Abellio Greater Anglia Class 755s (Regional Trains)

[dk1]

Just seen 755414 with the “I’m on test please don’t board” banners in the doorways, had there been a problem with this particular unit?

Still quite a bit of testing being done with Stadler units.

 

[170TurboFan]

Still quite a bit of testing being done with Stadler units.

Saw 755414 on the Bittern Line this morning around 0840 at Beeston Regis.

 

[BrettSy96]

Saw 755414 on the Bittern Line this morning around 0840 at Beeston Regis.

Must have had a busy morning that unit as I saw it in Lowestoft with the test banners around 11am

 

[dk1]

Saw 755414 on the Bittern Line this morning around 0840 at Beeston Regis.

5Q81 test trip by the looks of things.

 

[170TurboFan]

5Q81 test trip by the looks of things.

It was indeed

 

[Jim-s]

I assume now they are settling well a lot of fine tuning can be done and with them being well computerised what’s learned with one unit can be easily set on the rest to a point

 

[Big George]

Is anybody able to please tell me that when these units are stabled and shut down, are the tail lights able to be left on and remain lit?

 

[dk1]

Is anybody able to please tell me that when these units are stabled and shut down, are the tail lights able to be left on and remain lit?

Yes they remain on.

 

[Big George]

Yes they remain on.

Thanks

 

[Jim-s]

I took a trip on 755330 today for the first outing in about a year,
they do seem to make a short trip into a nice relaxed journey, only along the sudbury branch but it’s still nice to be able to sit in air conditioning on, charge the phone, plan journey on the free Wi-fi resting on a table, very different experience to the 153s

Noticed a gentleman in stadler hi viz with the driver maybe some monitoring or testing?
He also seemed to acknowledge my daughter shouting bye basil to the unit as we left

 

[Abbo]

Mention of a 755/3 with their well chronicled acceleration on a LST - NRW service has drawn the interesting question of how the performance of the 755 would compare with a two car 309. Are any of our more seneior driver colleagues able to provide an opinion ?

 

[306024]

Mention of a 755/3 with their well chronicled acceleration on a LST - NRW service has drawn the interesting question of how the performance of the 755 would compare with a two car 309. Are any of our more senior driver colleagues able to provide an opinion ?

You may struggle to get a first hand answer there Abbo as it’s around 40 years since a 2 car 309 existed. The only depots that would have worked both forms of traction are Colchester, and for a few years Ipswich. Many of the senior hands there have retired in recent years. A 3 car 755 on electric power really is something to experience though.

 

[Abbo]

You may struggle to get a first hand answer there Abbo as it’s around 40 years since a 2 car 309 existed. The only depots that would have worked both forms of traction are Colchester, and for a few years Ipswich. Many of the senior hands there have retired in recent years. A 3 car 755 on electric power really is something to experience though.

Well I never was it really that long ago !

The question could be easier in comparing a 755/4 with a four car 309. Both are fast,

 

[AM9]

Well I never was it really that long ago !

The question could be easier in comparing a 755/4 with a four car 309. Both are fast,

No, the 309s, whilst among the best performers anywhere in their day, had fairly modest p:w ratios (4-car about 5kW/tomnne, 2-car about 8.5 kW/tonne). The motors were conventional GEC series wound DC types, not even as powerful as the motors in the class 319s.
By comparison, the 3-car class 755s have 2600kW of power which is over one and a half of the power of a 2x4-car consist of class 309s

 

[Big George]

Looking at the miles per technical incidents on the 755's, the /3's seem considerably better on the figures than the /4's....

What's the difference and issues please?

 

[Roger B]

Looking at the miles per technical incidents on the 755's, the /3's seem considerably better on the figures than the /4's....

What's the difference and issues please?

Could it be as simple as there are more things to to wrong on the 4 car sets - another set of engines, transmission, doors, etc?

 

[dk1]

Looking at the miles per technical incidents on the 755's, the /3's seem considerably better on the figures than the /4's....

What's the difference and issues please?

That's strange as the 3-cars have been slightly less reliable then the 4s from the start.

 

[Railperf]

That's strange as the 3-cars have been slightly less reliable then the 4s from the start.

