Choice of prototype

[EVGEN]

Evgen is it your first try to build a locomotive?

Yes. We need to start, and then time goes by, and I choose the prototype.

Your shop must be very big and your machines also, how could you handle the sice of the parts?

There is access to a number of machine tools. The equipment is old, but still able to serve as faith and truth. There is a modern CNC, it's enough to create a molded form.

There is access to a number of machine tools. The equipment is old, but still able to serve as faith and truth. In stock a modern CNC, the capacity of which is sufficient for making tooling for casting.

I plan to organize the production of the most critical parts on the side.

I'm going to do the foundry work myself.

[super7b]

The OP asked for help in deciding on a prototype to build and most of the replies have been tending towards warning him against building on the grounds of cost/size/complexity/timescale. The OP appears to have the necessary kit and knowledge to do the job, after all it is only engineering, there are enough New Build full size locos built in the 21st century (Tornado for one) or being built to prove that nothing is impossible. So I would say to the OP, make a decision and get on with it, if you hit a problem, throw time/money/experience at it and move on to the next bit.

Anything is possible, man on the moon etc.

[Cary Stewart]

In my opinion you have made your choices as to gage and prototype. Perhaps the discussion got off the track a little but the advice was OK. As there are other 10 1/4" gage railroads already in operation your choice is probably a good one. Track gages are a mess. For example here in Los Angeles is a very large park, some 4500 acres, with a public hauling RR at each end. They are owned and operated by the same company. However, one is 16" gage and the other is 18" gage. This came about when the first, the east one was purchased as 18" gage and locos and rolling stock were built to this gage. Later the second RR was developed in Travel Town, a outdoor RR museum, with a loco and train that had belonged to Gene Autry the cowboy actor and businessman. That 4-6-2 and its passenger cars were 16" gage and that is the way they are now after several decades of operation. The loco is now gone but the passenger cars remain. That said I wish you the very best of success in your project. Let us know of your progress. I am old so may not be around to see your finished project but that's OK.
Cary

[EVGEN]

Thanks to all!

To be honest, I would choose a scale of 1: 5. That corresponds to 287 mm. Unfortunately, I can not dictate my standards, so it's worth choosing from the standard ones. 10 1/4 in is a good choice. The model will have a scale of 7 1/4 inch narrow gauge locomotive.

As a prototype, having consulted with senior comrades from the NWHS, I decided to choose a late locomotive of the class Y-3a.

[BClemens]

Here's the perfect locomotive for you and you could make this narrow gauge too....no sweat! It's a 2-4-6-8-10-12-0

[Steamchris]

BClemens,


so funny ....

thx for sharing


Regards
Chris

[EVGEN]

Here's the perfect locomotive for you and you could make this narrow gauge too....no sweat! It's a 2-4-6-8-10-12-0

Another "masterpiece" of engineering thought

[NP317]

And here's another.
~RN

[Asteamhead]

NP317,
like those (mad) prototypes
Asteamhead

[Steamchris]

Hi Guys,

or this famous German "Pacific"

so many good prototyps !

All the best
Chris

[NP317]

It needs some blind drivers...
~RN

[Builder01]

Somebody has way too much time to spend with photoshop!! Get back into the work shop and make a few parts!

David