<div dir="ltr">Gyroscopes?<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Sun, Sep 8, 2013 at 12:27 AM, Thomas Weeks <span dir="ltr"><<a href="mailto:tweeksjunk2@theweeks.org" target="_blank">tweeksjunk2@theweeks.org</a>></span> wrote:<br>
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<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">Hey Dr. S, or other VT Aerospace Guys..</p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"></p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">So I've been watching LADEE footage from the launch last night and was just wondering.. how do they stabilize large rockets like LADEE that obviously have zero visible fins? Ballistically (if it flew passively) it should go end over end.. no?</p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"></p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">Are there ANY control surfaces on the LADEE boosters? I imagine they would have to either use some sort of active vectored thrust, control surfaces, or spin stabilization to keep it pointed up... no?</p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px"></p>
<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">And what about controlling the % thrust? They're using solid propulsion motors (sort of like our HP ACP motors)... which are usually either 100% on or burned out/off right? Do they have some sort of burn-rate or oxidizer flow rate controls in their motors too? </p>
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<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">Hmm.. </p>
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<p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">Tweeks</p></div><br>_______________________________________________<br>
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