[Weter]

Is it good candidate.
http://www.elvastowe...attach_id=92793

[Traindude]

Weter, on 05 February 2023 - 06:06 AM, said:

Is it good candidate.
http://www.elvastowe...attach_id=92793

Yes! Though I haven't seen this model's creator (midneguy) on the boards lately...

In the case of tender boosters, I was looking on the train-sim.com file library for an old Camelback 2-8-0 model that we can retrofit with the booster functionality (and reletter for D&H), but alas, none of the available Camelbacks have a 2-8-0 wheel arrangement.

I would also like to add that we should also add provisions for booster steam gauges--essentially the same as a steam chest pressure gauge but it only shows the steam pressure in the booster's intake line. Here is one example. Perhaps label it "ORTS_BOOSTER_PRESS" in the .cvf files?

[Weter]

This author have created many of very good models, which we can see in ET library.

[ATSF3751]

I have recently been in contact with Derek (midneguy) and he has decided to quit doing models for the foreseeable future and taking a break.

There are many reason he told me for doing so but he did let me know that he may pop on here some day and check out what is going on so he can get back up to speed with things. This does not mean however he will get back into modeling.

I am sure he would be willing to let us use his CB&Q hudson for testing purposes. He did tell me anyone is able to use his models as they are free and wants to keep them that way so we can use them for testing if we would like. Another one of his models we could use for testing is FRISCO 1522 as it also has a booster on it.

I hope this clears some things up for some as to why he has not been on for awhile.

Brandon

[Weter]

And another famous candidate for development trailing-truck boosters equipped model:
http://www.elvastowe...ders-and-crews/

[steamer_ctn]

As a bit of a teaser, I am hoping to add a patch to the Unstable version of OR in May that will allow the configuration of Duplex engines, and steam booster engines fitted to the locomotive.

Below are two screenshots demonstrating the use of multiple engines on a steam locomotive.

The test model that has been created is based upon the PRR T1 which was a duplex locomotive, and one of the units had a steam booster engine fitted to the trailing bogie of the locomotive.

Looking at the screenshots, the three separate engines can be seen in the Advanced HuD. The first screenshot shows the booster turned off, and the second screenshot shows the booster contributing TE to the locomotive.

This patch has required extensive changes to the steam locomotive code, so it will require careful checking once it is released.

Attached thumbnail(s)

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[lineman]

That would be !cool!

[scottb613]

Hi Peter,

Looking good - thanks for all your efforts. It will certainly be interesting how this all shakes out.

:)

Regards,
Scott

[Traindude]

steamer_ctn, on 01 April 2023 - 09:45 PM, said:

As a bit of a teaser, I am hoping to add a patch to the Unstable version of OR in May that will allow the configuration of Duplex engines, and steam booster engines fitted to the locomotive.

Below are two screenshots demonstrating the use of multiple engines on a steam locomotive.

The test model that has been created is based upon the PRR T1 which was a duplex locomotive, and one of the units had a steam booster engine fitted to the trailing bogie of the locomotive.

Looking at the screenshots, the three separate engines can be seen in the Advanced HuD. The first screenshot shows the booster turned off, and the second screenshot shows the booster contributing TE to the locomotive.

This patch has required extensive changes to the steam locomotive code, so it will require careful checking once it is released.

Cool! Now my Challenger can operate more realistically! I was about to submit a proposal for suggestions for articulated and Duplex locomotives, but you've gone ahead and done it!

...Well at least part of it, there's still some other issues we need to address for articulateds, one being illustrated below:


...The same problem would need to be addressed for both the front cylinder cock emitters and any front coupler/airhose animation shapes (should I choose to equip the Challenger with any), but that's another story...

[steamer_ctn]

In the latest Unstable version I have released changes to allow multiple steam engines to be added to a locomotive.

NOTE: This is very much a work in progress, and only addresses the physics at the moment. Visual and audio effects will follow at a latter stage. Also some parameters in the ENG file may change as development progresses.

To see how it works download the PRR T1 from my site and give it a go. The T1 has been configured with three steam engines, the two duplex ones, and a steam booster.

These changes required a significant change to the steam code so it is possible that some bugs may have been introduced. If you think that you have found a bug, then test with the appropriate CTN model, and then bring it to my attention so that I can debug it.