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figworthy

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Posts posted by figworthy

  1. 13 hours ago, jamie92208 said:

    Despite it being difficult to work out which canal is going to become the trackbed in the early section. 

     

     

    I suspect that I'm not alone in hoping that someone has worked out that the track bed needs to be a bit higher than those earth works, otherwise it could make for some interesting travel.

     

    Adrian

    • Like 3
  2. 5 hours ago, DCB said:

    The Thames lacked modern locks so effectively Lechlade was the terminus for narrow boats, albeit there was a break of gauge at Brimscomb Port where the Broad Stroudwater Canal with short locks joined the narrow Thames and Severn.

     

     

    "Narrow" generally implies 7ft wide locks, which wasn't the case with the Thames & Severn Canal.  No doubt some one thought it was a good idea at the time, but the Thames & Severn had locks 86ft x 12 ft 3, whereas the connecting Stroudwater Navigation were 72ft x 15 ft 6.

     

    Adrian

    • Like 3
  3. 30 minutes ago, Andy Hayter said:

     

    It won't affect me either but it can affect which of the two days will be the shorter.

    Yes it can affect the longest day as well.

    We mentally fix the solstices as 21st December and 21st June.  So we fix the occurrence of these events as being respectively every 365 days.  The Earth however goes around the sun in 365days and a tad under 6hours.   So the solstice (both of them) goes forward nearly 6 hours every year and can end up being on the day after the 21st.   Then along comes a leap year and resets the calendar with the astrological movements and we go back to the 21st being right again.  

     

    My probably flawed logic says that the hours of daylight in the Northern hemisphere will be getting shorter until 04hrs whatever on the 22nd, so the amount of time for the daylight to lengthen compared to the 21st is reduced by those 4 hours so the 22nd will be the shorter.

     

     

    Here at the Manor House, the evenings are already drawing out (a whole minute so far), but the mornings are still drawing in, and will continue to do so until the end of the month.

     

    Adrian

    • Like 1
  4. 1 hour ago, NHY 581 said:

    Had a play with a sound fitted specimen today, Great fun and quite loud but I was intrigued to find that the sound file contains a couple of whistles as well as, for me at least, the more expected bell. I just didn't expect a whistle as well as a bell. 

     

    Rob. 

     

     

     

    It's all about the bells and whistles these days.

     

    Adrian

    • Round of applause 1
    • Funny 6
  5. 15 hours ago, polybear said:

    The dreaded G & E Bill dropped thru' the letterbox arrived in the Inbox earlier; seems a Certain Bear scoffed an extra 1/3rd of a Deltic last month, mainly thru' exploits carried out in the muddlin' room.  Beary Conclusion?  Shivverin' has a lot going for it....

     

     

     

    Pity Bear doesn't have a decent fur coat he can wear.

     

    Oh, hang on ...

     

    Adrian

    • Funny 15
  6. 11 hours ago, KNP said:

    Waiting for the off....

    poised like a coiled spring ready to leap into action...

    Ready, forever ready for action!!!

     

    Hang on a minute this is LM.....

    Lets have that cup of tea first whilst we give this some thought

    Then we can leap into action.....

     

    5630.jpg.3977729be674c9dd8a7fae7dca2aee19.jpg

     

    Leap ?

     

    Sounds a bit energetic for LM.  "Gently move forwards" perhaps.

     

    Adrian

    • Agree 4
    • Funny 3
  7. 4 hours ago, jamie92208 said:

    Much of the trackbeds have now gone under roadworks and housing developments.  

     

     

    I wonder how many of those house owners have bothered to look up what their shiny new house was built over.

     

    A few years back, I was working with a lad who'd just bought his first house on the outskirts of Dudley (Wet Mudlands), and I suggested to him that he looked up what the site had been.  A quick session on the NLS site produced a combination of surprise and horror.  Even though he was a local lad, he'd no idea of the history of the area.

     

    Adrian

    • Like 3
  8. 9 hours ago, Michael Hodgson said:

    Am I missing something here ?

     

    There must be a lateral component of the force exerted on the loco by the towrope, which would tend to make it want to derail towards the canal.  Depending on the mass of the vessel relative to the loco (especially in ship canals), that could be considerable; it could be reduced by using a longer rope, but that would then be less inclined to help steer the vessel in a straight line.

     

     

    6 hours ago, Artless Bodger said:

    Just a thought - several comments here about locos being pulled sideways due to the triangle of forces, but horses didn't fall over and the tow rope was attached to their collar. 

     

     

    The trick is not to tow from the bow.  If you are towing from the bank (how doesn't what is doing the pulling), you tow from a mast which is stepped on the centre line 25-30% of the way down the hull.  That way the point of effort isn't pulling the bow into the bank.  Having a good length of line also helps.

     

    With horses, whilst they took the load at the collar, they had a set of traces running down each side of their bodies which meant that the line attached just behind them.

     

    Adrian

    • Like 1
    • Informative/Useful 3
  9. 1 minute ago, martin_wynne said:

     

    @figworthy

     

    Hi Adrian,

     

    A 1kg reel of filament is currently showing as £13.56 (it varies), see: https://www.amazon.co.uk/gp/product/B07FQKP7NS/

     

    Using the default settings, a timbering base for a B-7 turnout in 4mm/ft scale weighs about 25g.

     

    You can therefore make 40 such bases from 1 reel, and each one will cost 34p.

     

    cheers,

     

    Martin.

     

    Hi Martin,

     

    Thanks, that is a really helpful answer.

     

    Adrian

  10. 4 minutes ago, KeithHC said:

    Once the plan is sliced that will give you an estimate of length of filament and approx cost. If you look back on this thread Hayfield has outlined some estimated costs for a typical turnout. I seam to recall that in filament about 40p similar in resin and about £1.00 for rail. Ok it does not take into account the machine cost and labour cost. But no matter what it still works out a lot cheaper than any other method. However it is the flexibility that this system gives. For me the ability to produce a more realistic set of track work is key.

     

    Keith

     

    Thanks.

     

    It wasn't so much the cost that I had in mind, it was more knowing how much filament/resin I would need if I were to print some or all of the track plan.  Knowing that I can do it for "traditional" methods, it would be useful for forward planning.

     

    Adrian

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