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oldtuckunder

Now there's lightening and lightening

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Gosh, Hamish, not motor racing AND Pop royalty?

this deserves a new thread!

John

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Yea

28 minutes ago, JohnD said:

Gosh, Hamish, not motor racing AND Pop royalty?

this deserves a new thread!

John

Yeah you are right John. 

Sorry for the hi jack lads :blush:

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Re Chapman

He was featured on great lives last night on radio 4

https://www.bbc.co.uk/programmes/m00020yv

"Colin Chapman, creator of Lotus Cars, nominated by Rohan Silva
Colourful and controversial, Colin Chapman changed the face of both Formula One and sports cars. Matthew Parris profiles the man behind Lotus with Rohan Silva and Maurice Hamilton"

 

worth a listen and nice to hear an engineer get some radio time.....

Mike

 

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10 hours ago, mpbarrett said:

Re Chapman

He was featured on great lives last night on radio 4

https://www.bbc.co.uk/programmes/m00020yv

"Colin Chapman, creator of Lotus Cars, nominated by Rohan Silva
Colourful and controversial, Colin Chapman changed the face of both Formula One and sports cars. Matthew Parris profiles the man behind Lotus with Rohan Silva and Maurice Hamilton"

 

worth a listen and nice to hear an engineer get some radio time.....

Mike

 

I heard that. Quite a coincidence. Worth a listen I think. 

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16 hours ago, Nick Jones said:

Yeah....... well it might be ok if it were steel but it's owner proudly confirmed it to be an original cast iron one. He got shirty when I posted a couple of links to flywheel failure videos.  

 I wouldn't get in a car with that.

Hello Nick

                    To be fair he has good high quality bolts holding on!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Ha Ha

Roger

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as the class 3 spitfire reaches its final recommissioning re-purposing,(rolling road pencilled for week after next) lots of added lightening is on display. the header rail of course now only required to keep the windscreen in, the welded cage now doing the structural bit. however the peddle boxes apart from a why not! revealed an interesting detail. if you notice on the bottom top? clutch peddle there is an extra bracketwelded on with an adjustable stop, why?

fortunately having access to the cars orinal creator/developer/driver we can find these things out. the car is fitted with a steel inserted alloy racing flywheel with sintered clutch plate and ap racing cover. you do not want these things to get hot or held loaded, so the stop is there so that the throw via the hydraulics can be adjusted so that no matter the angst or panic when you press that peddle the clutch just releases, no more, no less. however whilst that is really only to do with this installation, a further tit bit also came back that from that period there was a lot of thought gone into why crank thrust bearings  were failing so fast, and similar experimentation seemed to show that even slightly extended throw on even standard type  clutch mechanism's whilst holding a  car on the line/hill put a fair amount of needed pressure on the crank and thrust bearings, and that a similar trick could extend their life noticeably.  

 

anyway one to lodge in the grey matter

alan

 

427834082_lightpeddles002.thumb.jpg.b0e65ef2558c8f3e8ffaf50a78cf2adf.jpg

2079906082_lightpeddles001.thumb.jpg.4013a16bd1b3141a0153aef2ba828122.jpg

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2 hours ago, Hamish said:

Are you going to paint it yellow

no its always been red, so red it stays. and despite the extensive lightening remember this car circuit raced for over a decade but is way more solid than a lot of "road cars i have seen. it can be quite a closeted life for a competition, car baring accidents, oodles of attention, tucked up warm and dry most of the year, and pulled out now and again for an at the limits short run :biggrin:

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You do need to keep the woodpeckers away from that.... they’ve had nearly all of it already!

Interesting about the clutch stop and reasons for......

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