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Author Topic: "Typical" Cd and frontal area for a streamliner?  (Read 1950 times)

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Offline SteveM

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"Typical" Cd and frontal area for a streamliner?
« on: January 14, 2016, 12:08:46 PM »
OK - I know this question is extremely "general" in nature, but I just want to play around with some numbers for a smallish streamliner (not a 4 engine, 4WD type of beast), just a smallish to medium sized 'liner.

Can anyone provide a guesstimate of Cd for a decently aerodynamic streamliner?  Is something like 0.15 reasonable?

Frontal area?  How about a conservative guess of 10 square feet?

Steve.
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Offline Dynoroom

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Re: "Typical" Cd and frontal area for a streamliner?
« Reply #1 on: January 14, 2016, 12:14:38 PM »
According to it's SAE Paper the Goldenrod was 0.11 & about 8 feet of frontal IIRC
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Michael LeFevers
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Offline jacksoni

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Re: "Typical" Cd and frontal area for a streamliner?
« Reply #2 on: January 14, 2016, 12:22:25 PM »
Mike just beat me to that answer. The article written by Walter Korff is SAE 660390. Great reading.

Many current cars are much smaller in frontal area. Mine was closer to 6 ft^2
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Jack Iliff
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stwheeler

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Re: "Typical" Cd and frontal area for a streamliner?
« Reply #3 on: January 14, 2016, 02:41:08 PM »
Sam Wheeler's bike frontal area for the E-Z-Hook bike is: AERODYNAMICS FRONTAL AREA, 3.62 SQ. FT., DRAG COEFFICIENT .1007
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