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Tuesday, October 5, 2010

Wolverine Downscale "How To" Part 6 Nose Cone

After checking the Semroc website, I found there isn't a BT-5 sized Ram-Jet nose
cone available.
One will be made from an exisiting nose cone.

The downsized nose cone will end up being just under 1 1/2" tall (from the shoulder to the tip) or 1.46" tall.

Measure down 5/16" from the top of the Semroc BNC-522P, Sand to the shape shown at the right, removing the gray shaded area.

Cut off the tip at the 5/16" line. You might cut it a little lowerr than 5/16" to allow for sanding the cut side smooth.

Cut the base at 1 5/32" up from the shoulder. Again, you can cut it a little longer for sanding.

The middle gray section will be thrown away.

The tip is centered and glued to the cut off top.

Try to get close to the 1 1/2" exposed length. Nobody is going to measure it and tell you it's incorrect.
If someone does, you're probably hanging out with the wrong rocketry crowd.

2 comments:

  1. Actually, Semroc does have a BT-5 ramjet cone, though it has a different profile than yours:

    http://www.semroc.com/Store/Scripts/prodView.asp?idproduct=708

    ReplyDelete
  2. Hi Chris,
    I did see that shorter ram-jet nose cone, but the original Wolverine design called for something quite a bit longer for the downscale.

    Thanks!

    ReplyDelete