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Old 08-19-2020, 02:00 PM   #21 (permalink)
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7) to get 33-pounds of thrust.
The fan only comes on momentarily for hard braking, maybe one of the other [of six IIRC] modes.

Thrust was the second or third effect. Mainly it's a pneumatic amplifier that turbo-charges the diffuser. Suction on demand. If you embiggen the illustration in Permalink #13, you see there is air drawn out of the rear wheelwell. Not sure what that 's about.

Did you pay for the magazine? On Youtube you can see Gordon Murray talk about it for hours for free.

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Old 08-19-2020, 03:31 PM   #22 (permalink)
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fan

Quote:
Originally Posted by freebeard View Post
The fan only comes on momentarily for hard braking, maybe one of the other [of six IIRC] modes.

Thrust was the second or third effect. Mainly it's a pneumatic amplifier that turbo-charges the diffuser. Suction on demand. If you embiggen the illustration in Permalink #13, you see there is air drawn out of the rear wheelwell. Not sure what that 's about.

Did you pay for the magazine? On Youtube you can see Gordon Murray talk about it for hours for free.
1) Murray says fan is for boundary layer control. Borrowed from Ludwig Prandtl at the AVA Gottingen, 1920s, Germany.
2) It doesn't come free.
3) At around $ 2.6-million, buyers won't care.
4) I have a subscription. It's my form of 'wireless' connection.
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Old 08-22-2020, 03:01 AM   #23 (permalink)
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Originally Posted by aerohead View Post
Please bear in mind that, with a proper fastback roof contour, the effective static pressure acting over the rear of the greenhouse is at the highest pressure of all roof profiles.
Just having a quick look at the forum.

(My emphasis added to above quote.)

This is absolute rubbish. Just go and measure some car profiles and see for yourself. Honestly, saying something again and again doesn't make it true!

A fastback contour, compared to say a squareback, has far more lift.
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Old 08-22-2020, 08:59 PM   #24 (permalink)
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Originally Posted by JulianEdgar View Post
Just having a quick look at the forum.

(My emphasis added to above quote.)

This is absolute rubbish. Just go and measure some car profiles and see for yourself. Honestly, saying something again and again doesn't make it true!

A fastback contour, compared to say a squareback, has far more lift.
You get that we come here to learn AND have fun, right? Yeesh.
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Old 08-22-2020, 09:06 PM   #25 (permalink)
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You get that we come here to learn AND have fun, right? Yeesh.
Sorry, but I have this really weird idea that misinformation being spread isn't beneficial to people, and should be called out.

Strange, I know, that I don't want to see people being continually mislead.
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Old 08-22-2020, 09:27 PM   #26 (permalink)
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Sorry, but I have this really weird idea that misinformation being spread isn't beneficial to people, and should be called out.

Strange, I know, that I don't want to see people being continually mislead.
Sanctimonious irony just gets in the way of an actual discussion.
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Old 08-22-2020, 09:46 PM   #27 (permalink)
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Sanctimonious irony just gets in the way of an actual discussion.
Avoiding the point being made just continues the misinformation by implicit endorsement of it.

When you've spent literally thousands of hours personally modifying cars at home, you realise that wilful spreading of misinformation about car modification is disgusting.

I think about half of what Aerohead writes here is simply wrong, is misleading or is irrelevant. (In fact, maybe more than half, when I think about it.)
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Old 08-22-2020, 10:12 PM   #28 (permalink)
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Avoiding the point being made just continues the misinformation by implicit endorsement of it.

When you've spent literally thousands of hours personally modifying cars at home, you realise that wilful spreading of misinformation about car modification is disgusting.

I think about half of what Aerohead writes here is simply wrong, is misleading or is irrelevant. (In fact, maybe more than half, when I think about it.)
You have said all this repeatedly in other posts. Why say it again and again and again? We're not here to attack particular people, which seems to be the only reason you have returned after more than two months. When you left, it was immediately after you (and aerohead) were asked by several of us to try and make a truce. Personally, it begins to look a lot like harassment, and I would ask the moderators to consider whether it violates any forum rules. If you want to write about vehicle modifications and to correct what you see as errors, then go ahead. There is no place for this repeated outpouring of disdain, mockery, and insult directed at this one member of the forum over and over. Everyone here knows that there are areas of modification that you are expert in, but for me, if you cannot share that without this battering and personalized rhetoric, then I would rather you not come back.
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Old 08-22-2020, 10:23 PM   #29 (permalink)
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You're a good exponent of what you decry. I called out a mistake and in response, rather than explore the mistake, you suggested that I should not have done so.

I called back into the forum for two minutes, immediately saw multiple mistakes being promulgated, and called them out.

I will never understand how some people are happy to see erroneous information being disseminated.

I'll leave you to it.
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Old 08-23-2020, 10:18 AM   #30 (permalink)
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It's pretty unrealistic to call an idea rubbish and expect a positive response.

In such disagreements, most of us like to see the reasoning and science behind the different lines of thought. That's what I value, anyway.

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