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by David Catton
Fri Jun 28, 2013 7:22 am
Forum: Chassis and Suspensions
Topic: Abstruse CSB Theory
Replies: 77
Views: 36920

Re: Abstruse CSB Theory

Ivan,

I'm trying to decide if you are depraved or merely deprived.

And there we had better leave it or the serious minded folk who compose the erudite notes we read on this topic will shortly be as frustrated as you appear to be . . .

Cheers,

David C
by David Catton
Thu Jun 27, 2013 9:30 am
Forum: Chassis and Suspensions
Topic: Abstruse CSB Theory
Replies: 77
Views: 36920

Re: Abstruse CSB Theory

Hi Danny, Yes, I had seen it was returned to its original guise but I was responding to Bill B's suggestion and wondering out loud if any changes were envisaged in future whether at that stage I might be asked my opinion. The list of committee members who made the change who have since departed this...
by David Catton
Wed Jun 26, 2013 4:48 pm
Forum: Chassis and Suspensions
Topic: Abstruse CSB Theory
Replies: 77
Views: 36920

Re: Abstruse CSB Theory

Hang on - I was the Deputy Chairman who instituted THAT cup. I was less than thrilled when its purpose was changed without even the courtesy of "Would it be alright with you?" If there is ever a serious proposal to determine the rationale for awarding this trophy, I wonder if the (then) co...
by David Catton
Sun Jun 23, 2013 6:09 pm
Forum: Product Information
Topic: New Stores Item
Replies: 4
Views: 3485

Re: New Stores Item

As they say in Oz,

Emma Chizit?
by David Catton
Sun Jun 23, 2013 5:44 pm
Forum: Diesel and Electric Locomotives
Topic: Drive on six wheel motor bogies.
Replies: 39
Views: 19366

Re: Drive on six wheel motor bogies.

Yes, Jim, a 1mm diameter axle. Chris also sells inserts to fit 2mm diameter holes in wheels and provide insulation. I might repeat a plea I've made before that if anyone has a decent drawing of a 3ft diameter DMU/EMU wheel, Chris would like to receive a copy as he has promised to supply P4 wheels, p...
by David Catton
Sun Jun 23, 2013 4:19 pm
Forum: Diesel and Electric Locomotives
Topic: Drive on six wheel motor bogies.
Replies: 39
Views: 19366

Re: Drive on six wheel motor bogies.

Hi Jim (and anyone else interested!), I think this photo may have sneaked into my messasge tm_w_front.jpg The two that I have are H0 so I have no facilities for using them in that form. They both turn over silently using a 2Volt battery so I have reasonable confidence that the design is basically so...
by David Catton
Sun Jun 23, 2013 2:09 pm
Forum: Diesel and Electric Locomotives
Topic: Drive on six wheel motor bogies.
Replies: 39
Views: 19366

Re: Drive on six wheel motor bogies.

Ivan, I suppose you could always sell your horse and go see the world . . .

Now if I could get this system to accept attachments I could let you see photos that I have taken of the motor/gearbox.

Ah well - I can probably PM them if anyone is really interested.

DC
by David Catton
Thu Jun 20, 2013 5:31 pm
Forum: Diesel and Electric Locomotives
Topic: Drive on six wheel motor bogies.
Replies: 39
Views: 19366

Re: Drive on six wheel motor bogies.

I have two Rail Flyer motor/gearboxes beside me here but that's because I visited Chris Howard at his home in Canada and discussed his plans in detail. I can assure you that his intentions are very serious but he was let down comprehensively by his Chinese suppliers who could not meet the tolerances...
by David Catton
Tue May 21, 2013 9:10 pm
Forum: Steam Locomotives
Topic: BR Standard Class 4MT (Hornby)
Replies: 15
Views: 7094

Re: BR Standard Class 4MT (Hornby)

That puts your tyres at 2.5mm wide, which is a 00 dimension not P4, have Ultrascale sold you the wrong wheels or are you following Martin Goodall practice? If your driving wheels are the same its going to make the con rods and valve gear very difficult. P4 tyres are 2mm max and that is really overs...
by David Catton
Tue May 21, 2013 7:48 pm
Forum: Steam Locomotives
Topic: BR Standard Class 4MT (Hornby)
Replies: 15
Views: 7094

Re: BR Standard Class 4MT (Hornby)

