instead of as an attachment. This seems to be a newer feature of many top of the line mail programs. However those of us with older programs (Eudora 16 bit will not upgrade to this function) cannot view his photos. :-( This is the only person who is using this feature and even though several of us have asked him to change he ether can not or will not accommodate us. Therefore I would ask that if attachments are to be allowed on this list they be limited to the older method of an attachment to the E-mail and not placed in the body.

Having said all that I do like attachments because it is so much easier to view the photos.

    Thank You

    Ian McKinley

Date: Fri, 31 Mar 2000 23:07:58 -0500
From: "Stan Zdonick"

Subject: Re: Mac attachments

Go to the message archive and view the problem message there. Since the archive is web-based you should be able to view the message with the enclosed attachment.