Since things were a little slow this afternoon, I caught up on some reading of feebie magazines I get at work. In the 11/22/04 issue of "Design News", in a regular column called "Gadget Freak", there are plans for a model rocket altimeter by Jerry Baumeister. They provide a parts list and a link for more details:
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which will direct you to this link:
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. I don't know whether it will prompt you for a free subscription to DN, since I probably have some sort of cookie set. In the paper, Jerry lists this link
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which is evidently his home page with more plans.
Pretty interesting stuff. Nice to see some good exposure of the sport in a trade magazine too.