I am currently watching the second showing of the BBC programme about the toughest place To be a train driver. They have just shown the speed indicator of the pendelino with the analogue indicator needle showing a speed but the integral digital display showing zero, is this normal?
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Pendelino speed indicator
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Nym
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Yes, because the internal display shows the traction motor braking effort...
notadriver
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I think its expressed in Kn (Kilonewtons) and if I'm right it shows acceleration as well as braking tractive effort.
Nym
Established Member
kN kilo Newtons (not Kn, Kn is Kelvin Nanno) and I think it just shows braking... Although I will stand corrected...
Eagle
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Or knots... but there's already another tachymeter so that would be pointless :P
Nym
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There was me using Kt. for knots...
callum112233
Member
I think that is right. Slightly off topic but a class 67 shows acceleration and deceleration.
western Champion
Member
It just shows braking. There is a digital speedo reading available on the TMS as a back up to the analogue display.
notadriver
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Cheers 
Off topic - but in 'Toughest place to be a bus driver' the London bus driver seemed to be driving quite a high tech bus as well. The dashboard looked very modern and had a rev-counter.
Off topic - but in 'Toughest place to be a bus driver' the London bus driver seemed to be driving quite a high tech bus as well. The dashboard looked very modern and had a rev-counter.Very useful on gradients as well, it actually shows the MPH increase or decrease over a time scale of 1 minute, I use it all the time
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I am not certain but I believe the indication is in a pecentage ratio
Minilad
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They are on Voyagers too. And yes it is shown as a percentage of available brake force
colchesterken
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Hi all, old cogger here, anyone tell me in plain english what a kilonewton is and how it relates to something we understand ie tractive effot ets
for years I have understood tractive effot in pounds now new locos are refered ti as KW
kilowatt cannot relate that to pounds
lets go back to feet and inches..there is 12 pence to a shilling and 20 shillings to a pound
for years I have understood tractive effot in pounds now new locos are refered ti as KW
kilowatt cannot relate that to pounds
lets go back to feet and inches..there is 12 pence to a shilling and 20 shillings to a pound
Nym
Established Member
1 kN is roughly the same as holding up a 100kg (220lb) weight against gravity. And is therefore equivilant to approximately...
1 N = 0.22481 lbF so 1kN is about 224 lbF, this help?
1 N = 0.22481 lbF so 1kN is about 224 lbF, this help?
lewisf
Member
Oh dear god no! Metric & decimal make so much more sense. But that's another debate entirely.
Back on topic, are there any indicators in a Pendolino/Voyager cab that show the degree of tilt?
starrymarkb
Established Member
And Engineers and Scientists have used Metric for years.
Decimal is a far more logical system...
(Btw the Nautical Mile is an SI unit - the statute mile isn't
)Minilad
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Not in a Voyager. Cant speak for Pendolino
Eagle
Established Member
Get a weighted string and a protractor. Easy.
Sideways g- forces could skew this off though
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