How Small Radius Can An 0-4-0 Go?

the term "Talgo".

just you personally.

The first Talgo train basically used a downward pointing peg at the point of the A frame which dropped into a socket mounted on the axle of the next section. (the axle was like that at the rear of a modern FWD car, "U" shaped and non-revolving) That coupling had more in common with early tinplate toy trains.

Reply to
Greg Procter
Loading thread data ...

Aww, so what is a "seppos"?

Reply to
Greg Procter

Here in NZ, a "Kiwi" is firstly a flightless bird, and secondly a New Zealand citizen (slang) A "kiwi fruit" is the hairy brown fruit with the green inside.

Reply to
Greg Procter

Will ingore the the lack of manner in the above statement, even though it's not unexpected given the writer.

I now think you're back pedelling. You stated that the UK is flat, it most definately isn't.

I don't think yu made no mention of poorly laid track.

Once again, you demonstrate that you don't know what you are talking about. In the UK, railways in general didn't follow the lay of the land, they were built to be as flat as possible. On gently rolling "flat" ground, shallow cuts and low fills were built to keep the railway as flat as possible. In North American on gently rolling "flat ground", the railways just followed the gentle rolling of the land with, in many or even most cases, little effort was made to keep the grade at zero. You can see that even today with the train gently going up hill and down over perhaps a mile of its length, something you rarely see in the UK as a grade would be a several mile long climd of decent, not several grade changes in a mile that you commonly see in North America..

I don't understand your point here. "Flat land": is far from flat, it's usually full of gently rolling "hills", perhaps only a few feet high, but they're there anyway. The praires are not flat, for example. .

Once again, you demonstrate that you don't know what you are talking about. A railway vehicle on truck/bogies is far more flexible that one on a rigid four wheel chassis. Springing only compensates for very small twisting motions, unlike a truck/bogie which is much more forgiving.

I'll agree with the above but the point is that the bogie/leading truck design is still far more forgiving than of the twisting action imparted by track that is not almost perfectly level across the gauge. Dunno the technical term for it.

-- Cheers Roger T.

Home of the Great Eastern Railway

formatting link

Reply to
Roger T.

Will ingore the the lack of manner in the above statement, even though it's not unexpected given the writer.

I now think you're back pedelling. You stated that the UK is flat, it most definately isn't.

I don't think yu made no mention of poorly laid track.

Once again, you demonstrate that you don't know what you are talking about. In the UK, railways in general didn't follow the lay of the land, they were built to be as flat as possible. On gently rolling "flat" ground, shallow cuts and low fills were built to keep the railway as flat as possible. In North American on gently rolling "flat ground", the railways just followed the gentle rolling of the land with, in many or even most cases, little effort was made to keep the grade at zero. You can see that even today with the train gently going up hill and down over perhaps a mile of its length, something you rarely see in the UK as a grade would be a several mile long climd of decent, not several grade changes in a mile that you commonly see in North America..

I don't understand your point here. "Flat land": is far from flat, it's usually full of gently rolling "hills", perhaps only a few feet high, but they're there anyway. The praires are not flat, for example. .

Once again, you demonstrate that you don't know what you are talking about. A railway vehicle on truck/bogies is far more flexible that one on a rigid four wheel chassis. Springing only compensates for very small twisting motions, unlike a truck/bogie which is much more forgiving.

I'll agree with the above but the point is that the bogie/leading truck design is still far more forgiving than of the twisting action imparted by track that is not almost perfectly level across the gauge. Dunno the technical term for it.

-- Cheers Roger T.

Home of the Great Eastern Railway

formatting link

Reply to
Roger T.

Only the ones I utter. Other utterers are on their own.

Froggy,

Reply to
Froggy

Don't be so provincial.

Reply to
Steve Caple

As opposed to rough trade?

Reply to
Steve Caple

Green, pink, what's the dffference; we're equal opportunity dissers.

Reply to
Steve Caple

Relative to New Zealand (where I live) it is flat flat flat.

True, I did not.

If the land is flat then absolutely any alignment will "follow the contours".

Sure.

I think we've wandered a very long way from the point.

It all depends - the railway I model (Koeniglich Wuerttembergishe Staats Eisenbahn) initially used rolling stock imported from the USa. The terrain was hilly and the alignment neccessarily twisting but the track bed was well formed. The advantage of bogies was that they allowed the rolling stock to more easily follow the track alignment. By the time the extra vertical movement of individual axles of a bogie/truck is required over the individual journal movement of a 2 axle wagon, you have _serious_ track problems.

Damn! The word won't come for me either! :-( "Twist" pretty well covers it.

As in the US, the KWStsE developed equalization to keep the wheels on the rails (vertical) and various extremes for horizontal alignment (eg Klose), whereas British (locos) generally relied on simple unequalized spring suspension for vertical movement and frame flexing for horizontal axle movement. (yeah yeah, there were lots of exceptions :-)

Reply to
Greg Procter

LOL. I'll try to remember that.:-)

Reply to
Greg Procter

No really!

Reply to
Greg Procter

Manufacturing (production planning etc)

Reply to
Greg Procter

Any time you eat a pink Kiwi fruit, just remember that I now deny all responsibility!!!

Ouch - I just figured one variety that is pink inside - you filthy ....

Reply to
Greg Procter

Snake = Joe Blake Yank = Septic Tank ergo "Seppo" Some kind of Cane Toad slang.

You know how those Cane Toads are . . . . .

Froggy,

Reply to
Froggy

Once was enough - Once was enough...

Oooppss!

Reply to
David French

:) "David French" skrev i meddelandet news:431cc12a snipped-for-privacy@mk-nntp-1.news.uk.worldonline.com...

oops..... Beowulf

Reply to
Beowulf

Play/Say it again Sam/Roger.

Delete some/all of the above where applicable.

David.

Reply to
David French

Greg Procter schrieb:

I hope they ask again before starting to work :)

Reply to
tobias b köhler

A crumpled Volvo and a derailed nuclear waste wagon beside the tracks at a level crossing might make an interesting diorama! Imagine the varied lighting effects you could include. =8^))))

Regards, Greg.P.

Reply to
Greg Procter

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.