The dimension between the outside frames is 22.70mm Now I have got home and run the calipers over a few wheelsets I don't see the problem here, my wheelsets are between 21.5 and 21.8 over the tyres, I have not found any over 22 mm so you should have room for a bit of sideplay as well and a 13' wb t...
by David Catton
Tue May 21, 2013 4:10 pm
Forum: Steam Locomotives
Topic: BR Standard Class 4MT (Hornby)
Replies: 15
Views: 7094

Re: BR Standard Class 4MT (Hornby)

This chassis should do the job, http://www.lanarkshiremodels.com/lanarkshire%20models%20and%20supplies%20website_096.htm but It may be sensible to see if you can find a Bachmann tender. Keith Hi, Thanks, Keith, I've been in correspondence with Dave Franks and there is a possibility of adapting the ...
by David Catton
Tue May 21, 2013 3:27 pm
Forum: Steam Locomotives
Topic: BR Standard Class 4MT (Hornby)
Replies: 15
Views: 7094

Re: BR Standard Class 4MT (Hornby)

The BR 75000 4MTs were fitted with three different tenders from new. 75000-49 had BR2, 75050 had BR2A and those allocated to the Southern Region, 75065-79, had BR1B tenders. So the wheelbase of the tender will depend on your prototype. Justin Hi, I could have been more precise in my original post -...
by David Catton
Tue May 21, 2013 8:45 am
Forum: Steam Locomotives
Topic: BR Standard Class 4MT (Hornby)
Replies: 15
Views: 7094

Re: BR Standard Class 4MT (Hornby)

Suggest commission Brassmasters to do a 7' + 7' version of their current 6'6" + 6'6" 3F easichas tender. Sprung chassis don't come any simpler. Ta, Russ, but the 75XXX tenders are 6' 6" + 6' 6" wheelbase and although I will investigate their existing tender chassis, I'm still wo...
by David Catton
Mon May 20, 2013 7:36 pm
Forum: Steam Locomotives
Topic: BR Standard Class 4MT (Hornby)
Replies: 15
Views: 7094

BR Standard Class 4MT (Hornby)

Has anyone attempted to convert this loco to P4? I have a couple (there were 5 at Bank Hall) to be converted and while the locos will have Comet replacement frames, etc., the tender looks more tricky. The outside frames are too close together to accept P4 wheels but I think they can be cut off and r...
by David Catton
Wed Jan 09, 2013 2:14 pm
Forum: Chassis and Suspensions
Topic: Clearances on lead axel
Replies: 10
Views: 5688

Re: Clearances on lead axel

I think you'll find that QUOTE prototype frames were flexible ENDQUOTE is an urban myth. The "flexibility" of steam loco frames is, I am inclined to think, one of those statements that ends up having credibility that defies logic. By the end of steam most loco building enterprises were usi...
by David Catton
Fri Sep 21, 2012 5:25 pm
Forum: Trains: Model and Prototype
Topic: Class O4 Robinson ROD 2-8-0 3547 in LNER black
Replies: 22
Views: 11248

Re: Class O4 Robinson ROD 2-8-0 3547 in LNER black

Just been advised from another group that the loco in the heading, part 31-005, is now available for £69 from Hattons. Also spotted recently elsewhere, somebody bemoaning the lack of a finescale chassis for said locomotive. I have long wanted one of these so I guess I do have an ulterior motive and...
by David Catton
Sat Apr 21, 2012 7:51 pm
Forum: Exhibitions
Topic: Scalefour North 2012
Replies: 59
Views: 23488

Re: Scalefour North 2012

Another excellent S4N so my thanks to all involved in its organisation and participation as demonstrators, lecturers, layout operators, traders and stewards - I particularly enjoyed my chats with Bill Bedford. If you have purchased any of the superb current Bachmann and Hornby (Gresley corridor stoc...
by David Catton
Thu Oct 20, 2011 6:33 pm
Forum: Track and Turnouts
Topic: Brian Morgan TOUs
Replies: 13
Views: 7764

Brian Morgan TOUs

Hi, I've been following Robin Whittle's blog on RMWeb in which he mentions using Brian Morgan TOUs (as available from the stores) on Barrow Road. Pardon my ignorance but are these suitable for non-GWR pointwork? I assume those for B and C switches may be but confirmation would be useful. More import...
by David Catton
Thu Jul 28, 2011 9:15 am
Forum: Chassis and Suspensions
Topic: Stephenson valve gear
Replies: 12
Views: 7228

Re: Stephenson valve gear

PM me and I'll provide some info on a Black 5 with BB's Stephenson valve gear.

David Catton
d.j.catton at btinternet.com

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