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by billbedford
Mon Nov 20, 2017 9:14 am
Forum: Steam Locomotives
Topic: Crab Comet conversion
Replies: 257
Views: 33148

Re: Crab Comet conversion

It's always a good idea to look a the prototype and model that. It usually save an awful lot of time from not going down the road of fantasy configurations.
by billbedford
Mon Nov 20, 2017 9:09 am
Forum: Steam Locomotives
Topic: Bachmann N class mogul p4 conversion
Replies: 24
Views: 4392

Re: Bachmann N class mogul p4 conversion

Don't you love the 'helpful' advice given about 40 year old kits where the adviser has no knowledge what so ever about what updates have been produced in the mean time.

Chocolate tea pots come to mind.
by billbedford
Sat Nov 18, 2017 10:10 am
Forum: Steam Locomotives
Topic: Crab Comet conversion
Replies: 257
Views: 33148

Re: Crab Comet conversion

The pony will bear some weight and determine the loco front ride height. The loco will have two rollers resting on the pony truck. Thus the half mm clearance between the pony wheels and the loco frame will be maintained and it will be able to swivel enough for 3 ft 6in curves. The pony wheels are s...
by billbedford
Mon Nov 13, 2017 9:02 am
Forum: Wagons
Topic: Chains for Loriots etc (Lowmacs/well wagons)
Replies: 13
Views: 1836

Re: Chains for Loriots etc (Lowmacs/well wagons)

Don't forget that rust from the chains would have stained the wooden floor, especially where the chains were linked up when the wagon was not loaded.
by billbedford
Thu Oct 26, 2017 8:59 am
Forum: Guest Book
Topic: Helan 1361 class saddleank to EM gauge
Replies: 8
Views: 1836

Re: Helan 1361 class saddleank to EM gauge

3. Axles appear to be 2mm, I am told, and (by someone who has had a detailed look) clearances are non-existent around the crossheads and slidebars. EM might be possible, thus possibly easier, but P4 could be real fun. If you like that sort of thing, which I’m not sure I do. The width of wheels sets...
by billbedford
Sun Oct 22, 2017 9:28 am
Forum: Starting in P4
Topic: Making a Start - The Peak District Midland / Monsal Dale pre 1903
Replies: 932
Views: 108877

Re: Making a Start - The Peak District Midland / Monsal Dale pre 1903

Hope someone might have a view on this.... I have turned up the following images of Midland Buffer Stops. I wondered whether the fixings for the rails which actually form the buffer cross piece are fishplates?g For lots of reasons no. For starters 1. The underside of a Fishplates is shaped to fit i...
by billbedford
Fri Oct 13, 2017 7:55 am
Forum: Steam Locomotives
Topic: A0 Gresley Pacific Prototype
Replies: 16
Views: 4285

Re: A0 Gresley Pacific Prototype

Noel wrote:That's because he told them what his objective was and what he wanted them to produce, and also got all the flak if the design was nbg.


Narr...

He just got other people to fix his mistakes. cf Thompson and the B17
by billbedford
Wed Oct 11, 2017 10:50 am
Forum: Steam Locomotives
Topic: A0 Gresley Pacific Prototype
Replies: 16
Views: 4285

Re: A0 Gresley Pacific Prototype

Ho Hum.... These drawings should be a warning to modellers not to believe everything the read in railway books. I very much doubt they are 'Gresley' drawings. They look very much like, and have the correct date, for drawings that the Society of Locomotive Engineers produced in an attempt to design p...
by billbedford
Sun Oct 08, 2017 8:49 am
Forum: Lord Colnago
Topic: Goings on at the Norfolk Wagonarium
Replies: 105
Views: 24627

Re: Goings on at the Norfolk Wagonarium

I've just been checking my sales figures and i've found that, with two or three exceptions, the resin/printed wagon have out sold the etched ones by more that two to one. So the future direction of the business looks like a no-brainer. The LNER Brake was cast in resin. I'm now working on another one...
by billbedford
Thu Oct 05, 2017 1:42 pm
Forum: Layouts and Operations
Topic: Construction of a Test Track
Replies: 611
Views: 74700

Re: Track Construction for a Test Track

Likewise the idea of laser-cut plywood bases for a turnout instead of using a template is gaining ground, and several manufacturers have introduced them. Don't folks realise that the process of removing the webs will take far longer, risking causing significant damage, than sticking timbers on a pa...
by billbedford
Thu Oct 05, 2017 9:18 am
Forum: Steam Locomotives
Topic: Crab Comet conversion
Replies: 257
Views: 33148

Re: Crab Comet conversion

Julian Roberts wrote: Not sure that the formula can ever be more than mumbo jumbo to me, a musician not mathematician!


