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S.A.C. Martin's Recent Activity

  1. S.A.C. Martin liked Spamcan81's post in the thread Saint Class 135 ish mph.

    From where I'm sitting, Courier's aim seems to be to disprove Mallard's claim to be the fastest steam locomotive in the world. I feel therefore that his analysis is not dispassionate. I await his thorough probing of the German claim with interest.

    Oct 21, 2017 at 2:35 PM
  2. S.A.C. Martin liked Spamcan81's post in the thread Saint Class 135 ish mph.

    Both Silver Link and Silver Fox attained speeds well in excess of 100 and they've been scrapped. There will be others of course.

    Oct 21, 2017 at 2:35 PM
  3. S.A.C. Martin liked Spamcan81's post in the thread Riddles Quote.

    The Bulleids were no slouches either. As with all front line express locos, it was line speed limits that hindered them, not the inability to run fast.

    Oct 21, 2017 at 2:35 PM
  4. S.A.C. Martin replied to the thread Riddles Quote.

    I think you’ll find quite a few LNER Pacifics were capable of sustained 90mph runs. That was the entire point of building them in the first place. Granted on the routes they ran there were few places to do such speeds - but they all proved...

    Oct 21, 2017 at 11:18 AM
  5. S.A.C. Martin liked MikeParkin65's post in the thread Flying Scotsman.

    Can't imagine any organisation other than Riley better placed to support 4472 given the intensity of its use. Hope they retain the contract to look after it for the forseeable future.

    Oct 21, 2017 at 10:45 AM
  6. S.A.C. Martin replied to the thread Saint Class 135 ish mph.

    Whilst I agree with the crux of your point, my point in a roundabout way is that the comparisons being made and investigations into the two records do not appear to have the same level of scrutiny or questioning. Hence the timepiece question;...

    Oct 21, 2017 at 9:17 AM
  7. S.A.C. Martin replied to the thread Flying Scotsman.

    Get better soon 60103. That sight makes me rather more unhappy than it should, in all honesty. I have every confidence however in Riley & Sons given everything they have done for the locomotive, period.

    Oct 20, 2017 at 11:44 PM
  8. S.A.C. Martin liked big.stu's post in the thread Flying Scotsman.

    Possibly the two most famous locomotives in the world meet in Wansford yard.... ...the Riley chaps have stripped the motion, split the tender, drained the boiler and removed the springs ready for the arrival of two large cranes tomorrow to lift...

    nvr.jpg Oct 20, 2017 at 11:44 PM
  9. S.A.C. Martin replied to the thread Saint Class 135 ish mph.

    Am I to take it you are using a secondary source to make your criticisms?

    Oct 20, 2017 at 11:43 PM
  10. S.A.C. Martin liked andrewshimmin's post in the thread Saint Class 135 ish mph.

    All this is very amateurish. When you have corrected for track curvature, cant, gradient (real), variable atmospheric pressure, air temperature, wind speed and direction, Coriolis effect, variable acceleration due to gravity, curvature of the...

    Oct 20, 2017 at 11:43 PM
  11. S.A.C. Martin liked RalphW's post in the thread Saint Class 135 ish mph.

    Whilst it shows that the two were accurate in relationship to each other, they could both have had the same sort of error. OK so that may be fairly unlikely but you are making an assumption which we all now is never a good thing.

    Oct 20, 2017 at 11:40 PM
  12. S.A.C. Martin replied to the thread Saint Class 135 ish mph.

    Er - hang on a minute Courier. Are you saying you have to disregard the automatic mile notches in the dynamometer car's record? The dynamometer is the known quantity. We know it takes automatic measurements and that those automatic measurements...

    Oct 20, 2017 at 11:39 PM
  13. S.A.C. Martin liked jtx's post in the thread Best British Locomotive.

    Sorry, I was not attempting to excite envy; it's just what happened. You have actually answered your own question above. I, too, was limited to 25 mph (ish) and, mostly, with loads well below the engines' capacities. Comparisons are,...

    Oct 20, 2017 at 11:01 PM
  14. S.A.C. Martin liked Jamessquared's post in the thread Saint Class 135 ish mph.

    Slightly confused by that statement. I assume you mean specifically rail vehicles - by 1934, the aeroplane record was 440mph, and the car record 272mph - and those were proper records, too! (As in, set in controlled, standardised conditions with...

    Oct 20, 2017 at 10:49 PM
  15. S.A.C. Martin liked Eightpot's post in the thread Riddles Quote.

    Not easy site to follow. However, the problem of 9Fs and the like doing 90 mph and its attendant piston speed is that the valve and piston rings don't last very long.

    Oct 20, 2017 at 6:47 PM