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Old 11-02-2018, 04:31 PM   #1
4VEP
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Default Hornby Class 800 IEP

This Month's Hornby magazine has a review of the Class 800 bi mode train. I have posted
the link below because it is a short video of the train running, the first one I have seen.

https://youtu.be/6gbIstfJKSI

The review in the magazine notes the length of the cars will mean the train would not clear lineside features on some layouts.

A bi mode train is an electric train with a pantograph which has a diesel engine to allow it to operate at a slow speed to destinations beyond the electrified section. A bi mode train can escape from a section where the catenary has been brought down.

A bi mode train model allows you to have a modern express train without any representation of catenary, unlike the Pendolino which runs off an imaginary power source on most layouts!
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Old 11-02-2018, 06:09 PM   #2
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Some Bi-modes runs run of a third rail or diesel. Class 73 springs to mind.
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Old 11-02-2018, 06:34 PM   #3
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The review in the magazine notes the length of the cars will mean the train would not clear lineside features on some layouts.
Will they pass each other on 2nd and 3rd radius?
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Old 11-02-2018, 06:35 PM   #4
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According to the article maybe not. Really depends on your track.
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Old 11-02-2018, 07:03 PM   #5
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Some Bi-modes runs run of a third rail or diesel. Class 73 springs to mind.
The class 73 is officially known as an 'electro-diesel'. Tractive effort 197kn Electric, 160kn diesel. The term 'bimode' denotes a specification for an all electric train with a single diesel engine. However this can be upgraded to a 5 car set with three carriages with underfloor diesel engines. Complete lowdown in Hornby Mag Mar2018
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Old 11-02-2018, 07:12 PM   #6
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Isn't that the same? Just a modern term for old tech??
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Old 11-02-2018, 07:22 PM   #7
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Isn't that the same? Just a modern term for old tech??
An electro diesel generates more or less the same tractive effort running off diesel, a bimode train not necessarily. Higher powered diesel sets will be used on lines west of Exeter which are more steeply graded.
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Old 11-02-2018, 07:35 PM   #8
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It is the same FB I looked it up. Doesn’t really matter when it comes to the Hornby version though does it. I can see mass realignment of track and buildings for modern image modellers
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Old 11-02-2018, 07:50 PM   #9
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A bi mode train is an electric train with a pantograph which has a diesel engine to allow it to operate at a slow speed to destinations beyond the electrified section.
I hope it's not that slow when running on diesel! I think these are the trains that GWR have just bought to run from London to the West - electrification only runs to Newbury. The latest ones are being built in Italy and will be running in July - and cost half the price of the ones from Japan - and they are identical!
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Old 11-02-2018, 07:51 PM   #10
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They certainly don’t run slowly on diesel power. They can maintain a steady 125 mph.
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