Discussion in 'Technical Reports' started by Bertil Persson, Oct 16, 2020.
The route works rather well. But I miss the timetable. And look at the track waivers!
Oh my, they're touching the third rail
Thats alotta damage!!
They must be immune to high voltage electricity. They may even feed off of it.
One question I have on the Isle of Wight route what is the purpose of forward 2 on the direction control lever is it to give train boost on hills like a kickdown/overdrive on a car throttle type thing as cannot find instructions for class 438
I believe it was described as like the transmission on a car, a gear change if you like, only it will probably be an electrical function rather than mechanical.
The power controllers are not fully variable like a model railway controller, they have individual settings that use various methods to control the power delivered to the motors. Through a shunt or resistor for short duration low power, or series for lower speeds and parallel for higher speeds. (I’ve edited this bit, good reference at http://www.railway-technical.com/tr...in-equipment/electric-traction-control-d.html)
The Forward 2 is most likely an extension of this adding another range of selections. Would be nice to see a proper manual about this though.
Other locos use tap changers or thyristors to provide more granular control.
Many thanks for your help and swift reply looking at what you’ve said it makes perfect sense some of the milkfloats I used to drive had a similar mechanism with a additional floor based booster pedal/switch for extra speed
No probs. I got a bit wrong in the above post, was thinking about the supply side rather than delivery. Now changed.
I found out that you need step 2 when going on the faster parts and when going uphill.
Forward 2 is not used in real life by drivers due to the age of the motors.
Forward 2 is bad news in real life but good news for the virtual driver on the fast sections. I expect Sam will abuse it every time he drives. Forward 1 and Forward Grip it and rip it.
I expect sam or natalie will use it tonight, maybe even some colonel cam aswell.
Head out left and headout right camera modes are reversed, headout left is right and vice versa for me.
Probably an oversight as on German locos it's probably that way round ...
Oddly, here’s what the Rivet manual has to say on Forward 2.
I didn’t know there was a manual.
I do now
The manual likely describes what Forward 1 & 2 is designed to do, but I believe Forward 1 is favoured in real life now to limit wear and tear on the motors, which have very few if any remaining spare parts.
Manual mentions the BR204 also, so I wouldn’t worry about it too much!
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