<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=us-ascii">
<META content="MSHTML 6.00.2800.1400" name=GENERATOR></HEAD>
<BODY bottomMargin=0 leftMargin=3 topMargin=0 rightMargin=3>
<DIV> </DIV>
<DIV> </DIV>
<DIV>On Fri, 14 May 2004 09:38:19 -0700 "Skinner, David" <<A
href="mailto:david.skinner@lmco.com">david.skinner@lmco.com</A>>
writes:</DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-LEFT: 10px; MARGIN-LEFT: 10px; BORDER-LEFT: #000000 2px solid">
<DIV><SPAN class=055221916-14052004><FONT face=Arial color=#0000ff
size=2>Jack:</FONT></SPAN></DIV>
<DIV><SPAN class=055221916-14052004><FONT face=Arial color=#0000ff
size=2>Sorry I took so long to respond to your message, but I have an idea.
Many years ago for a Boy Scout Expo I help with a group that did model rocket
launches indoors by stringing a wire from the floor to a fixed point in
the rafters of the building we were using. As I recall the height was only
about 50-75 ft but we adjusted the size of the motor (which are very
consistent) we used to ensure the rocket did not hit the end of the wire
and used a minimum delay charge to deploy the chute.The effect was that
we accomplished any entire flight sequence with in the vision of the audience
and the rocket returned (by parachute of course) to the exact spot it was
launched from. In short it work amazingly well, we flew all day about
every 30 min and had no incidents at all. The only modification I would make
is to use a metal launch lug to reduce any wear and tear. I would also
recommend setting up prior to the event so that a few test flights could be
run to verify the setup. I don't know if the sponsors of the event would
consider allowing this, but I do believe it could work (kinda like the new
Estes rocket dragster only vertical). O well just a through, Let me know what
you think.</FONT></SPAN></DIV>
<DIV><SPAN class=055221916-14052004></SPAN><SPAN
class=055221916-14052004></SPAN> </DIV></BLOCKQUOTE>
<DIV> </DIV>
<DIV>Hi David -</DIV>
<DIV> </DIV>
<DIV>I'm sure by now you've seen that all pyrotechnics have been banned from
this event outside due to an endangered bird that nests near the ship. Inside it
will just be too crowded with booths and people. I know this last part because
they were going to do an electric RC airplane demo inside. Normally there would
be plenty of room on the hangar deck, but not with all the exhibits. </DIV>
<DIV> </DIV>
<DIV>I know you point out that there were no incidents, but you should note that
the hangar deck is not anywhere near that tall. Maybe down at NASA Ames inside
one of the big hangars!</DIV>
<DIV> </DIV>
<DIV>- Jack</DIV>
<DIV><BR>Jack Hagerty, ARA Press <BR>www.arapress.com<BR>Phone/fax (925)
455-1143<BR></DIV></BODY></HTML>