Model Railway Forum banner
1 - 20 of 30 Posts

·
Registered
Joined
·
110 Posts
Discussion Starter · #1 ·
Just had a thought today... I saw a pendolino being pulled by a diesil loco, 37 i think it was... does the pendolino tilt when coupled to the class 37 or is the tilt turned off?
Many thanks
 

·
Registered
Joined
·
4,497 Posts
I think the tilt would be turned off. Obviously there was a problem with the unit so power may not have been available to operate the tilt. In any case being hauled the speed would be lower as well and the tilt less important.
Regards,
John Webb
 

·
Registered
Joined
·
436 Posts
I didn't know 37's could pull Pendolinos, I thought that job was for 57's
 

·
Premium Member
Joined
·
3,614 Posts
no it dosent tilt when its coupled.
The ETH rating on the loco is massive on the 57, but still only just enough to provide power for the pendo. there isnt enough left for the tilt. also its limited to (i believe) 75?mph and there really isnt much point in tilting at that speed.

Whenever i have travelled in one while its coupled it has been painfully slow.

Peter
 

·
Registered
Joined
·
110 Posts
Discussion Starter · #6 ·
Thanks Peter, having never been one which has a 57 at the front I wouldnt know, many thanks. Will try to void using if possible as I am only used to using the fast tilting ones.

Cheers
 

·
Registered
Joined
·
763 Posts
If you fancy a drag then the line to Holyhead is served by Pendolinos pulled by class 57's due to some thoughtful git forgetting to electrify the North Wales line. Still baffles me why they don't just run HST's instead, got to be less hassle than the hit and miss dellners on the 57's.
 

·
Registered
Joined
·
110 Posts
Discussion Starter · #8 ·
Or why diddn't they just make it more easy and make it so the pendolinos can run of both diesil and electric overheads? I think eurostars do this as I'm sure they run off electrcic though I have seen pics on the net of them on lines non electric?
 

·
Registered
Joined
·
267 Posts
Eurostars are fitted with about 3 different electrivcal systems - 1,500V DC (Overhead) for working in Brussles, 750V DC (Third Rail) for the southern region (Soon to be removed) and the standard 25,000V AC (Overhead) which it uses for most of the time. There are occassion outings with 37s on the front but as far as i know this has never occured on a passenger service and now with the switch to St Pancras the 37s have gone to DRS so this will probably never happen.

Speaking to the Virgin staff at the NRM when the cab-it event was on this year the max speed for the speed the 57 + pendo is 95mph
 

·
No Longer Active.
Joined
·
13,319 Posts
QUOTE (Jennings @ 19 Nov 2007, 06:57) <{POST_SNAPBACK}>Eurostars are fitted with about 3 different electrivcal systems - 1,500V DC (Overhead) for working in Brussles, 750V DC (Third Rail) for the southern region (Soon to be removed) and the standard 25,000V AC (Overhead) which it uses for most of the time. There are occassion outings with 37s on the front but as far as i know this has never occured on a passenger service and now with the switch to St Pancras the 37s have gone to DRS so this will probably never happen.

If the 750v DC equipment is removed how will the sets get to & from servicing facilities, or have these arrangements been changed as well.

As an aside I wish the media would get it right & stop calling the Javalins (spelling ?) Bullets.
 

·
Registered
Joined
·
763 Posts
Eurostars are fitted with 3 or 4 different voltage systems - 25 kV AC , 3.3kV AC [dbclass50 will correct me as to Belgian voltage if I have the figures wrong] 750V DC 3rd rail , and on some units 1500V DC for parts of France

With CTRL open in full , Eurostar have now moved to their new depot at Temple Mills near Stratford (on the site of the old marshalling yard) and North Pole depot has closed . Hence there should be direct 25kV access to the new depot.

There has been speculation that the 3rd rail equipment might be removed from Eurostars as a redundant complication, but I'm not sure this has actually been decided
 

·
Administrator
Joined
·
9,845 Posts
QUOTE North Pole depot has closed

That's the one just outside Paddington?

David
 

·
Registered
Joined
·
697 Posts
QUOTE (Ravenser @ 19 Nov 2007, 23:01) <{POST_SNAPBACK}>Opposite Old Oak Common actually , but that's the one. "Wanted : new owner for slightly used modern depot"
EWS are supposedly moving across there from the old Old Oak Common depot.

The DC equipment is being removed from the Eurostars.

Breaston. Eurostars don't have diesel power on board.

Regarding Pendolinos (and Super Voyagers). They don't just tilt willy-nilly.
From what I can gather:-
Tilting has to be enabled in the on-board control system.
It only operates on curves that are fitted for tilting. Track sited Balaises communicate and instruct the on-board system.
The entire train is programmed so that each vehicle tilts individually in turn and according to the profile calculated before it enters the curve.
Tilting only occurs above (I think) 110 m.p.h. where allowed above.

 

·
Registered
Joined
·
1,630 Posts
QUOTE (Oakydoke @ 20 Nov 2007, 13:35) <{POST_SNAPBACK}>The entire train is programmed so that each vehicle tilts individually in turn and according to the profile calculated before it enters the curve.

Not sure this is true of the Pendolino/Voyager. I think they detect the start of the curve at the front of the train and (subject to all the other conditions you mention) initiate tilt accordingly. Some Japanese narrow-gauge EMUs have tilt and I believe these have details in an on-board memory of all the curves in the route so knowing their position they can select the correct amount of tilt.
 

·
Chief mouser
Joined
·
11,775 Posts
A tangent I know but returning briefly to Eurostars and EPS. will they be keeping their 73's?

Regards
 

·
Registered
Joined
·
267 Posts
Nope - 1 i thought was due to go to Barry Islands (Cardiff) and the other was going to North Greenwich (For that RailSchool thing).
 

·
Premium Member
Joined
·
3,614 Posts
the pendo's and voygers do communicate with track transponders for tilting information. its a system called TASS. now if only i could remember what TASS stood for....

I am not sure about EWS moving to north pole deopt. the problem is that the track immediatly outside the depot is on the fast line and its the only thing on that side of the GW main line. so a freight loco wishing to get from north pole to old oak common would have to cross 6? very busy tracks.

Peter
 

·
Registered
Joined
·
1,630 Posts
QUOTE (pedromorgan @ 21 Nov 2007, 08:02) <{POST_SNAPBACK}>the pendo's and voygers do communicate with track transponders for tilting information. its a system called TASS. now if only i could remember what TASS stood for....

Tilt Authorisation and Speed Supervision

It has two functions:
(1) Instructing the trainborne equipment whether tilt is permitted on a particular section. If no TASS equipment is detected then tilt is disabled.
(2) Supervising the speed of tilting trains so as not to exceed the enhanced permitted speed, or the normal permitted speed if for some reason the train is unable to tilt. It does not enforce compliance with signals just with speed restrictions.

TASS does not pass any information to the train about the actual curves ahead, so the train still has to work out for itself how much tilt to apply when it reaches a curve. Also it does not prevent non-tilting trains trying to exceed the normal permitted speed, as these trains do not carry TASS receivers.
 
1 - 20 of 30 Posts
Top