Search found 87 matches

by Scrat
Fri Jun 28, 2019 8:10 am
Forum: The Workshop
Topic: Lion
Replies: 2
Views: 558

Lion

As some may have noticed, there is another wreck in my workshop for an overhaul. This time it is a 5" gauge LION ti the Titfield Thunderbolt plans. It is an unfinished, stripped model. Some parts have been lost, others damages. I already cleaned and painted the frames, worked on the cylinder block a...
by Scrat
Tue Jun 11, 2019 10:56 am
Forum: For Sale and Wanted
Topic: LBSC Titfield Thunderbolt
Replies: 1
Views: 567

LBSC Titfield Thunderbolt

Looking for plans for the 5" Lion aka Titfield Thunderbolt.

Got a semi-finished one and a box of bits but no plans or Articles.
by Scrat
Wed Feb 06, 2019 10:01 am
Forum: The Workshop
Topic: Radio-Controlled Locos
Replies: 15
Views: 1493

Re: Radio-Controlled Locos

The failure of the speed controller is highly unlikely. Most use H-bridge output so at two transistors have to fail to short circuit. If one fails (let´s say one for forward) and you want to go backwards there will be a short circuit of the supply voltage, taking out the fuse. So the first failure i...
by Scrat
Tue Feb 05, 2019 7:55 am
Forum: The Workshop
Topic: Radio-Controlled Locos
Replies: 15
Views: 1493

Re: Radio-Controlled Locos

This topic seems to have gone cold.... My armoured railcar (PZ201) is now ready to run under RC. I used 4QD components. Safety features as mentioned in my last post. I addition the 4QD controller has an ignition function. This can be coupled to a set of NO contacts on an additional relay and be used...
by Scrat
Mon Feb 04, 2019 8:21 am
Forum: The Workshop
Topic: drain cocks
Replies: 1
Views: 399

Re: drain cocks

I do. Reichsbahn class 55. As with any equipment on a steam loco, these automatic drain cocks need maintenance (a good clean every now and then). I unscrew the cap, remove the ball and clean the inside of the casing with a Q-tip. I have these automativ drain cocks on all my steam locos and never exp...
by Scrat
Sun Dec 16, 2018 10:02 pm
Forum: The Workshop
Topic: T26, correct shade of blue
Replies: 1
Views: 434

T26, correct shade of blue

Hi,

I am looking for the RAL code of th blue colour of Class T26 number 490 preserved at Bressingham.
The closest matchi I think is RAL 5022 "Nachtblau".
Does anyone have a better Idea?
by Scrat
Wed Oct 10, 2018 7:57 am
Forum: The Workshop
Topic: Radio-Controlled Locos
Replies: 15
Views: 1493

Re: Radio-Controlled Locos

Going a bit further. The 4QD controllers have a failsafe system. If power is on but not commanded it will go to failsafe mode and switch off. So the only critical path left would be the rc receiver or RC to 4QD adapter commanding full speed due to a hardware failure. A simple stuck-at-high failure c...
by Scrat
Thu Aug 09, 2018 7:12 am
Forum: The Workshop
Topic: Radio-Controlled Locos
Replies: 15
Views: 1493

Re: Radio-Controlled Locos

I am just putting together a "testing project". The artillery car of the PZ201 armored train has been on my list for quite some time. Now I have started. I will show how I did the RC stuff. As the RC system itself has a failsafe mode that switches off all controllers after not receiving any valid si...
by Scrat
Fri Jul 13, 2018 6:40 am
Forum: The Workshop
Topic: Radio-Controlled Locos
Replies: 15
Views: 1493

Re: Radio-Controlled Locos

Hi Dave, I agree. We do not need to be too precise as there are many ways of dealing with the problem. If it works, it can be used. for me the important issues are: RC control of a NO relay: How can be assured that if the RC goes haywire it is still reliable enough to shut off the relay? Not an easy...
by Scrat
Tue Jul 10, 2018 2:55 pm
Forum: The Workshop
Topic: Radio-Controlled Locos
Replies: 15
Views: 1493

