Search found 921 matches

by martin goodall
Mon Jan 25, 2010 3:57 pm
Forum: Guest Book
Topic: EM wheels on P4 track
Replies: 82
Views: 59862

Re: EM wheels on P4 track

According to my vernier gauge, my P4 back-to-back gauge measures 17.7mm. I confirm that I have set all my track clearances using P4 gauges throughout. Although I recall that I did set the checkrails and crossing flangeways on some turnouts 'inside out' (i.e. check rails to the crossing flangeway gau...
by martin goodall
Mon Jan 25, 2010 10:48 am
Forum: Wagons
Topic: Wagon Suspension
Replies: 68
Views: 21405

Re: Wagon Suspension

Sorry, chaps. When I wrote what I thought was my last contribution on this topic for the time being, I had not realised there was a whole extra page of queries. The following is just to answer the factual questions. (I’ll leave the philosophy to others.) Rodney Hills : Is it possible that you can su...
by martin goodall
Mon Jan 25, 2010 9:49 am
Forum: Wagons
Topic: Wagon Suspension
Replies: 68
Views: 21405

Re: Wagon Suspension

A little off topic ("Wagon" suspension), but I assume that while rolling stock with EM profile wheels runs on P4 track, the same cannot be said of locos? David I've had my fun in this debate (for now at least), so it's probably time to get back to some model-making, just as Mr Chairman su...
by martin goodall
Fri Jan 22, 2010 3:39 pm
Forum: Wagons
Topic: Wagon Suspension
Replies: 68
Views: 21405

Re: Wagon Suspension

In those days I only ever used P4 wheels. It never occurred to me at that time that you could run EM-profile wheels through P4 crossings, and that in fact they actually run better on P4 track than P4 wheels do. Bearing in mind the exchanges on this topic over the past few days, I laughed out loud wh...
by martin goodall
Thu Jan 21, 2010 2:35 pm
Forum: Wagons
Topic: Wagon Suspension
Replies: 68
Views: 21405

Re: Wagon Suspension

Unfortunately, the Burford Branch is not portable and not therefore exhibitable. I hope to be able to show it to friends who are interested later this year when I have done a bit more scenic work on the layout. (I gather the layout has now appeared in MRJ No.196, but my copy has not yet come to hand...
by martin goodall
Thu Jan 21, 2010 2:14 pm
Forum: Railway Buildings
Topic: What's inside a goods shed?
Replies: 46
Views: 28698

Re: What's inside a goods shed?

I've only just come across this thread. A couple of points occur, picking up on what as been written by others. The shed crane would typically have a capacity of about 30cwt. My guess is that nearly all goods sheds would be so equipped, whereas a yard crane was not always provided. On the other hand...
by martin goodall
Tue Jan 19, 2010 10:39 pm
Forum: Wagons
Topic: Wagon Suspension
Replies: 68
Views: 21405

Re: Wagon Suspension

If I can pick up a couple of points from Mark: “ The important thing is that the full standards match each other .” Unfortunately they don’t. To quote Ray Hammond (writing on the subject in 1976) “When the Protofour standards were published in 1966/7, it was readily apparent that there were two nota...
by martin goodall
Tue Jan 19, 2010 3:45 pm
Forum: Wagons
Topic: Wagon Suspension
Replies: 68
Views: 21405

Re: Wagon Suspension

In answer to ‘Flymo’, I confirm that all of my wheels are replacement EM wheelsets, in practice from Kean-Maygib (the steel ones – excellent) or from Alan Gibson (8-spoke and split-spoke). Flange depth (0.25mm deeper) is not the only difference; the flange width at the flange root is also wider (by ...
by martin goodall
Tue Jan 19, 2010 10:06 am
Forum: Wagons
Topic: Wagon Suspension
Replies: 68
Views: 21405

Re: Wagon Suspension

Just to clarify a couple of points. First, my track is built to P4 standards. Flangeway and check rail cleaances are all within P4 tolerances; they have not been adjusted in any way to accommodate the EM-profile wheels. I can run P4 rolling stock on my layout, and I still have some vehicles which ha...
by martin goodall
Mon Jan 18, 2010 5:40 pm
Forum: Wagons
Topic: Wagon Suspension
Replies: 68
Views: 21405

Re: Wagon Suspension

If you were setting out with a clean sheet, then you might consider building the layout in EM gauge as an alternative to P4 (or possibly even in 00 gauge). But the problem is you already have a P4 layout (track laid and wired, etc.) and you want to do some 'quick and dirty' conversions of RTR stock ...
by martin goodall
Mon Jan 18, 2010 9:34 am
Forum: Wagons
Topic: Wagon Suspension
Replies: 68
Views: 21405

