Re: Science Olympiad Helicopter

From: art <aholt11552_at_bellsouth.net>
Date: Thu, 17 Feb 2011 18:01:00 -0000

Hi, group...

This is my first posting.

I just finished my River City Rocket, a little on the heavy side, but that's just me. My first timed flight, under a 13 foot ceiling, was 1:11 on about 375 turns.

The first posted plan showed a 40 cm motor stick and I had to run to the craft store to get a stout enough log to keep it from bending under the specified 8" loop of 3/16. When he revised the stick to 12" I just chopped 3.75 off one end and then slimmed the stick down a bit. The wood in the kits will be more carefully selected.

The great thing about the machine isn't so much the rocketlike climb, reflected in the name, but the stability. It can be upset, flip inverted, an as long as it has some rubber left it'll right itself and climb back up for more. Baffles me how it does that.

Art.
Received on Thu Feb 17 2011 - 10:01:09 CET