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Old 01-20-2023, 04:19 PM   #1171 (permalink)
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This is not ecomodder-typical, but....

Hoonipigasus aero

Very good explanations of the whys and wherefores of the aerodynamic details, barge board, etc. One thing I noticed, was the rear difusser starts at the driver seat. The first pictures I posted on Ecomodder were of a VW Beetle that had an underfloor that the seat (old EMPI fiberglass rear buckets) was recessed into, but it appears that I still have an account on Imgur, but it's empty.

On the topic of NACA ducts, he calls out one at 14:32 but it's not, it's more of a nostril. There's no flat rear edge.

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Old 01-21-2023, 12:49 AM   #1172 (permalink)
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Not sure how worse aerodinamically-wise is the roof-mounted air conditioner in this Mercedes-Benz truck, yet the air inlet for the condensers could've been improved...
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Old 01-24-2023, 03:20 AM   #1173 (permalink)
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Not sure how worse aerodinamically-wise is the roof-mounted air conditioner...
That's the least of the problems, it's not even the full width of the roof.



Contrarotating props fail for commercial airliners because of the excessive noise. but here is a setup that has the efficiency (up from Mach 0.55 to 0.80) but is as quiet as the newest high-bypass fanjets. It is done with a variable pitch stator.
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Old 01-26-2023, 05:09 AM   #1174 (permalink)
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Quote:
Originally Posted by freebeard View Post
That's the least of the problems, it's not even the full width of the roof.
Just like those swamp-coolers I often see in trucks, it's meant to be fitted at the stock location of a venting hatch on the roof.


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Contrarotating props fail for commercial airliners because of the excessive noise
People tend to see propellers in general as "outdated" and jets as modern, and this often leads some to believe an Embraer regional jet to be better suited to routes which an ATR could serve better.
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Old 01-27-2023, 05:29 PM   #1175 (permalink)
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Wouldn't want to see this coming at me.


justacarguy.blogspot.com/2023/01/westland-pterodactyl-iv-k1947.html

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