Technical Talk

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Renegadenemo
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Re: Technical Talk

Post by Renegadenemo » Sun Oct 07, 2018 4:38 pm

It doesn’t take a genius to work out what caused one of the splashes
Not sure what is meant by that but the major splashes were the front spar, the steering box and right hand cockpit rail and the left hand cockpit wall in that order.
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Gareth Hayes2
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Re: Technical Talk

Post by Gareth Hayes2 » Tue Oct 09, 2018 8:33 pm

Thanks for clearing up the enquiry gentlemen. E en if it did show me up as something of an idiot. As the articles responsible for the splashes weren’t at all what I thought they were

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Renegadenemo
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Re: Technical Talk

Post by Renegadenemo » Thu Nov 29, 2018 2:12 am

Fab little doco / interview here with the genius behind the Orph', amongst his many other achievements. Not to be missed.

https://www.youtube.com/watch?v=by4lH2whhjk
I'm only a plumber from Cannock...

"As to reward, my profession is its own reward;" Sherlock Holmes.

'Sometimes you gotta be an S.O.B if you wanna make a dream reality' Mark Knopfler

Scots Pine
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Re: Technical Talk

Post by Scots Pine » Thu Feb 14, 2019 11:53 pm

Been following the twitter feed / pics for a while now.

Something that intrigued me today...re original & new panels - it looks like only parts of original panels are there? How did you integrate original with new and have you found any of the original parts to have any particular metal fatigue weakness?

Bit of a newbie question I know...

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Renegadenemo
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Re: Technical Talk

Post by Renegadenemo » Fri Feb 15, 2019 1:24 am

Something that intrigued me today...re original & new panels - it looks like only parts of original panels are there? How did you integrate original with new and have you found any of the original parts to have any particular metal fatigue weakness?
If you have a dig back through the diary you'll find lots of how we did it but essentially what happened when we had an old and wrecked panel was to build a brand new one from fresh material that was a perfect fit then gradually cut it away and let in the old, damaged material, adjusting the shape as we went until old had completely supplanted new but with its shape returned. We called it 'conserveering'. The museum types wanted it all left bashed and broken but it was useless like that (we did leave some parts bashed up to tell the story and things like the old air intake skins, which are on display in the museum) but mostly we could make it good again. Conservation meets engineering - get it?
The old panel you saw tonight on Twitterface departed the scene wrapped around the end of the front spar and so is mostly original. The sponson noses are new-build so they need almost no fettling ahead of the blue paint.
As regards fatigue, etc. There was some age-hardening of some of the more exotic materials and some were heat-treated to give them certain properties but such things can be reversed, corrected and made good with appropriate heat treatments, which we used where necessary. That along with x-raying the frame and using dye-penetrant or fluorescent/UV testing on any safety critical parts left us completely confident that we've left nothing of concern lurking in the structure. It's been a pretty thorough job.
I'm only a plumber from Cannock...

"As to reward, my profession is its own reward;" Sherlock Holmes.

'Sometimes you gotta be an S.O.B if you wanna make a dream reality' Mark Knopfler

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Richie
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Re: Technical Talk

Post by Richie » Fri Feb 15, 2019 9:43 am

I recall the panel which Bill is currently working on, I spent a large amount of time making a perfect (if I do say so myself) reproduction, unaware of the intention to merely use it as a buck to fix the original fabric (which I didn’t know we had)

Indeed it was an Alfred Hitchcock moment when Bill and Mike produced the wreckage from the store, and whilst sniggering somewhat, theycset about hacking into my work of art.

Ultimately it was for the right cause, it resulted in the correct shape being obtained and the original fabric being returned.
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GeneFox
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Re: Donald Campbell's restored Bluebird in museum home row

Post by GeneFox » Fri Feb 22, 2019 1:59 pm

Wouldn't it have the capacity to be possible that the best secure speed for Bluebird k7 to soundly go before taking care of be airborn had recently of late been misconstrued with the guide of the Norris siblings and numerous others?

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Richie
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Re: Technical Talk

Post by Richie » Fri Feb 22, 2019 3:16 pm

Sorry Gene, I don’t understand what you have said, I am guessing google translate has not worked :)
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Techteam
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Re: Technical Talk

Post by Techteam » Fri Feb 22, 2019 4:12 pm

Richie

I think perhaps what he is trying to say is, what is the maximum safe speed for K7 before it tries to become airborne ? Implying what was thought to be safe before the crash was miscalculated. It is not a simple question to answer as there were, I suspect, many more factors other than speed that are not in the public domain which contributed to the accident.

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