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DT
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I will be using this in a forthcoming review. I must say that it is a fantastic model. Runs very well and is solid and strong. Perfect for hauling rolling stock around any layout.

As I don't know much about these Class 20 locos. Can anyone please tell me something about them? There are versions with disks and versions with head-boxes. When doubled-up, were the disk locos and head box locos ever mixed? Were they from different periods? Were head-boxes added to the disk versions to upgrade them?
 

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QUOTE (Doug @ 24 May 2006, 15:06) <{POST_SNAPBACK}>I will be using this in a forthcoming review. I must say that it is a fantastic model. Runs very well and is solid and strong. Perfect for hauling rolling stock around any layout.

As I don't know much about these Class 20 locos. Can anyone please tell me something about them? There are versions with disks and versions with head-boxes. When doubled-up, were the disk locos and head box locos ever mixed? Were they from different periods? Were head-boxes added to the disk versions to upgrade them?

Some good questions Doug. I'll attempt to answer them in order of ease, but I admit I dont know all the answers.

Q. Were head-boxes added to the disk versions to upgrade them?
A. No they were assembled like that, in different batches.

Q. Were they from different periods?
A. The 1st batch assembled 1957-1958 (D8000-D8128). Discs.
The 2nd batch assembled 1965-1967 (D8129-D8199) Headcode
The 3rd batch assembled 1965-1967 (D8300-D8329) Headcode

Q. When doubled-up, were the disk locos and head box locos ever mixed?
A. Yes, but this mostly depended on M.P.D. allocations, which were possibly done in batches. You'd need to get someone with an old Locoshed/Depot Allocation book to verify this. Try this:-
http://en.wikipedia.org/wiki/Image:20050%2...erby_-_1975.jpg
 

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>You'd need to get someone with an old Locoshed/Depot
I have some locoshed books from the late 70s, if you are interested in pursuing this avenue.

David
 

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I have a BR blue one and it is an excellant runner you wouldnt know it was their and It never derails even on the most foul trackwork
As for some information while they near always ran in pairs in the Blue period I have seen a picture of 2 class 20s running a sprinter replacement service consisting of 2 mk1 Sks and a Bg aswell as the 2 class 20s
 

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In the reprinted (~late 70s) summer edition of Ian Allen's Locomotve & Locoshed book 1959, D8046 is listed but there is no shed allocation information which suggests that it was built during that year.
The allocations for D8000 to D8019 are either 5B (Crewe South) or 1D (Devons Road)

That's the only "green" information I have.

In the 1973 edition, all 3 are still on the list but have been renumbered in the 20xxx series.
They are still in the list in the 1979 edition - none were fitted with dual brakes.

The shed allocations in the 70s were as follows:-

1976, 1977 20 046 - ED; 20 113 - TO; 20 134 - TO
1979 20 046 - ED; 20 113 - TO; 20 134 - ER

ED = Eastfield (Glasgow - 65A)
TO = Toton (16A)
ER = Typo / misprint???

David
 

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be carefull which one you review as they have changed since their introduction. the one in the picture is the origional. with the opening windows and the poorer of the bogies. also the cab shape was wrong. this was the last of (or at least i hope it was the last!) of bachmann's diesels that were simply not up to scratch. there was nothing really wrong with them but hornby had raised the bar buy at least 4 feet and the 20 the 37 the deltic and the peak just didnt cut it. they have all had some work (with the exception of the deltic?) and in the case of the 37 it has already been compleatly retooled and is having a second retool later this year.

on the 20 the sand pipes were quite different on the later versions. unfortunatly i dont have one of the later ones so i cant give you a comparison picture. but if your doing a review you will want to review one of the latest ones or it will already be out of date.

Peter
 

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I'm considering buying a class 20 in early BR period and convert it to DCC operation.
Does anyone know if there is a non powered RTR version available for double heading

I know I could use two power locos running as a consist but I would prefer a non powered loco as this leaves more dcc track power available to run other trains.
 

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QUOTE (pedromorgan @ 25 May 2006, 14:42) <{POST_SNAPBACK}>be carefull which one you review as they have changed since their introduction. the one in the picture is the origional. with the opening windows and the poorer of the bogies. also the cab shape was wrong. this was the last of (or at least i hope it was the last!) of bachmann's diesels that were simply not up to scratch. there was nothing really wrong with them but hornby had raised the bar buy at least 4 feet and the 20 the 37 the deltic and the peak just didnt cut it. they have all had some work (with the exception of the deltic?) and in the case of the 37 it has already been compleatly retooled and is having a second retool later this year.

on the 20 the sand pipes were quite different on the later versions. unfortunatly i dont have one of the later ones so i cant give you a comparison picture. but if your doing a review you will want to review one of the latest ones or it will already be out of date.

