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Old 29th July 2019, 07:37 PM
Cygnus X-1 Cygnus X-1 is offline
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Full Name: David Bramwell
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I wish I had gone on the Sunday for the better weather but I have to say that the dyno' show was worth the 150+ miles of travelling I did on the Saturday .
Shame that more engines didn't use the heavy haulage / play pen provided , later in the day it looked more than ideal for engine movement .
Does anyone know the final figures for all the engines that took part ?

Dave
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Old 29th July 2019, 08:10 PM
Phil in Welland Phil in Welland is offline
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Full Name: Philip Blackman
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Quote:
Originally Posted by Cygnus X-1 View Post
I wish I had gone on the Sunday for the better weather but I have to say that the dyno' show was worth the 150+ miles of travelling I did on the Saturday .
Shame that more engines didn't use the heavy haulage / play pen provided , later in the day it looked more than ideal for engine movement .
Does anyone know the final figures for all the engines that took part ?

Dave
There were about 90 full size engines, and the play pen/haulage arena was much busier on the Sunday.
It was remarkable how the ground recovered overnight after the Saturday rain.
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Old 30th July 2019, 07:03 AM
Chris Hewitt Chris Hewitt is offline
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Welland is my favourite Rally,

I was at the Dyno when Fowler ploughing engine "The Chief" was really working,
when you see the load going through the belt, it does well to stay on.

it's a reminder of how powerful these engines are.

There's a clip on the Hockley Heath Facebook page-https://www.facebook.com/HockleyHeathSteam/
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Old 30th July 2019, 07:33 AM
tenor tenor is offline
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Full Name: Martin J
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I have previously slammed others for stupidity with a dynamometer, and this video simply shows what can go wrong.

The use of a dynamometer to simply explore what peak BHP can be achieved is exactly analogous to the flat out races of the very early steam rallies. I am firmly with the late Ronald H Clark that any such exercise is stupidity personified.

As for the comment "
Quote:
I think it shows just how good that engine and crew are.
NO - THEY SHOULD NOT HAVE GOT INTO THAT SITUATION IN THE FIRST PLACE.

By all means demonstrate a dynamometer, but limit the maximum power to a conservative multiple of the nominal horse power and always with the engine on the governor. Maybe an exercise in efficiency measurement would give people something more challenging to do.

I trust the NTET and rally safety officers will have taken note and learnt from this near miss.

Martin
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Old 30th July 2019, 01:23 PM
the highwayman the highwayman is offline
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Full Name: stephen bullman
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I have also maintained that Dyno testing should be carried out with the governor belt on, in fact it is a good way of setting the governor up to work effectively. Another way of looking at it would be to ask whether thrashing or wood sawing should be carried out without a governor belt.
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Old 30th July 2019, 01:43 PM
shines shines is offline
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Full Name: Stuart Hines
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Governors were fitted for a reason, I don't see any point in doing belt work with out them in use really.
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Old 30th July 2019, 02:35 PM
mikem mikem is offline
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Full Name: mike m
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Utter stupidity from the crew on the engine and the dyno. They had a warning a few minutes earlier when the belt came off but fell to the ground. They were lucky that it was only the engine that suffered any damage.
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Old 31st July 2019, 07:15 AM
froudy70 froudy70 is offline
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Full Name: Graham froud
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I guess we could all just sit around boiling water, Or is that a little extreme for some?
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  #9  Post / In Thread 
Old 31st July 2019, 07:50 AM
tenor tenor is offline
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Full Name: Martin J
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Quote:
I guess we could all just sit around boiling water, Or is that a little extreme for some?
Accidents have a pyramid shape. For every 10 near misses, a finger gets a minor cut, for every 10 minor cut fingers, there is one serious cut. For every 10 serious cuts, there is a finger lost, for every 10 fingers lost, there is limb lost, for every 10 limbs lost, there is a fatality.

If you choose to ignore the near misses, you are going to work your way up that pyramid. The particular bit of tom foolery in question could have had very different consequences if a bit of belt had caught the driver - I understand it trashed the steersman's seat.

The problem with dyno testing is that it turns into a willie competition - mine has more BHP than yours. So somehow we have to reign in the testosterone and put some sense into it.

If you read my post, you will see I made positive suggestions on how that might be done while keeping dyno testing.

Martin
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Old 31st July 2019, 09:20 AM
steamfly3535 steamfly3535 is offline
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Full Name: Chris Hazel
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The first beheading at a steam rally should bring the punters in............
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