Re: Wagon Suspension

The tyres of EM wheels are 0.25mm (10-thou) wider than P4 wheels. Thus they need half a millimetere more space between the inside frames of bogies or between wagon solebars on RTR stock. The axles are, of course, the standard 26mm length (same as P4). Frankly, I don't find this a problem. The overal...
by martin goodall
Sun Jan 17, 2010 6:13 pm
Forum: Wagons
Topic: Wagon Suspension
Replies: 68
Views: 21405

Re: Wagon Suspension

Before sending this post, I should have done something to disguise my horns and cloven hooves, but for staight RTR conversions without compensation, I use EM wheels re-gauged to P4 back-to-back gauge. You can then shunt these wagons with impunity with no risk of derailments. Don't worry about cleara...
by martin goodall
Mon Jan 11, 2010 10:30 am
Forum: Steam Locomotives
Topic: Bachmann 45xx conversion
Replies: 33
Views: 13461

Re: Bachmann 45xx conversion

I am extremely grateful for these responses to the query I raised. On the one-hand, I am re-assured to learn that it's not just me! On the other hand, these exchanges show that the business of converting Bachmann locos is not so simple and reliable as people seem to think it is. In view of the very ...
by martin goodall
Sat Jan 09, 2010 5:23 pm
Forum: Steam Locomotives
Topic: Bachmann 8750/57XX Conversion
Replies: 0
Views: 1630

Bachmann 8750/57XX Conversion

In case it may be of any interest, I converted another Bachmann 8750 chassis to P4 recently using the Ultrascale conversion set. As before, the conversion was very straightforward and this Bachmann chassis turned out to be quieter and smoother running than the first one. However, the point of this p...
by martin goodall
Sat Jan 09, 2010 4:46 pm
Forum: Steam Locomotives
Topic: Bachmann 45xx conversion
Replies: 33
Views: 13461

Re: Bachmann 45xx conversion

This is not a reply, so much as an extension to this thread. I was going to post a separate note, but saw this topic had recently been opened. I made an unsuccessful attempt last week to convert a Bachman 45XX to P4 using the Ultrascale conversion set. Testing of the Bachmann chassis before conversi...
by martin goodall
Fri Dec 11, 2009 4:25 pm
Forum: Coaches and NPCS
Topic: Close coupling of coaches
Replies: 52
Views: 26171

Re: Close coupling of coaches

Me, again (sorry)! I have just realised that in my original contribution I may inadvertently have given the impression that you just drop the replacement wheels in. You do, of course, have to remove some plastic from the insides of the bogie frames. (As regards brake-shoes, I just snip them off. Who...
by martin goodall
Fri Dec 11, 2009 2:53 pm
Forum: Coaches and NPCS
Topic: Close coupling of coaches
Replies: 52
Views: 26171

Re: Close coupling of coaches

Re the corridor connections. I forgot to mention that I use foam plastic to fill the slight gap between the vehicles, plus a bit of paper over the top to represent the tarpaulin or whatever it is that they used to use on the prototype - both items painted black and stuck to only one coach ofthe pair...
by martin goodall
Fri Dec 11, 2009 2:46 pm
Forum: Coaches and NPCS
Topic: Close coupling of coaches
Replies: 52
Views: 26171

Re: Close coupling of coaches

Regarding the query about drop-in wheel replacements, I have resorted in some cases (mainly with Hornby coaches) to using the original axles, not only becuase of the length but also because of different coning, and in order to avoid the 26mm pin-points cutting into the plastic inside the axle-box. G...
by martin goodall
Mon Dec 07, 2009 8:33 pm
Forum: Coaches and NPCS
Topic: Close coupling of coaches
Replies: 52
Views: 26171

Re: Close coupling of coaches

I have used Bachmann's own close-couplers on a three-coach set of BR Mark 1 corridor coaches with no problems at all. The main line exit from 'Burford' is on a 3-foot curve, and the carriage siding is even tighter than this. The wheelsets are a straight replacment of the Bachmann 00 wheels - no comp...
by martin goodall
Mon Oct 12, 2009 5:21 pm
Forum: Coaches and NPCS
Topic: GWR Smoking/No Smoking signs
Replies: 5
Views: 4486

Re: GWR Smoking/No Smoking signs

Very late to be replying to this, but I have only just started reading into previous posts. My understanding is that on the GWR the "No Smoking" triangles were red lettering and red border on a white background (i.e. the opposite to the BR version). Some (but not all) of the GWR "SMOK...
by martin goodall
Mon Oct 12, 2009 4:00 pm
Forum: Steam Locomotives
Topic: Running in Bachmann Pannier 8750x
Replies: 9
Views: 5122

Re: Running in Bachmann Pannier 8750x

I have a Bachmann 8750. The conversion with the Ultrascale wheelsets was very straightforward. The engine is reasonably controllable, but is a bit noisy. I have a Bachmann 2251 which is much smoother and quieter. Not sure why this is. I assume it is something to do with the motor itself rather than ...

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