06-06-2020, 05:33 PM
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#3441 (permalink)
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I know it doesn't have wheels, but is it worth a new thread?
https://www.motionrc.com/products/fr...5-wingspan-pnp
I was always a fan of the Republic SeaBee. This is a similar airframe. Also a fan of the Prandtl-D wing. It has washout at the wingtips to reduce or eliminate tip drag. Airliners use vertical rudderlets. This seems to be similar, with a swept back tip that prolly washes out.
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06-06-2020, 05:51 PM
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#3442 (permalink)
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Wingtip washout is usually very hard to see, but easy to create with minor adjustments to the angle of the airfoils. After much testing, there is a small advantage shown for the "Finch tip" - a wing that tapers to a point, with a slightly swept back tip. That minimizes induced drag by pushing down gently near the wingtips, but without the wasted surface area of washout on a square or rounded tip.
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06-06-2020, 07:32 PM
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#3443 (permalink)
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As I said, Seabee fan. The modern iteration is the Icon A5. I'm imagining something like this as a high-wing and with the sponsons pushed forward to make a [stall resistant] canard.
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06-06-2020, 08:14 PM
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#3444 (permalink)
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I like the tip feathers of birds that make use of the wingtip vortices to create thrust. There's an intriguing mention of it in one of the aircraft aero books I have.
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06-15-2020, 01:05 PM
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#3445 (permalink)
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06-15-2020, 11:47 PM
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#3446 (permalink)
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The Nardi Giannini 750 Bisiluro sure is a strange one:
Nardi Giannini 750 Bisiluro - Land Speed Racing History |
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06-16-2020, 12:12 AM
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#3447 (permalink)
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Quote:
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Originally Posted by TFA
Sadly during the race it was built for, the 1955 Le Mans, the Bisiluro was literally blown off the track by the vortex kicked up by a close-passing D-Type Jaguar and sustained too much damage to continue the race.
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Quote:
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Originally Posted by GreenTDI
Quote:
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Originally Posted by samwichse
Does this one count? When you've got a big family, but don't want the crappy gas mileage most 3 row SUVs and minivans get...
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Interesting
Wonder if that long version has even better streamline! |
Here's a Geo Metro configured as a race car transporter.
I forget the numbers but IIRC better than stock.
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06-18-2020, 09:23 PM
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#3448 (permalink)
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06-19-2020, 12:27 PM
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#3449 (permalink)
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strange
Quote:
Originally Posted by The Toecutter
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Around 1947? there was a 'twin-boom' Tarf, competition car which was similar in appearance and a claimed Cd 0.11 or something like that. Definitely outside the box thinking! I like it. 
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06-19-2020, 01:14 PM
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#3450 (permalink)
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