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 Progress?

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Edward Pickering

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Number of posts : 734
Age : 40
Localisation : Gloucester
Registration date : 2007-02-19

PostSubject: Progress?   Tue Apr 01, 2014 9:54 pm

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Trevor Amos



Number of posts : 870
Registration date : 2010-08-13

PostSubject: Re: Progress?   Wed Apr 02, 2014 12:00 am

Once again our thanks must go to the ever dependable Ed for posting this important document for us!!


Trevor
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dansofield550

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Number of posts : 362
Localisation : gravesend kent
Registration date : 2011-10-23

PostSubject: Re: Progress?   Wed Apr 02, 2014 8:09 pm

so your secret weapon is a tiny little man about 60mm high?
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Trevor Amos



Number of posts : 870
Registration date : 2010-08-13

PostSubject: Re: Progress?   Thu Apr 03, 2014 1:47 am

Dan,
I was hoping that no one would cotton on to the little deception that was at play here. I do feel sorry for the guy depicted, a very affable Australian by the name of Rod Short, his usefulness is, sadly, over and the new chap, John Long, will take up his new duties as soon as the development engine is fully up and running. It does, however, speak volumes for the willingness of both, Mr.Short and Mr.Long, to be employed in this way. Rod did complain of being used and subsequently discarded, but there can be no room for sentimentality in the forward thrust of cutting edge Bantam engine development!
To stagnate is to then decline, and so the quest goes on, and on, ad-infinitum, and we must be prepared to use any means by which success may be fully realised!

But I do have to caution others hoping to pursue this line of thinking and secure their own, personal, "insider", that passport issue and control in and out of Lilliput can be both, tricky and frustratingly protracted, to say the very least!? I speak from personal experience, and acknowledge the assistance provided to me, by one, J. Swift, whose services were kindly provided by Her Majesty`s diplomatic service.

I will issue performance updates as and when appropriate, so that, by way of valediction, is about the long and short of it all ?

Trevor
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john bass

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Number of posts : 1734
Age : 88
Localisation : Bensberg, Germany
Registration date : 2006-12-06

PostSubject: The short and long of it....   Thu Apr 03, 2014 5:45 am

As the bishop said to the actress -- "...that is the long and short of it my dear -- after all that┤s said and done."

This is only about third-hand so I cannot vouch for its authenticity. Probably money was involved ...

Minor point though, Trevor -- speaking of length -- conrod, I mean: didn┤t we go over this way back in 2012 and you never answered my query about the ╠deal┤ length ...

...of the Bantam Racing Con-Rod -- I mean.

It was a matter of the preference for a longer `lagging┤ time at BDC or at TDC....

Cheers!

JayBee.
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Trevor Amos



Number of posts : 870
Registration date : 2010-08-13

PostSubject: Re: Progress?   Thu Apr 03, 2014 8:46 pm

Woops, sorry for 2012 John, yes, I should have replied!

It is always preferable to have a short stay at TDC and a longer one at BDC, at least it is for a Bantam. Around TDC, combustion expansion is messed with and there is far too much time for precious heat energy to be absorbed by the piston crown, head, cylinder wall and so on, and a big bore just makes things far worse . However, the longer stay at BDC, for a given transfer timing, serves to extend the transfer time-area and allow more mixture to make its way into to the cylinder, so, you lose at the top and gain at the bottom.

Coincidentally, I have been on the old drawing board and manipulating the trusty slide rule and have come up with some interesting stats on just this same topic. When it is all readable I`ll get Ed to post it on here, even I was surprised at what was thrown up ? As to the ideal length, I don`t think there is one, within a certain range, but 125mm is what shouldn`t be used !

Regards, Trevor

PS, I have just had the Lilliputian embassy on the phone, they are not happy bunnies, state secrets and all that !
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