[roc-chat] Re: Question for Altitude Junkies

  • From: Kurt Gugisberg <kurtgug@xxxxxxxxxxxxx>
  • To: roc-chat@xxxxxxxxxxxxx
  • Date: Sat, 16 Apr 2011 08:59:09 -0700 (GMT-07:00)

Not sure if Matt Campbell got back to you but he did a test in a vacuum chamber and found the secret to bp at altitude is proper containment.  I've used it up to 34K without a problem.  Sent one to 50K at Black Rock last year but the apogee fail to fire.  However,  I think it was a wiring issue.  I wanted to have a disconnect for the ematch wire so I just twisted them together, not in the best way I am thinking now.  I think my twist connection came undone under high gee load.  Main fired at 1000 feet so it came in ballistic until then.  My apogee charge was lost after that so I have no way of knowing if it fired or not.  Rocket was recovered with only a bad zipper.

Kurt

-----Original Message-----
From: Troy Monroe Stacey
Sent: Apr 14, 2011 12:46 AM
To: roc-chat@xxxxxxxxxxxxx
Subject: [roc-chat] Question for Altitude Junkies


Hello Club,

This question is for those of you that have flown to 25k or higher. I have some friends that are planning a high alt flight to the 25k mark with a rather large vehicle (85 pounds dry) and was wondering if there are any other concerns to watch for when going that high? Personally I've only been to about a mile, so I don't know what strange things happen beyond that - like I know BP starts to burn weird (or not at all) up around 100k, but I think 25k is okay - what else? Any advice is appreciated. Thanks.


-Troy    =)

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On Apr 13, 2011, at 11:47 PM, Greg Lyzenga wrote:

Hello ROC Members and Friends:

This notice is to remind you all that in less than two months, June 10-12, 2011, ROC will be hosting the NAR annual National Sport Launch at Lucerne Dry Lake.  Since this event takes the place of our regular June ROC-Stock, most of you already have this event on your calendars and are planning to attend.  However we would like to point out some special things about this launch that require your attention now.

Unlike a regular ROC-Stock, this national event involves a banquet for participants and attendees, as well as a variety of commemorative items such as hats and shirts.  Although paid ROC members can fly for free just as at any ROC-Stock, pre-registration is required to purchase banquet tickets and commemorative items.  We have not had many registrations yet, which raises concerns about our ability to plan properly.  So if you're planning on coming to NSL (or know someone who is) please visit the NSL registration site NOW:


Note that you can access registration and items for purchase from the drop-down menu under "Catalog & Registration".  We're hoping for a big response so we can offer a great event as a follow-up to last year's highly successful LDRS, so spread the word!

And while you're marking your calendar, please reserve Saturday, May 21 for our ROC Trailer Cleaning Party!  We'll need a lot of help to get all our equipment shipshape for NSL, so this is a great and fun opportunity to give back to the club.  Stay tuned for further announcements regarding this tentative date.

One last thing... if you are a vendor interested in participating in NSL, we want you!  Please see the vendor registration link on the NSL website.
See you all out at Lucerne!

                - ROC Board of Directors

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Greg Lyzenga
ROC Vice President - NAR #13295 / Tripoli #12088


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