City of Truro - The truth

[daveinstoke]

To me I was surprised just how fast some of our Colonial cousins Giants were. Such as the Big Boy & Challenger class Loco's weight & size etc.

[Green Arrow]

The S1's supposed to have hit 140mph.

So is it LNER, DB, MR or PRR?

[61650GTFC]

Which S1 is this not the Great Centrals 0-8-4 hump shunter a.k.a. Wath Daisy?

[Green Arrow]

No, the Penselvannia Railroad had a duplex called the S1.

[richard]

There's more info here:

http://en.wikipedia.org/wiki/PRR_S1

Too big, heavy, and rigid for most of the Pennsy's lines. Look at that calculated tractive effort though...


Richard

[61650GTFC]

Only joking. I bet there wouldnt be much left of the big end bearings on an LNER S1 with its tiny wheels at those speeds and a few hot boxes!

[Tom Quayle]

I know it proberbly not going to sit well with most but imagine if Hawksworth had produced his pacific. Which was supposed to be like and unstreanlined dutchess but more powerful.

[Kyle1987]

in the end the true first 100mph honour goes to Flying Scotsman, as it was the first proved. City of Truro's remains unproven, and a large amount of error could have befallen its timing measure. In fact, it is believed that the timer (who was that again anyway?) mistook a fencepost for the distance post to record an incorrect time!

[Nigel Gresley]

in the end the true first 100mph honour goes to Flying Scotsman, as it was the first proved.

I hate to say this, but even the Flying Scotsman's claim is not proven.
A friend of mine has done much research and his findings reveal that the first proven 100mph by an LNER locomotive was the run by Papyrus on 5th March 1935

Did 4472 reach 100 mph?
4472 ran superbly on 30th November 1934, averaging high speeds and setting journey times never before seen in the UK. But 4472, "Flying Scotsman" did not reach 100 mph on that day. Her maximum speed was 98 mph, as recorded and reported by C.J Allen at the time, and as subsequently "endorsed" by O.S.Nock. Two gentlemen who were among the most respected steam locomotive performance experts in railway history.

http://www.germansteam.co.uk/Tonup/tonup.html

[Kyle1987]

My bad! Pardon my ignorance. lol.
Either way; the official title belongs to the LNER

[52D]

Where was City of Truro shedded in 1940/41.

[Pyewipe Junction]

Have a look at this site:

http://www.germansteam.co.uk/FastestLoc ... tloco.html

[Sailor Charon]

There's more info here:

http://en.wikipedia.org/wiki/PRR_S1

Too big, heavy, and rigid for most of the Pennsy's lines. Look at that calculated tractive effort though...


Richard

From what I've seen, the Garratt the GWR were thinking about that used 2 28xx chassis would have had a tractive effort of over 70,000...

[richard]

Maybe - when the LNER made one out of two O2s (=6 cylinder 2-8-8-2), the tractive effort was quoted at 72,940lb.

Of course the U1 was not considered a great success - even when converted to oil burning.

Richard

[73D]

The recorder of City of Truro’s run was Charles Rous- Martin a very respected train timer. OS Nock in his book ‘Speed Records on Britain’s Railways’ wrote an appendix on the controversial 102.3mph dash down Whiteball.

It seems that Rous Martin used two stopwatches and recorded every quarter mile, which gave speeds of 81.8, 84.9, 88.2, 90.0, 91.8, 95.7, 97.8 and 102.3mph. Nock says that on a plotted graph the speeds seem reasonable except for the last figure, which should more logically be 100.0mph. He then gives reasons for the discrepancy and goes on to say that he thinks City of Truro did touch 100mph. As Mr Nock seemed to know what he was doing, who am I to disagree!

Now what about the 120mph achieved by 2903 Lady of Lyons, with CB Collett on the footplate in May 1906!