Re: Radio-Controlled Locos

This is true. We need to assess the rangers and their probability. One can always construct a "what if" that leads to desaster. I would like to get a group together and share experiences, perform a simple FTA, collect available data on mishaps and then try to come up with a sensible and safe procedu...
by Scrat
Tue Jul 10, 2018 7:36 am
Forum: The Workshop
Topic: Radio-Controlled Locos
Replies: 15
Views: 1493

Re: Radio-Controlled Locos

I have never had trouble with relays as reversers. My locos have wired controllers using sub-D plugs (with the screws removed) underneath the buffer beam. If the loco separates from the train, all I have to do is hold the handset. The plug will come off and the loco will stop. On my class 216 I use ...
by Scrat
Thu Jul 05, 2018 8:10 am
Forum: The Workshop
Topic: Radio-Controlled Locos
Replies: 15
Views: 1493

Re: Radio-Controlled Locos

Hi Dave,

i hope to start a discussion here with members sharing their experience.
So we will not have to re-invent the wheel.

Holger
by Scrat
Sat Jun 30, 2018 10:25 am
Forum: The Workshop
Topic: Radio-Controlled Locos
Replies: 15
Views: 1493

Radio-Controlled Locos

Concerning the article in the last TURNOUT. A relay to cut off power in case of emergency (mosfet failure to short) is an option. But relays can also become troublesome.... I would like to suggest something similar to the well-known "crowbar-circuit". The crowbar is normally used as overvoltage prot...
by Scrat
Wed Jun 06, 2018 9:20 am
Forum: General Discussion
Topic: Turnout Topics
Replies: 2
Views: 714

Re: Turnout Topics

Wow, i´m impressed....

111 Views,
only 2 Votes,
only 1 Reply.

As 100 per cent of the votes are "no" there will be no further articles from me.
by Scrat
Mon May 07, 2018 7:55 am
Forum: General Discussion
Topic: Turnout Topics
Replies: 2
Views: 714

Turnout Topics

9Fman wrote:
Wed May 02, 2018 8:09 am
Get whatever you can to Dave....
I could write some articles e. g. about Bavarian secondary line locomotives such as the "Glaskasten".

This is mine:
Image

Please let me know if you are interested.

Holger
by Scrat
Thu Jul 27, 2017 6:32 pm
Forum: General Discussion
Topic: Looking for an Article
Replies: 1
Views: 1252

Re: Looking for an Article

Problem solved.
I now have the original ME.
by Scrat
Fri Jul 07, 2017 3:28 pm
Forum: General Discussion
Topic: Looking for an Article
Replies: 1
Views: 1252

Looking for an Article

Could anyone please send me a scan of the Rainhill article published in Model Engineer, September 3, 1942, page 229 and following?
I bought that loco from the builder´s grandson and brought it back to running order.
All I have is a scan of the first page.

Best regards

Holger
by Scrat
Mon Jun 19, 2017 2:32 pm
Forum: General Discussion
Topic: Doug Hewson's wagon book
Replies: 3
Views: 2413

Re: Doug Hewson's wagon book

Still waiting for mine.
I guess that shipping to Germany will take about a week longer.
by Scrat
Sun Dec 11, 2016 9:37 pm
Forum: The Workshop
Topic: Sentinel steam shunter
Replies: 0
Views: 1963

Sentinel steam shunter

Hi, a friend and me are working on the Sentinel shunter to the published "Sirena" articles. The boiler will be another design but for the rest we will stick to the description. We have the articles but no drawings. I read that there has been a battery-electric model of a Sentinel type 8805 built by ...
by Scrat
Fri Jul 22, 2016 10:54 am
Forum: Freight Rolling Stock
Topic: German Wine barrel wagon
Replies: 0
Views: 1716

German Wine barrel wagon

As there is not much happening under this topic I would like to show my newest addition: These wagons were privately owned so every supplier/wine merchant had them built to his specifications. There were some with one barrel, some with two or even three. Some were fitted lengthwise, others not. Some...