Here we go again, someone who makes sense of dots on lines gives up when there are letters involved.....
by billbedford
Thu Oct 05, 2017 9:13 am
Forum: Layouts and Operations
Topic: Construction of a Test Track
Replies: 611
Views: 74700

Re: Track Construction for a Test Track

This may be a thick question but ...... Is there any logic to the direction chair wedges face ... ie are they always fitted with the tail away from the direction of travel. Also, does anyone know whether the Midland pre 1905 would have them on the outside of the track? They were up in from the oppo...
by billbedford
Fri Sep 29, 2017 12:10 pm
Forum: Coaches and NPCS
Topic: GWR 9' bogie subframes
Replies: 11
Views: 1859

Re: GWR 9' bogie subframes

The A31 Autotrailers didn't have American bogies, so this reply is irrelevant to the OPs question.
by billbedford
Mon Sep 25, 2017 4:53 pm
Forum: Coaches and NPCS
Topic: GWR 9' bogie subframes
Replies: 11
Views: 1859

Re: GWR 9' bogie subframes

The only problem you might have is if the American bogies are shorter over headstocks than standard ones with carrying springs above the axleboxes.
by billbedford
Mon Sep 25, 2017 7:40 am
Forum: Railway Buildings
Topic: Lampeter Station question
Replies: 19
Views: 3384

Re: Lampeter Station question

Was this end of the station ever used as a signal box?
by billbedford
Mon Sep 25, 2017 7:34 am
Forum: Coaches and NPCS
Topic: GWR 9' bogie subframes
Replies: 11
Views: 1859

Re: GWR 9' bogie subframes

What is the problem that using the current bogie centre will cause?
by billbedford
Wed Aug 30, 2017 6:12 pm
Forum: Guest Book
Topic: What's causing the wobbles on Calcutta Sidings
Replies: 33
Views: 4900

Re: What's causing the wobbles on Calcutta Sidings

That's what I'm trying to fix for P:87. I'm already preparing a new standard for free wheel movement and standard for track flatness. It now seems that Joe Brooksmith was aware of that omission in setting his own idea of the +/- 0.5 mm wheel movement allowance. Note, the otherwise mostly effective ...
by billbedford
Fri Aug 25, 2017 8:44 am
Forum: Starting in P4
Topic: Making a Start - The Peak District Midland / Monsal Dale pre 1903
Replies: 932
Views: 108877

Re: Making a Start - The Peak District Midland pre 1905

Armchair Modeller wrote:
billbedford wrote:Except the wagons are loaded with limestone not lead ore.


Sorry Bill, why do you say that?


Lead ore is much denser than coal. So standard mineral wagons loaded with ore, as in the photos, would be grossly over loaded.
by billbedford
Thu Aug 24, 2017 5:08 pm
Forum: Starting in P4
Topic: Making a Start - The Peak District Midland / Monsal Dale pre 1903
Replies: 932
Views: 108877

Re: Making a Start - The Peak District Midland pre 1905

Except the wagons are loaded with limestone not lead ore.
by billbedford
Thu Aug 24, 2017 8:51 am
Forum: Starting in P4
Topic: Making a Start - The Peak District Midland / Monsal Dale pre 1903
Replies: 932
Views: 108877

Re: Making a Start - The Peak District Midland pre 1905

There is a rotating point signal attached to that post.
by billbedford
Wed Aug 23, 2017 3:36 pm
Forum: Starting in P4
Topic: Making a Start - The Peak District Midland / Monsal Dale pre 1903
Replies: 932
Views: 108877

Re: Making a Start - The Peak District Midland pre 1905

I think the photo that is most relevant to the layout of this yard is the one with the Jubilee. The edge of the wharf has acquired a safety rail, presumably to stop loaded lorries from driving over the edge onto the siding. If you look closely, this rail stops before the van, and the section of edgi...
by billbedford
Wed Aug 23, 2017 3:07 pm
Forum: Starting in P4
Topic: Making a Start - The Peak District Midland / Monsal Dale pre 1903
Replies: 932
Views: 108877

Re: Making a Start - The Peak District Midland pre 1905

Whatever the horse is doing the 'cart' is almost certainly a trap for carrying passengers - a bit like this, with longitudinal seats down each side Disagree. The timbering on the sides looks far too rough for a trap, and the sides ave been extended upwards unlike the trap in the photo. This was lik...
by billbedford
Wed Aug 23, 2017 9:47 am
Forum: Guest Book
Topic: What's causing the wobbles on Calcutta Sidings
Replies: 33
Views: 4900

Re: What's causing the wobbles on Calcutta Sidings

I think its safe to say that the telephoto zoom is quite harsh, as Jim points out its over 40ft long, compressed, and the trains are running at full speed on hand cut baseboards and hand built track. And you could add that that Calcutta Sidings is an exhibition layout which is put together in a few...
by billbedford
Wed Aug 23, 2017 9:30 am
Forum: Steam Locomotives
Topic: Locomotive and Coach Suspension Queries and advice
Replies: 11
Views: 2249

Re: Locomotive and Coach Suspension Queries and advice

I also note that RTR coaches are running with straight wheel changeout-what are members experiences with such stock? Putting steel steel pin point axles into plastic bogie mouldings will lead to the plastic wearing. Whether this will be a problem will depend on how much running your stock will do.
by billbedford
Tue Aug 22, 2017 10:07 am
Forum: Chassis and Suspensions
Topic: Spacer width
Replies: 5
Views: 1536

Re: Spacer width

Thanks folks. Nice spreadsheet Bryan, the answer was what I expected. The slightly difficult bit is working out the sideplay required, easy enough with the versine calculation (which I think came from Russ originally) at https://www.scalefour.org/forum/viewtopic.php?f=20&t=5156&p=49405&...

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