Modern Railways stating 755/4s achieved 22,388 miles per technical incident compared to 6752 miles for a 755/3. So the 755/4s seemingly way more reliable?

 

[dk1]

Modern Railways stating 755/4s achieved 22,388 miles per technical incident compared to 6752 miles for a 755/3. So the 755/4s seemingly way more reliable?

This is why I was so confused. It’s pretty obvious the 755/4 would be more reliable especially in diesel mode. Not read my June MR yet.

 

[Railperf]

This is why I was so confused. It’s pretty obvious the 755/4 would be more reliable especially in diesel mode. Not read my June MR yet.

I never had trouble with 755/4s. But twice had engine shutdown on 755/3. Sitting right behind drivers can so I could hear the alarms going off in the cab. Resolved in 10 to 15 min

 

[43096]

Modern Railways stating 755/4s achieved 22,388 miles per technical incident compared to 6752 miles for a 755/3. So the 755/4s seemingly way more reliable?

Latest MR, hot off the press says the MTIN MAA is 6,029 (last period 24,145) for the 755/3s and 6,214 (last period 8,982) for the 755/4s.

 

[dk1]

I never had trouble with 755/4s. But twice had engine shutdown on 755/3. Sitting right behind drivers can so I could hear the alarms going off in the cab. Resolved in 10 to 15 min

If an engine shuts down on a 755/4 it’s going to have no effect (several running round on 3 legs anyway) and to lose 2 it’s going to get home with a little delay. Lose an engine on a 755/3 & you’re in trouble & it certainly ain’t going to remain in traffic.

 

[Railperf]

Latest MR, hot off the press says the MTIN MAA is 6,029 (last period 24,145) for the 755/3s and 6,214 (last period 8,982) for the 755/4s.

The period 12 figures are 22,251 for the 755/4 and 6,752 for the 755/3s. I'm assumin g that is over a four week period - where the 755/4s are averaging 9368 miles per unit, while the 755/3s are averaging 7271 miles per unit. So the 755/4's doing more mileage per unit and yet still seemingly more reliable. Eight technical incidents for the 755/4s and 14 for the 755/3's.

If an engine shuts down on a 755/4 it’s going to have no effect (several running round on 3 legs anyway) and to lose 2 it’s going to get home with a little delay. Lose an engine on a 755/3 & you’re in trouble & it certainly ain’t going to remain in traffic.

I'd hate to experience a 755/3 on 1 engine!! They are slow enough on just the two engines - in spite of being slightly faster than the outgoing 170's and 156's.

 

[Peter Mugridge]

It looks like 755 403 is now repaired; it's shown up in the TOPS thread this morning...

Urgent TOPS Requests

Looks like being 60029. Ta muchly.

www.railforums.co.uk

 

[Shwam3]

2S03 this morning is showing as 755406 for me. 403 was very much in pieces on 24 road in crown point when I saw it last week.

 

[Peter Mugridge]

2S03 this morning is showing as 755406 for me. 403 was very much in pieces on 24 road in crown point when I saw it last week.

Ah... so it's been entered wrongly in the system.

Drat.

It's one of the ones I need ( and quite a few other people do as well! )... does it have an "expected OK" date yet?

 

[TT-ONR-NRN]

Ah... so it's been entered wrongly in the system.

Drat.

It's one of the ones I need ( and quite a few other people do as well! )... does it have an "expected OK" date yet?

Indeed I need it, one of only six left for the class - what is wrong with it?

 

[TheEdge]

403 is still missing pieces of its face.

Even though I drive them I've still not driven 403 (or 422 apparently).

 

[170TurboFan]

403 is still missing pieces of its face.

Even though I drive them I've still not driven 403 (or 422 apparently).

I saw 406 earlier on in its diagram at Oulton Broad, I was shocked to see 403 when I asked this morning knowing how knackered it is, last saw and travelled on 403 Summer 2020.

 

[BrettSy96]

For the first time today I noticed on the info screen on one of these units it said a particular coach was ‘full’. I’ve been on busier services in the past and the screens still showed green empty seats in each carriage. Is this a recent change or have I just been oblivious?