Tornado

Did the V3s and V4s use the same design of cylinder monobloc casting? hat really would represent a saving.

 

I believe they both have a monobloc casting, but don't know if it is the same one. Once upon a time I would have said its quite feasible to 'make it the same'
and redesign to suit, but given the proposed P2 Fabricated/cast composite type monoblock on one hand and poly or sand printed patterns straight from CAD on the other i.m not sure that its that important anymore

 

With mk3's being about 18 feet longer than the shortest of the mk1's used at Heritage lines, wouldn't gauging be a potential issue if the new set were to visit heritage lines with curved platforms ? Did BR anticipate this for their own stations and make the mk3 slightly narrower at platform level ?

 

Why would the A1 people want to visit heritage lines with them? On the other hand, IC125s have done so IIRC so maybe Mk.3s do fit on some heritage lines.

 

The SVR have hosted a Chiltern loco hauled set DVT, MK3 rake, diesel loco all the way to Bridgnorth.

When Tornado visited for Pacific Power it arrived on a railtour positioning move. The train was Mk1s but could just as easily been Mk3s. And yes I appreciate that as soon as it arrived it was off again for a Thunderbird job.

 

Point taken re 60163 but if they're going for 90mph I wonder how many heritage lines would be on suitable 90mph routes.

 

TBEL?

 

A coach is a coach. Mark 1s can do 90 or 100mph on the mainline depending on the bogies fitted and yet they only do 25mph on a heritage line. So mark 3s aren't too much different really.

 

It is not the start and finish of a route which get a benefit but the section in between. For example finding a path out of Euston or the Cross or Paddington post sparks would be just that little bit easier although the link to the preserved railway may be slow. When tornado visited the final stretch was following a stopping service.

 

A thought which just occurred to me going back to the coach livery debate - as MkIIIs are not heritage stock aren't they going to have to have different coloured doors to comply with DDA?

 

Reading the press release, they have said the ORR are happy to give a derogation on that as there will be at least one steward for every coach and assistance can be given to the visually impaired when boarding.

 

They aren't making any more of them - define "heritage stock"...!

 

I agree. Anything 40 years old could be described as heritage.

What is amazing is that a 40 year old design is still being used in front line services and still running at 125mph.

 

And don't they do it well! The ride and comfort of Mk3s make some more 'modern' units/stock seem draughty, noisy and rough - best decision the old BR ever made.

Foxy

 

Is it the same design as used on the V2 also instead of building an V3, OR V4, why not ask the NRM, can we look after Green Arrrow?

 

According to the LNER Encyclopedia, same monoblock as a V2.

 

interesting so whats the additional costs if there is a pattern already made and your already having one, or even 2 cast ? i always thought the biggest cost was in making the pattern .

 

Pattern costs have decreased drastically in recent years with modern techniques such as CNC procuced polystyrene patterns, 3D printing and the like. I like the idea of fitting Green Arrow with a new unit and the NRM displaying the life expired original as an educational exhibit, along with a sample of whichever type of pattern is used to produce the new one (or two) and an explanation of the old and new method of production, whilst enabling this fine machine to return to the network, now that is the real bonus...

 

That's not quite what it says:

I.e. it is also a monobloc casting but it's not necessarily the exact same monobloc, whereas the pony truck is the same.

If that's the case with the pony truck, then the type used on the P2 may also be used on the V4 and V2 as the trust have utilised the revised V2 pony truck design on the P2 I believe.

The V3 and V4 might share cylinders potentially. Would make sense to standise between the two to an extent.

 

The chance for "Green Arrow" may well have passed as the NRM are not planning any further overhauls; the price to be paid for "Scotsman"?

Cheers,

Alan