Eagle Speedster, One Flaw?

WC1992

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Apr 13, 2014
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Hi,

I realise this is an extremely anorakish thing to ask, but I feel the Eagle speedster is the most beautiful car ever made. The only problem I have is that the central ridge on the bonnet is cut off at a square right angle just the front of the windshield, which spoils the elegant lines of the car in profile. Is there a reason for this design feature? Couldn't it have just gently sloped down?

This is what I mean
http://en.autowp.ru/pictures/eagle_engineering/e-type/autowp.ru_eagle_e-type_speedster_23.jpg
 
Well, the Eagle speedster is based on the Jaguar E-type (quite literally) ... and that has the same little "flaw" if you want to see it like that ... I can?t tell you why Malcolm Sayer (the Designer of the E-Type) did it like that, or if it is maybe even nessecary technically or aerodynamically ...

jaguar-e-type-serie-1-bis-2-26205.jpg
 
The center bulge ends there because that's where the hood or 'bonnet' ends, and the bulge is necessary to clear the cam covers of the tall XK6 engine.

jaguar-xke-hood.jpg


It has to go at least that far back because of the placement of the XK6 in the XKE chassis.
jagrebuild-024.jpg


The bulge could not be continued onto the cowl because engineering it to work with the XKE's wipers would have raised production costs considerably (IIRC) as well as adding complexity and additional points of failure for no good reason.
 
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The bulge could not be continued onto the cowl because engineering it to work with the XKE's wipers would have raised production costs considerably (IIRC) as well as adding complexity and additional points of failure for no good reason.[/QUOTE]

Would it have been that difficult?
 
Eagle Speedster, One Flaw?

Would it have been that difficult?

Yes. Look at the very short cowl and distance between the end of the hood and the front of the windshield. If you continue the bulge, you have to get an irregular windshield and do some clever engineering of wiper linkages and such. The triple wiper system would have had to be completely re-engineered, probably for the worse as a double wiper system could not properly wipe the compound-curve windscreen. Your windshield seal would have been more complex and therefore more expensive (urethane window sealing had not reached Europe yet) and of course far more prone to leak. The hood seal would have had to have been molded especially to fit the bulge instead of just a flat strip off the shelf which back then would have been quite a lot more expensive. Then you'd have to make sure the welding around the curve was done right, to say nothing of the increased cost of making the stamps to crank it out. And so on and so on.

This would have driven the cost of the car up considerably.

This was a car that for the era went and looked like a Ferrari 612 but was priced like a Subaru Impreza. They did nothing that was not strictly necessary. Early E-Types don't even have internal hood latching systems; they had external latches bolted to the outsides of the hood and you buckled the hood down with them. Only later when the E-Type was a smash success did they go back and design internal latches for them. Some of the very earliest preproduction cars didn't even have that, they had leather belts instead of latches.

So, yes, it would have been difficult, expensive, and as the sales numbers showed, completely unnecessary. Pretty much nobody notices the cutoff as the windshield visually blends it in from most angles.

philip_with_his_e-types-9600hp_and-848CRY.jpg


Finally, Jaguar (as they did with so many things pre-Callum) turned a necessity into an advantage. Entirely aside from the cost needed to continue the bulge, the bulge serves one more purpose. It's open at the back and along with the two sets of hood louvers, it serves as a heat extraction point for the engine bay.
orig_jaguar_e_type_bonnet_painted_inside_view_07.jpg


On top of that, on cold days the stream of hot air out of the bulge helps keep the windscreen clear - something pretty much every other classic British sports car marque failed at due to their anemic heaters. Morgan, for example, *still* doesn't have good windscreen defrost in their Plus Four.

So, extending the bulge would have been difficult, cost them a metric butt tonne of money overall, would have made the car run hotter and worse to operate in winter. Why would this make any sense for them to do?
 
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If you have the ?600,000 for a Speedster, you can tell them to make the hood cutout resemble Camilla's riding crop if you want.
 
I understand the issue about cooling, but why not put 2 vertical pieces of metal on the flat hood to help the profile. With a car like the speedster/e-type looks are one of the main attractions after all.
 
Why nitpick such lovely cars?
 
I understand the issue about cooling, but why not put 2 vertical pieces of metal on the flat hood to help the profile. With a car like the speedster/e-type looks are one of the main attractions after all.

Because
1. Then it would look like ass from inside the cockpit, and not in a good way, and
2. Again, that would be added trouble, added expense, and 99.999999999999999999999999999999999999999999999999999999999999999999999999% of the world doesn't see a problem that needs correcting in the first place, plus
3. Heat extraction was secondary anyway and it was built by wonderfully hardheaded people - the only reason that bulge is there in the first place is so the hood will close over the engine.
 
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