Search found 12 matches

by rjh
Mon Jun 06, 2016 10:03 am
Forum: Electrics
Topic: short circuit
Replies: 2
Views: 1383

Re: short circuit

How to rectify a short indicated by Gaugemaster Combi when switching from neutral to F or R positions, please Does this occur when the unit is disconnected from the layout? If so, I strongly recommend that you contact Gaugemaster directly. They have a lifetime guarantee, see http://www.gaugemaster....
by rjh
Sun May 22, 2016 1:14 am
Forum: South London (SLAG)
Topic: expoEM 2016
Replies: 5
Views: 2323

Re: expoEM 2016

Richard, John, I'm glad you enjoyed seeing Metropolitan Junction in the flesh and thank you John for posting your photo of "Lord Howe". The warm reception from many of the expoEM visitors made the effort of getting it there, putting all the bits together and actually running trains so very...
by rjh
Mon Dec 13, 2010 6:36 pm
Forum: Diesel and Electric Locomotives
Topic: Branchlines Site
Replies: 11
Views: 7933

Re: Branchlines Site

Hello, Yes, it's an odd way to prmot your products, isn't it? I did a Find on the home page on: wheels and eventually located: -------------------------------------------- Friday, February 01, 2008 Catalogue PDF Files All our Catalogues and some other useful Information Sheets are available as PDF f...
by rjh
Sun Dec 12, 2010 10:02 pm
Forum: Diesel and Electric Locomotives
Topic: P4ing the 'new generation' HSTs
Replies: 4
Views: 2828

Re: P4ing the 'new generation' HSTs

Hello, Ultrascale appear to offer something suitable: Class 43 (HST) http://www.therailwaycentre.com/New%20Loco%20Tech%20Data/Class43HST.html Wheel diameter: 3ft 4in (1.02m) 1002 / 76.2 = 13.15mm http://www.ultrascale.co.uk/ddw0001.php Disc diesel wheels 3'3 1/2" Disc diesel 'Warship' All wheel...
by rjh
Fri Dec 10, 2010 6:54 pm
Forum: Layouts and Operations
Topic: Building a layout - Model Railway Constructor series
Replies: 31
Views: 9773

Re: Building a layout - Model Railway Constructor series

Hello again, Further to my posting above, Bob Essery dates the dialogue with CJF to Autumn 1973. Heckmondwike eventually featured as "Railway of the month" in the April 1976 issue of "Railway Modeller", introduced by the CJF editorial about where P4 has now got to. It's clear fro...
by rjh
Fri Dec 10, 2010 5:43 pm
Forum: Layouts and Operations
Topic: Building a layout - Model Railway Constructor series
Replies: 31
Views: 9773

Re: Building a layout - Model Railway Constructor series

In addition to the red articles above, the archive is also missing the reference to/copy of the CJ Freezer editorial which started the whole thing off . So if you have one ... I will contact Bob and see if he has a copy. Alan Hello, Bob Essery wrote about the details of the "CJF challenge"...
by rjh
Tue Dec 07, 2010 6:00 pm
Forum: Guest Book
Topic: EM wheels on P4 track
Replies: 82
Views: 52076

Re: EM wheels on P4 track

Experience tends to bear that out. A member of our group reports having purchased an EM Black Beetle motor bogie, intending to put P4 wheels on it. However, as an experiment he set the back to back on the EM wheels to P4, following which he found that it ran happily through all his P4 pointwork (wh...
by rjh
Sun Dec 05, 2010 10:26 pm
Forum: Guest Book
Topic: EM wheels on P4 track
Replies: 82
Views: 52076

Re: EM wheels on P4 track

Russ - You may have hit on the answer. I was quoting a 0.65mm flange from dimensions given by Iain Rice, but I had previously been under the impression that the EF dimension of EM-profile wheels was in fact 0.5mm or thereabouts, which would give me a theoretical running clearance of 0.13mm. As you ...
by rjh
Sun Jan 24, 2010 5:29 pm
Forum: Guest Book
Topic: EM wheels on P4 track
Replies: 82
Views: 52076

Re: EM wheels on P4 track

David, One dictionary defines heresy as: 1. a. An opinion or a doctrine at variance with established religious beliefs, .. b. Adherence to such dissenting opinion or doctrine. 2. a. A controversial or unorthodox opinion or doctrine, as in politics, philosophy, or science. b. Adherence to such contro...
by rjh
Sun Jan 24, 2010 12:29 pm
Forum: Guest Book
Topic: EM wheels on P4 track
Replies: 82
Views: 52076

Re: EM wheels on P4 track

Dt, It's not theory, it's the simple fundemental arithmetic of how wheelsets interact with pointwork, just read: http://www.clag.org.uk/p4standards.html You'll note that the Condition 2 text further states: " (In practice, because of the shape of the root of the flange, the likelihood of wheel ...
by rjh
Sat Jan 23, 2010 11:09 pm
Forum: Wagons
Topic: Wagon Suspension
Replies: 68
Views: 15230

Re: Wagon Suspension

Flange depth (0.25mm deeper) is not the only difference; the flange width at the flange root is also wider (by 0.1mm i.e. 0.5mm for EM compared with 0.4mm for P4), which is well within the flangeway clearance of track built to P4 standards. Hello again Martin, Furher thoughts... The (EM, 0.5mm max)...
by rjh
Sat Jan 23, 2010 9:21 pm
Forum: Wagons
Topic: Wagon Suspension
Replies: 68
Views: 15230

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...

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