Roundhouse Engineering “Merseysider”.

casey jones snr

Registered
20 Apr 2010
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Charnwood Forest Railway. Rothley. Leics.
The CFR has taken delivery of two new locomotives.
They are both “Merseysider” class locomotives named Queen of the Hills and Mountaineer.
E4F5A456-5B0D-4B77-9E2C-FB5ED7FE463D.jpeg 01255AF7-0680-4F10-B271-420D88ACB8DA.jpeg 198C94FB-7D61-482B-B6E8-B6361A7CEB79.jpeg 3CB07B21-6916-4F64-BB9C-EF3516409E70.jpeg E4F5A456-5B0D-4B77-9E2C-FB5ED7FE463D.jpeg 01255AF7-0680-4F10-B271-420D88ACB8DA.jpeg 198C94FB-7D61-482B-B6E8-B6361A7CEB79.jpeg 3CB07B21-6916-4F64-BB9C-EF3516409E70.jpeg 01255AF7-0680-4F10-B271-420D88ACB8DA.jpeg 198C94FB-7D61-482B-B6E8-B6361A7CEB79.jpeg 3CB07B21-6916-4F64-BB9C-EF3516409E70.jpeg
 
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Rhinochugger

Retired Oik
27 Oct 2009
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North West Norfolk
They look good, and the twin buffers suit them.

One thing I found slightly strange when I was doing some research for parts following my blue and yellow dismal's latest failure, and that is that on some of these models, Roundhouse use a 3-pole motor. Now there may be good technical reasons, but I had always assumed that 5- or 7-pole motors would have more, smoother power :think::think::think::think::think:

Sure, we don't all do a lot of shunting and maneuvering but I thought the benefits were more than just a smooth take-off.
 

stockers

Trains, aircraft, models, walking, beer, travel
24 Oct 2009
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Nr. Ashford, Kent. England.
The biggest single difference between different electric motors is how well they are made.
Once you get to a quality motor with good bearings, lots of wire in the windings, balance, magnets etc. a three pole motor will usually run faster than a multi pole motor - because there are less electrical changes in the armature. It may however start and run less smoothly.
A multi pole motor has to have smaller windings on each pole - otherwise the motor would need to grow in size considerably - this tends to limit the torque to about the same whatever the number of poles.
Power is torque x speed. Torque remains fairly consistant and a three pole motor can run faster - more power.
On to all this you add gears and drive wheels - all of which can make a huge difference to the overall performance. As a three pole motor may be running faster, it needs lower gearing for our use - which increases power - again.
But, at the end of the day, quality will out perform poles.
 

Rhinochugger

Retired Oik
27 Oct 2009
29,570
3,548
North West Norfolk
The biggest single difference between different electric motors is how well they are made.
Once you get to a quality motor with good bearings, lots of wire in the windings, balance, magnets etc. a three pole motor will usually run faster than a multi pole motor - because there are less electrical changes in the armature. It may however start and run less smoothly.
A multi pole motor has to have smaller windings on each pole - otherwise the motor would need to grow in size considerably - this tends to limit the torque to about the same whatever the number of poles.
Power is torque x speed. Torque remains fairly consistant and a three pole motor can run faster - more power.
On to all this you add gears and drive wheels - all of which can make a huge difference to the overall performance. As a three pole motor may be running faster, it needs lower gearing for our use - which increases power - again.
But, at the end of the day, quality will out perform poles.
Oooh - poles apart :lipssealed::lipssealed::lipssealed:

and yet some of their chassis use Buhler 5-pole motors :think::think:
 
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stockers

Trains, aircraft, models, walking, beer, travel
24 Oct 2009
25,571
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Nr. Ashford, Kent. England.
.............and yet some of their chassis use Buhler 5-pole motors :think::think:

Multi pole motors tend to start and run better. We often run our motors quite slowly - a multi pole motor is probably smoother.
 

Rhinochugger

Retired Oik
27 Oct 2009
29,570
3,548
North West Norfolk
Multi pole motors tend to start and run better. We often run our motors quite slowly - a multi pole motor is probably smoother.
Yeah, well, that's what started me off - I usually go for a 5-pole motor :think::think::think::think: - although I do have one loco with a Buhler 7-pole motor, but with its 50:1 gearing, it's difficult to really pick up how smooth it is
 

casey jones snr

Registered
20 Apr 2010
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Charnwood Forest Railway. Rothley. Leics.
Due to operational difficulties (buffer lock when shunting) I decided to change the outside buffers and coupling hooks. I wasn’t overly keen on the single combined coupler and hook. I opted for the multiple height coupler which I think suits the locomotives rather well. The side safety chins also serve to disguise the original side buffer holes.
D09F37BE-A96F-408E-9048-46B37666B440.jpeg 4921DB85-C587-406E-90D4-86D59F75276E.jpeg 8A7C7FEB-EC7A-45C4-8AE6-14B73E1F2751.jpeg D09F37BE-A96F-408E-9048-46B37666B440.jpeg 4921DB85-C587-406E-90D4-86D59F75276E.jpeg 8A7C7FEB-EC7A-45C4-8AE6-14B73E1F2751.jpeg
 
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PhilP

G Scale, 7/8th's, Electronics
5 Jun 2013
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Tamworth, Staffs.
I like the look, but those chains look remarkably close to the railhead?

I hope they don't catch on anything.. :eek: :think:
 
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dunnyrail

DOGS, Garden Railways, Steam Trains, Jive Dancing,
25 Oct 2009
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St.Neots Cambridgeshire UK
Due to operational difficulties (buffer lock when shunting) I decided to change the outside buffers and coupling hooks. I wasn’t overly keen on the single combined coupler and hook. I opted for the multiple height coupler which I think suits the locomotives rather well. The side safety chins also serve to disguise the original side buffer holes.
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Sensible conversion Paul, double buffers unless they are oversize will not work that well through many of your points as you have found out. I would think R3 minimum and then not on a crossover but to a Siding that has a good straight length before any curve. On my 0 Gauge Standard Gauge Light Railway I had to incorporate a bit of straight on the 2’6” Crossovers and with the Bogie Coach have Elongated oblong buffers to stop locking.
 

casey jones snr

Registered
20 Apr 2010
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Charnwood Forest Railway. Rothley. Leics.
I like the look, but those chains look remarkably close to the railhead?

I hope they don't catch on anything.. :eek: :think:
Optical illusion Phil, they don’t extend below the buffer beam.
 

casey jones snr

Registered
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Charnwood Forest Railway. Rothley. Leics.
I note that the good people of Roundhouse have published on their Facebook page a picture of my new all yellow Merseysider. I will be picking it up when my Hercules is completed and ready for collection.
 

Gizzy

A gentleman, a scholar, and a railway modeller....
26 Oct 2009
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As they are Merseysider locos, I reckon the red engine is fine, but the green one should be an Evertonian shade of blue....
 

casey jones snr

Registered
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Charnwood Forest Railway. Rothley. Leics.
The latest Merseysider “Evie” was collected from Roundhouse Engineering today.
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Evie running light engine on acceptance trials.
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Evie with a few side dump hoppers on acceptance trials. Ivor looks on.