My N&W class A 1239 (gauge 5", 1 in 10 scale)

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Asteamhead
Posts: 360
Joined: Tue Jul 31, 2012 1:59 pm
Location: Germany, Duesseldorf

Re: My N&W class A 1239 (gauge 5", 1 in 10 scale)

Post by Asteamhead » Sat May 05, 2018 5:26 pm

Hello fans,
Just one more step to finish the project: The working power reverse :D
All parts are made of bronze or stainless steel. It's now working on air but is intended to work on water taken from the boiler :idea: .
Max force is about 80 pounds, travel is + / - 21 mm.
The (plastic) piston ring is made by Busak&Shamban, the valve is made of a shaft of a milling tool of just 4 mm diameter.

Asteamhead
Attachments
A power reverse, cylinder parts_1045red.jpg
Cylinder is soldered from parts made of bronze.
Channels are of just 1 mm diameter
A power reverse_1146red.jpg
Power reverse working on air

Asteamhead
Posts: 360
Joined: Tue Jul 31, 2012 1:59 pm
Location: Germany, Duesseldorf

Re: My N&W class A 1239 (gauge 5", 1 in 10 scale)

Post by Asteamhead » Tue Jun 12, 2018 5:37 pm

Hello fans,
During two meetings at Oberursel and Kassel the A ran very well :D . A friend of mine worked as engineer most of the time with passenger trains and had fun.
The power reverse now works on hot (boiler) water as intended. The stoker had some difficulties regarding the movements between locomotive and tender, which were in excess of the calculated limits. Thus hand firing was still necessary yet :( . This problem will be fixed a.s.a.p. :idea:
By the way we fired anthrazite coal of finest quality - the almost last being digged from 4.500 feet below at Ibbenbueren, the very last such pit in Germany. It will be closed before the end of the year.
Some important parts are still to be added yet. CC-air pumps, sandboxes, front coupler and 6-wheel tender bogies are still missing. Some work for next winter-season.

Best regards
Asteamhead
Attachments
A at DBC-Kassel 6.2018_0039red.jpg
A at DBC-Kassel, smoke is lifted easily above the engineer. Not just clean anthrazite of course ...
A 1239 side view_0041red.jpg
A side view

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NP317
Posts: 1488
Joined: Tue Jun 24, 2014 2:57 pm
Location: Northern Oregon

Re: My N&W class A 1239 (gauge 5", 1 in 10 scale)

Post by NP317 » Wed Jun 13, 2018 8:50 am

A remarkable achievement!
~RN

Asteamhead
Posts: 360
Joined: Tue Jul 31, 2012 1:59 pm
Location: Germany, Duesseldorf

Re: My N&W class A 1239 (gauge 5", 1 in 10 scale)

Post by Asteamhead » Fri Aug 24, 2018 10:44 am

NP317, thank you!
Now some more information regarding steaming by means of the stoker.
Pure anthrazite coal of high quality seems to be hard stuff for the stoker :? . I did some work to improve the coal crusher but still given coal size wasn't the best to be fed by the stoker. A steamer had developed a working external coal crusher which delivers the desired size to be fed by the stoker pretty easily :idea: . Still not perfect, the locomotive ran by stoker at several trips now. Some hand fireing is still needed to build up a stable firebed bevor starting yet.
While I'm working on further improvements, the loco is running fine so far.
Please have a look at the crane, built back in 1954 (!) by the late Mr. Moch, which delivers coal into the crusher - all just for fun :lol: !

Best regards
Asteamhead
Attachments
A pulling hard on a 7.25 engine at DBC-T 2018 _0011red.jpg
A pulling a heavy 7.25 loco at DBC-T meeting
A HT-auger with max size of coal_1179red.jpg
HT stoker, auger with max size of coal which can be fed without permanent crushing
A HT-stoker, view on the coal crusher _1181red.jpg
HT stoker, view on auger with built in coal crusher
A cab engineers side with 24-RL bracke stand_1086red.jpg
A view into the engineer's cab side, now with 24 RL brake stand
DBC-T crane with coal crusher_1349red.jpg
Crane, feeding the coal crusher

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PRR5406
Posts: 617
Joined: Wed Oct 07, 2009 7:12 pm
Location: Eastern Maine

Re: My N&W class A 1239 (gauge 5", 1 in 10 scale)

Post by PRR5406 » Fri Aug 24, 2018 3:27 pm

What an achievement!
"Always stopping my train, and risking my ankles, with American made, New Balance sneakers."

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JBodenmann
Posts: 2693
Joined: Sun Oct 26, 2003 1:37 pm
Location: Grover Beach, California

Re: My N&W class A 1239 (gauge 5", 1 in 10 scale)

Post by JBodenmann » Wed Sep 12, 2018 3:06 pm

Hello My Friends
The A is absolutely magnificent! I wish I could see it in person.
Jack

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PeterCraymer
Posts: 175
Joined: Thu Oct 02, 2003 6:57 am
Location: Maysville, Ga.

Re: My N&W class A 1239 (gauge 5", 1 in 10 scale)

Post by PeterCraymer » Fri Sep 14, 2018 5:51 am

jack,
I have seen it in person, and the photos and video seen here and on YouTube don't do it justice! It is a work of art and faithful to the prototype. Just incredible that it works and works well to be 1" scale. Asteamhead has created a magnificent operating scale model! Each addition makes it even better!

Peter

Asteamhead
Posts: 360
Joined: Tue Jul 31, 2012 1:59 pm
Location: Germany, Duesseldorf

Re: My N&W class A 1239 (gauge 5", 1 in 10 scale)

Post by Asteamhead » Sat Sep 15, 2018 5:26 am

Peter, Jack and PRR5406,
Thank you all for your kind recognition! Knowing well my A isn't complete yet, your words encourage me to finish it with enthusiasm.

But sorry for I am busy now with boiler repairs and inspection of my first engine DB class 44 1167. We are planing to run a record ore train, the so called 'Langer Heinrich', which had been running as late as 1977 at Oberursel, May 2018. This train mostly had 2 class 44 (043, 044) 3-cylinder engines on the point.
Maybe we can pull that train of up to 50 cars with the lone A on the point - just for fun, too.
If you like, please have a look at this Youtube link:

https://www.youtube.com/watch?v=UiDVRHYvbUs

Best regards
Asteamhead

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