Jaguar's XJ13 as Malcolm Sayer Intended
Discussion
Afternoon Gents. For those who have asked - a bit about progress so far:
"The Gathering"
"Sand-Casting Bellhousings"
"Then and Now"
"Engine Startup"
"Second Startup"
More stuff here - more ...
Hi Sam - I used SolidWorks for the bellhousing.
We have so many technologies available to us now that simply weren't around when these (and similar) cars were first built. It does make me appreciate and respect the old skills all the more. We would now draw something in CAD on a computer screen, check that everything fits, maybe check weights while it is still on the screen. Perhaps even carry out stress analyses etc. We can then design casting patterns for the component (still on a computer screen) that ensure molten metal properly reaches all parts of the mold with no porosity etc. After that, we can 3D print the patterns.
In the past, the engineer would sharpen his pencil, draw it out on paper then have a craftsman produce wooden patterns from the drawing. Those who worked in this way (and those who still do) are nothing less than artists in my opinion!
We have so many technologies available to us now that simply weren't around when these (and similar) cars were first built. It does make me appreciate and respect the old skills all the more. We would now draw something in CAD on a computer screen, check that everything fits, maybe check weights while it is still on the screen. Perhaps even carry out stress analyses etc. We can then design casting patterns for the component (still on a computer screen) that ensure molten metal properly reaches all parts of the mold with no porosity etc. After that, we can 3D print the patterns.
In the past, the engineer would sharpen his pencil, draw it out on paper then have a craftsman produce wooden patterns from the drawing. Those who worked in this way (and those who still do) are nothing less than artists in my opinion!
DonkeyApple said:
What's the reason in needing to repeatedly point out that 'there is only one XJ13' throughout the site?
I imagine its because there are an increasing number of replicas out there (although none as close to original spec as Neville's), so casual observers may think Jaguar made several.I can't wait to see it "in paint."
Roy C said:
DonkeyApple said:
What's the reason in needing to repeatedly point out that 'there is only one XJ13' throughout the site?
I imagine its because there are an increasing number of replicas out there (although none as close to original spec as Neville's), so casual observers may think Jaguar made several.I can't wait to see it "in paint."
I know that subscribers to Pistonheads are likely to be rather more knowledgeable than most about cars in general but other visitors to my own personal site may not be as aware and it sometimes pays to labour the point for the benefit of the casual observer.
XJ13 said:
Roy C said:
DonkeyApple said:
What's the reason in needing to repeatedly point out that 'there is only one XJ13' throughout the site?
I imagine its because there are an increasing number of replicas out there (although none as close to original spec as Neville's), so casual observers may think Jaguar made several.I can't wait to see it "in paint."
I know that subscribers to Pistonheads are likely to be rather more knowledgeable than most about cars in general but other visitors to my own personal site may not be as aware and it sometimes pays to labour the point for the benefit of the casual observer.
I'm just surprised that it's needed as I always thought every man and his dog knew there was only one and that most knew it had been rebuilt after a crash etc.
As a child, I recall Dickie Attwood telling me about the car and it's a truly beautiful thing. Such a shame it never saw action. I'm always reminded of the XJ13 when I see pictures of the latest Jag supercar prototype and the fact they haven't taken that further (yet).
RoverP6B said:
The next logical step might be to do a high-tail 7-litre version to go chasing McLarens in the Can-Am/Group 9 class...
Now that's a thought When Le Mans proposed a reduction to a maximum of 3 litres Malcolm Sayer made a couple of designs which never saw the light of day. Perhaps one of these instead?
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