half DVD fins

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nils
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half DVD fins

Postby nils » Sun Sep 24, 2017 4:40 am

My friend works at DVD factory. I got some half DVD-s(0.6mm) and used them as fins on my rocket.
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SpaceManMat
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Re: half DVD fins

Postby SpaceManMat » Sun Sep 24, 2017 9:14 am

Neat idea, was expecting from the title to see very shiny fins.
QRS: 124
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Highest Altitude: 13,647 feet
Fastest Flight: Mach 1.55
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nils
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Re: half DVD fins

Postby nils » Sat Oct 07, 2017 4:28 am

These half DVD-s were not metallized so I painted them to make them visible. Next time he will bring me metallized ones.
This rocket on the picture is now completely broken. I used a paint that made polycarbonate fins and fibreglass body tube very very weak.
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krusty
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Re: half DVD fins

Postby krusty » Tue Oct 10, 2017 3:30 pm

Did you get much/any flutter with the DVDs?

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Kryten
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Re: half DVD fins

Postby Kryten » Wed Oct 11, 2017 2:42 pm

SpaceManMat wrote:Neat idea, was expecting from the title to see very shiny fins.

Yep - me too.
Otherwise, I don't see the point of using non-conventional materials of construction
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nils
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Re: half DVD fins

Postby nils » Thu Oct 12, 2017 4:20 am

These fins are very strong and stable when not painted with solvent based paint. Now I tried to use sandpaper to make them matte and visible. 3 and 4 fins version is also very easy to transport on a car rear seat.

krusty wrote:Did you get much/any flutter with the DVDs?

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