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Author Topic: Nemesis II airfoil  (Read 330 times)

Offline Mike Greb

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Nemesis II airfoil
« on: June 07, 2020, 06:20:55 PM »
Does anybody know what the Nemesis II airfoil?  I have been trying to generate it with a naca generator but just can't get it right.   


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Offline pmackenzie

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Re: Nemesis II airfoil
« Reply #1 on: June 07, 2020, 09:04:12 PM »
Howard probably knows  ;)

Try 00 series, 16.5% thickness and move the high point from 30% to 25%
I did that with compufoil, and it looks extremely close when I put it on top of the plan airfoil from the pdf

A bit different between the LE and the high point, but probably within sanding error.

(I don't have the dxf generator option of Compufoil, so this was from a dat file and lacked LE points)
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Offline Reptoid

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Re: Nemesis II airfoil
« Reply #2 on: June 07, 2020, 10:12:18 PM »
Actually, I believe it was from the Eppler family but not sure which series. Howard will probably chime in
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Online Fredvon4

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Re: Nemesis II airfoil
« Reply #3 on: June 08, 2020, 11:44:33 AM »
I have two Nemesis II by Pat Johnston laser cut short kits and a set of plans from Howard Rush if interested...I can never build them
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Online Howard Rush

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Re: Nemesis II airfoil
« Reply #4 on: June 08, 2020, 12:46:56 PM »
Try 00 series, 16.5% thickness and move the high point from 30% to 25%

Thatís it.
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Offline Mike Greb

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Re: Nemesis II airfoil
« Reply #5 on: June 09, 2020, 12:03:39 PM »
Howard told me it was naca 0016.5 with the high point moved forward to 25%.  I tried to copy it from an old m+p plan into compufoil,  but the back 3/4 looks not quite as thick as on the Nemesis II final.pdf that Howard sent me.


On a side note, I am trying to cut and print  portions of that plan in inscape but it does not seem to print out.   Maybe the lines too thin?  I have been able to print out portions of other plans that have been scanned from inked drawings just fine.

Offline pmackenzie

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Re: Nemesis II airfoil
« Reply #6 on: June 09, 2020, 03:56:59 PM »
If you have compufoil, here is the template file for the one I did.
(delete the .doc extension, it was added to allow it to be uploaded here)



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