Tornado

At £140 ish each on my car I'm getting my moneys worth so yes, thrifty. And I suggest many more feel like me, including locomotive owners.

 

About the same for me..3L 6cyl to feed...

 

Possibly not, the wheels of modern units are thinner than those on steam locos and the wheel lathes aren’t set up to deal with them. It’s why Clan Line couldn’t be dealt with at Selhurst and had to go to the Bluebell

 

I would think it would be an underfloor lathe and the tool path could easily be programmed Just a thought...

 

There’s portable tyre turning gear. NVR had some work done on one of their carriages by this method the other day. No idea of maximum wheel size though.

 

I don't think that turning as such is the problem. The issue is that there is not enough "meat on the bone" left to turn. Presumably it will run on the GCR with its wheel flats where 25mph will be less of a problem than at speed on Network Rail.

Peter

 

Just get the grinders out....

Grinding flat spots on UP 844 drivers out in the field - Mt Pleasant, TX - YouTube

 

Indeed, I am not sure where all this confusion has come from. The owners confirmed that the tyres were down to their last turn and could not be turned again and that she was going to the GCR for a bit about 2 pages back? I assume she will be going to Darlo for overhauil, by road I assume? Do they have the boiler to slot in yet or will that have to be overhauled in tandem with the bottom end? Frightening the way time flies that she has ben running now for 13 years!

As for the issue of flats, I wish Northern had a similar approach, this last week its been rare for something to go past not sounding like it was running on 50p's!

 

Especially when you consider that 60153 Flamboyant ran for only 13 years 2 months before it was sent for scrap in November 62 and 60123 H A Ivatt lasted just short of 13 years 8 months. Even the longest lived, 60145 St Mungo was only 17 when it perished. Not even old enough for a pint! Just bairns really.

 

Amazing really that Tornado has already been in service [nearly?] as long as some of the originals ever lasted.

 

Could try these...............

 

Car tyres are somewhat different, and wet road performance drops off dramatically once you get close to the wear limit, Im not so worried about running mine close to the 1.6mm in the summer, but in winter I avoid running them as low.

On our off road vehicles I don't run them below 5mm as the performance drops off so dramatically.

Chris

 

It's a different thing with railway wheel tyres, though although grip is still at the heart of it. As the tyre gets thinner, its hold on the wheel centre lessens and so the chances of it moving on the centre increases. Wheel diameter also affects things as, generally, the larger the diameter, the thicker the tyre has to be to retain its grip the wheel centre. Tyre thickness standards are largely subjective based on years of experience. I don't know what criteria is applied to Tornado but the BR document I have gives Cl.6, 7 & 8 passenger locos as 1.75" for locos with triangular section rings and 1.875" for those with flat section rings. Presumably the latter applied to the A1's. Other locos with wheels above 5 foot generally had a scrapping thickness of 1.5". This included Black 5's, except those used between Inverness and Oban, where the limit was 1.75". Presumably this was because of the heavy braking required on this road and the consequential extra heat dissipation. Similarly, tenders of locos working from Buxton, Rowsley and other sheds where they regularly worked in the Peak District were allowed a minimum tyre thickness of 2.25" before being condemned. (I wonder if this led to a lot of tender swaps?) At the other extreme, freight tank locos were allowed to get down to 1.3125" before being condemned.

 

'Tornado' reported on the back of a lorry heading northbound on the M5 at 07:45 just south of Cheltenham. 23/11/21. <BJ>

 

Arrived at GCR this afternoon

 

Is it heading to the G.C.R. by road from Bristol for something to do with the E.T.C.S. system due to be fitted prior to its overhaul? and december running before it goes for overhaul on the beginning of January 2022?

 

I thought it was because of the tyre issue discussed upthread.

 

Isn't it both?