Peter

I've bought the the Bachmann 25, 37, 40, Warship and Deltic locos. I was impressed with them all especially the 25 class which is a weighty little beast at least 200grams heavier than the nearest steam loco. Fitting a DCC decoder was reasonably easybut I did notice that Bachmann had added extra capacitors across the motors in the 25 and the Warship. Why? I don't know but it meant completely disassembling the model to remove them. After reassembly I removed the chokes and capacitors off the PC board and soldered a pair of jumpers in place of the chokes. I also did this on the other models. I fitted TCS T-1 decoders which perform reasonably well but will be replaced by suitable sound decoders when they come along. A minor curiosity with Bachmann diesels is that 6 axle units only have 4 driven axles the rear ones are just idlers. Seems odd when everybody else that makes a six axle diesel drives all the axles. They must have used a cut price draughtsman when the designed the motor bogies. Finish on all the models is good and the detail on the 25, 37 and Deltic is really good. The Warship suffers abit being an older model that dates back to Mainline ? days but it to has an impressive weight and an excellent hauling capacity. Another oddity with the diesels is the use of plastic chassis. I would have thought by now that they have intoduced metal chassis which would reduce the size of the weight to allow easier fitment of sound decoders. The 37 is proably the best of the Bachmann diesels with nice crisp detail and paint and is a very smooth runner. I'm now looking forward to the the sound equipped Deltic and 20 class coming out.

Ozzie21
 

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>Bachmann had added extra capacitors across the motors in the 25 and the Warship. Why?
They must have been having problems with Radio Frequency Interference and couldn't get it through the tests.

David
 

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"I'm planning on having the 3 locos that I mentioned above in the review. Old, new and soon to be released... "
great i look forward to reading it. i have one of the early ones. its "ok"

"Finish on all the models is good and the detail on the 25, 37 and Deltic is really good. The Warship suffers abit being an older model that dates back to Mainline ? days but it to has an impressive weight and an excellent hauling capacity. Another oddity with the diesels is the use of plastic chassis. I would have thought by now that they have intoduced metal chassis which would reduce the size of the weight to allow easier fitment of sound decoders. "

the paint finish i agree is pretty good.
the class 25 detail is good but they have come in for some criticism for changing a few things. the plastic handrails are now just wire. while these are stronger they dont look as good. the deltic is the right shape but the nose end detail looks too chunky. also the panel lines should be scribed not painted. i have scratch built new lamp irons and they look much better.
the warship is a brilliant model concireding its age. (although mine is in for repair at the moment. one of the worms has cracked from end to end and i have noticed that the other one has also started to fail. has anyone else had this problem?) but when its running it is one of the best locos i have. and yes it dates back to mainline although it had a new chassis and various modifications when it was introduced to the "blue ribband" range. in wirting reviews i would concider them to be different models.

"The 37 is proably the best of the Bachmann diesels with nice crisp detail and paint and is a very smooth runner. I'm now looking forward to the the sound equipped Deltic and 20 class coming out."
oah dear!! which 37 do you have? if it is first EWS version they did (i have the same loco) then it is a good runner but accuracy wise it is pretty dredfull. the body sides are compleatly the wrong shape both at the top and bottom. that is why the 37 is being retooled.

the bachmann class 66 has 6 axel drive and the retooled 37 will also have the 6 axel drive.

i know this looks like i am just panning the loco's but 5 years ago i would have hailed them as the best loco's around but at the same time hornby were develpoing the class 50 and that is head and sholders above the bachmanns. bachmann did things with their diesels that they simply cant get away with these days. like the panels on the deltic. painted lines are pretty shoddy by todays standards.

I was supprised when hornby didnt announce a 66 this year. it is going to be the biggest class of loco in the UK for the next 25-30 years. can Hornby afford NOT to have a share of that market? i think its when not if.

Peter
 

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QUOTE Bachmann had added extra capacitors across the motors in the 25 and the Warship. Why?
They must have been having problems with Radio Frequency Interference and couldn't get it through the tests.

I thought those things just multiplied by themselves, judging by the number that Bachmann add, someone must be getting a kick out of adding them. "Possibly a control freek
" I have a couple of them good runners, they look great tugging my Roco-Cleans around the layout. Doug if your intrested in the history Model Rail did a review when the model was introduced, that would be 24 months ago +/- If I come across it I'll let you know.
 

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Whatever may be said about external detail etc, and I am not qualified to post any opinion on that, it is just great to see a nice, hefty, double flywheel setup inside the cutaway picture. Extra weight AND extra inertia/momentum - excellent.
 

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DT
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Discussion Starter · #16 ·
QUOTE (Rail-Rider @ 30 May 2006, 14:14) <{POST_SNAPBACK}>Whatever may be said about external detail etc, and I am not qualified to post any opinion on that, it is just great to see a nice, hefty, double flywheel setup inside the cutaway picture. Extra weight AND extra inertia/momentum - excellent.


Yes, this is what lacks in many other models including most steam locos. I'm keen to see what modifications are to be made to get the sound decoders into that space.

This Class 20 is quite an ugly little brute. It had the same stubby attractiveness that enticed me towards the Q1 Class steam locos. Doubled up, nose-to-nose, these locos would look great on the layout.
 

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I have a Bachmann Class 20, which runs beautifully, except when running nose first and taking the spur off a Peco 100 large-radius curved point. Virtually every time it derails, but never when running cab first. Anyone else have this problem and maybe a solution?
 

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QUOTE (cooperkenilworth @ 10 Jun 2006, 21:01) <{POST_SNAPBACK}>I have a Bachmann Class 20, which runs beautifully, except when running nose first and taking the spur off a Peco 100 large-radius curved point. Virtually every time it derails, but never when running cab first. Anyone else have this problem and maybe a solution?

First thing to check IMHO is alway the back to back - invariably this is usually the problem.

regards
Brian
 
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