The 10A Allocation

Yes, the man who started it all. Peter Beet.

 

Yes John, got to agree with your statement. Peter was a great man , who is sadly missed.

 

UKSteam suggests that the industrials still at 10A are:

Barclay 0-6-0F 1572/1917 “Lancaster”
Barclay 0-4-0ST 2134/1942 “WTT”
Barclay 0-4-0ST 2230/1947 “Cooke & Nuttall”
Barclay 0-4-0F 1572/1917 2268/1949 “Glaxo”
Peckett 0-4-0ST 2027/1942 “Wee Willie”
WC&I 0-6-0ST /1887 “Lindsay” (mentioned in that loco’s thread as possibly moving on)

 

Not quite correct. Black 5's and Halls are theoretically now allowed 65mph subject to individual vehicle acceptance (VAB) approval. B1's are now limited to 70mph, however, Mayflower's owner wishes to restore it's 75mph limit. Individual locos can apply for higher limits through their VAB, such as Tornado did, which remains cleared for 90mph.
The Duchess, A1 and A4's can now be cleared for 80mph if they have fixed headlamps (but not Merchant Navy's, which I found odd!), but are limited to 75mph when hauling mk 1 stock. This is even stranger as the same Mk1 stock is cleared for 90/100 mph when hauled by diesel / electric.
Confused? You bet!

 

Thanks. I was typing from memory - dangerous at the best of times!


Sent from my iPhone using Tapatalk

 

Having looked at the RSSB document - a formula for loco speeds is alluded to but not detailed but seems to be roughly
Permitted speed = wheel diameter in inches rounded up to the nearest 5mph. less 5mph for 4-6-0's ( due to proportionately more weight on drivers ? hammer blow ?). less 5 mph for two cylinders. less 5mph for pre grouping or early grouping Era locos with other factors such as piston stroke/ speed and balancing also taken into account
So A4, Duchess, Pepp A1 80mph
Scotsman, all the Large wheel 4-6-0's and 6ft 2 inch ( Bulleids, DoG) pacifics = 75mph ( an exception having been made for Britannias even though they have only 2 cylinders)
6FT 2 INCH 4-6-0's B1, Std 5 ? and SirLamiel =70
Black 5 and Hall = 65
and so on and so forth
Applying this to new builds would allude to P2 = 75, Patriot =75 ( Just) Clan =70 (unless its allowed the same dispensation as Brits = 75) V4=70 ?

 

Aaah, no need for concern there, WC locos can manage anything that's put in front of em, they're used to a varied flexible work load.

 

Makes a lot of sense if WC stands for West Country!

 

Ooops, West Coast Railway Company.

 

stands for reason, doesn't it, gauge friendly capable of a good turn of speed ( handy when theres a fast up your tail) and no matter how much you hang on the drawbar, don't sit down very often these days rail head conditions permitting of course .

 

Really surprises me that Bulleid didnt put rubber tyres on them, wouldnt work ? you say... that never stopped him

 

Point of order: That'd already been done on pre-war railcars on the GNRI (several early ones, at least some converted from conventional buses) and LMS (the Michelin contraption*) .... and worked OK in service. Jus'sayin'.

* there's still one of these serviceable in Madagascar .... hireable too, if you're ever down that way.

 

Rubber tyres ??


Paris Metro

 

It's one uploaded by pinterest[dot]com.

 

After their experiences with Tangmere, not sure WCRC would necessarily agree with you, although to be fair the rebuilt ones with the foibles ironed out don't seem too bad.

 

Wasn't that down to a cock-up with a non-spec split pin in the end? Plus, '92 did pretty well on it's mainline stint, way back when ... and did so without detuning. Roll on 21C11!

 

Not much good with track circuits, though.

 

I would have thought that would cause problems (durability if nothing else) with traditional brakes working directly on the tyres. So some other braking arrangment (disc brakes?) would likely be required.