05-23-2021, 02:50 PM
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#781 (permalink)
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.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
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.Three conspiracy theorists walk into a bar --You can't say that is a coincidence.
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05-23-2021, 07:34 PM
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#782 (permalink)
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It's all about Diesel
Join Date: Oct 2012
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Quote:
Originally Posted by freebeard
Did you mean the Catalina?
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No, I meant the Dornier Do-J Wal flying boat. The first commercial aircraft registered in Brazil was one of such type, christened Atlântico. It was built in 1925, incorporated into Varig in 1927 and sold for scrap in 1933. One of its propellers used to be stored at the defunct Varig Museum in Porto Alegre, but its whereabouts are unknown after the bankruptcy of Varig, even though some old engines from other aircraft have been displayed in the same place a DC-3 which used to be operated by Varig is also displayed.
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The Following User Says Thank You to cRiPpLe_rOoStEr For This Useful Post:
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05-28-2021, 09:38 AM
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#783 (permalink)
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George
Architect, Artist and Designer of Objects
2012 Infiniti G37X Coupe
1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft
You cannot sell aerodynamics in a can............
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05-28-2021, 11:11 PM
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#784 (permalink)
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It's all about Diesel
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Quote:
Originally Posted by kach22i
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Would be nice to test-drive it.
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06-03-2021, 04:29 AM
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#785 (permalink)
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Master EcoModder
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Woke means you're a loser....everything woke turns to ****.
Donald J Trump 8/21/21
Disclaimer...
I’m not a climatologist, aerodynamicist, virologist, physicist, astrodynamicist or marine biologist..
But...
I play one on the internet.
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06-03-2021, 05:20 PM
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#786 (permalink)
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I like it. It has a battle jitney air to it.
Here's an oddity. Could be applied to a car (aerial antenna).
https://duckduckgo.com/?q=scruton+strake
I found it in a story on the Rio-Antirrio Bridge
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.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
____________________
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.Three conspiracy theorists walk into a bar --You can't say that is a coincidence.
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06-03-2021, 05:42 PM
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#787 (permalink)
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It's all about Diesel
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Quote:
Originally Posted by redneck
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Looks quite like a croaker.
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06-07-2021, 02:09 AM
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#788 (permalink)
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Master EcoModder
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Quote:
Originally Posted by freebeard
Here's an oddity. Could be applied to a car (aerial antenna).
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My Chevy S10 pickup truck has a radio antenna with Helical Strakes.
I think it's aftermarket, was there when I bought the used truck ten years ago.
I've always wondered about it, will take a photo later and see if it actually qualifies.
__________________
George
Architect, Artist and Designer of Objects
2012 Infiniti G37X Coupe
1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft
You cannot sell aerodynamics in a can............
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06-07-2021, 03:35 AM
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#789 (permalink)
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EcoModding Lurker
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Quote:
Originally Posted by freebeard
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That is interesting but I didn't really understand this bit from the linked wiki article:
Quote:
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For maximum effectiveness in suppression of vortices caused by air flow, each fin or strake should have a height of about 10 percent of the cylinder diameter. The pitch of each fin should be approximately 5 times the cylinder diameter.
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What exactly do "height" and "pitch" mean here?
I can guess that pitch means the vertical difference between 2 bits of the fin, but them what is the height? Do they mean the width of the fin, measured radially from the outside edge of the central cylinder to the outer edge of the fin?
Maybe it is the way my mind works, or maybe it is my total lack of engineering knowledge, but to me the article would be much easier to understand if it included a diagram to show these measurements. |
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06-07-2021, 04:00 AM
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#790 (permalink)
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Master EcoModder
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__________________
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.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
____________________
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.Three conspiracy theorists walk into a bar --You can't say that is a coincidence.
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