Saturday, April 21, 2012

Centuri Vulcan Build Part 1 Parts


This is another I wanted to build since first seeing it in the 1971 Centuri catalog.
Definitely different, a combination of conical stability and card stock wedge fins.

PDF Prints and Centuri instructions available from JimZs at:
http://www.spacemodeling.org/JimZ/ka-10.htm

For a great design variation, check out the "Black Vulcan" HERE
Thanks go out to Chris Gonnerman

Parts:
Body Tube - 9" ST-7 Semroc
Nose Cone - Original was Centuri PNC-70 1 1/2" long Tip to Shoulder
You could use:
1.75" Apogee PNC-18B
fits ST-7 tube very well, hollow for clay nose weight
or:
1.5" BC-715 Semroc
Balsa Equivalent to Centuri PNC-70, needs washer weights added.

I went with the Starlight nose cone from the spare parts box. Those nose cones are available now from Apogee. This nose cone is a little longer than the 1 1/2" long original. Made for the BT-20, it fits the ST-7 tube very well.
The picture shows an engine hook, I didn't use it, opting for a wrap of masking tape around the end of the engine for retention.

The original had a smaller launch lug glued underneath a wedge fin. This would put the lug at an angle, down the conical body side.

I tried for a central lug, down the 9" long motor mount tube.

Spray the printed cardstock sheets with clear acrylic to keep them clean when building and flying.

The rear plate is already glued to a piece of thick mat board.

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