What if we made the payload more bullet or torpedo shaped? If it's being bounced because of drag from the top, it makes sense to reduce that. I was wondering why they put pointy ends on the EOSS payloads they pictured. That would explain it.<div>
<br></div><div>Christie<br clear="all">_______<br>"The road of excess leads to the palace of wisdom." -- W. Blake.<br><br>The outer bounds is only the beginning. <a href="http://www.flickr.com/photos/genriel/sets/72157623376093724/">http://www.flickr.com/photos/genriel/sets/72157623376093724/</a><br>
<br><br><div class="gmail_quote">On Mon, Feb 8, 2010 at 1:25 PM, Jonathan Moore <span dir="ltr"><<a href="mailto:moore@eds.org">moore@eds.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Well we should use a much longer tether next time. That would help<br>
with the effects you describe but also with other effects too.<br>
<br>
Also did any one else notice how clearly we were in two different<br>
winds during the flight. If you look at the kml file you can see that<br>
at lower altitudes we went mostly south but at upper mostly west. For<br>
people wanting to steer the balloon it seems that changing altitude<br>
might be a easy way to do it.<br>
<div><div></div><div class="h5"><br>
On Mon, Feb 8, 2010 at 1:20 PM, Michael O <<a href="mailto:m@dgmo.org">m@dgmo.org</a>> wrote:<br>
><br>
> Some discussion at lunch reminded me to mention my pet theory for why the<br>
> payload was bouncing around to much.<br>
> I'd originally assume it was wind shear layers, but the video shows it was<br>
> moving around fairly violently for pretty much all the ascent.<br>
><br>
> So my new theory is that having a 7ft+ balloon rising at a pretty decent<br>
> pace leaving a bunch of turbulent air beneath it which the payload is being<br>
> dragged through.<br>
><br>
> This makes adding fins or suchlike to the payload a non-starter I think.<br>
> It'll just make it even more affected by the turbulence.<br>
> So now I'm back to having no idea how to usefully stablize the payload.<br>
><br>
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