03-20-2017, 12:32 AM
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Master Modeler
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Join Date: Jan 2009
Location: Fairbanks, Alaska
Posts: 6,507
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Quote:
Originally Posted by bernomatic
Thanks for the assist on both accounts. I don't know why when I saw that it was min. dia I assumed it was BT 5 based, but I did.
Thanks for the help.
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Hmmm...a down-scaled Astro, based on BT-5 tubing and the Gnome kit's plastic nose cone (which has the same 4:1 tangent ogive shape as the Astro's BT-20 plastic nose cone [which is also used in the Viking and Wizard kits]), would also make a nice kit for school and youth group projects, as well as for individual model rocketeers. The BT-5 Astro could use 1/16" or 3/32" thick sheet balsa fins or 0.050" thick fiber ("Beveridge board"--Centuri spelled fiber as "fibre" to be fancy :-) ) fins. (Computer printer paper-laminated 1/16" sheet balsa fins would look great and make the fin finishing & painting much easier, while also producing tougher fins.)
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