TRA sanctioned Research launches - Northern Colorado Rocketry

This topic has 24 replies, 10 voices, and was last updated 18 years, 9 months ago by James Russell.

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November 23, 2006 at 2:05 am #43383
denverdoc
Con.

Well put. I mean this stuff is not nitro, under the worst conditions goes bang from over pressurization, much like a soda can in a freezer. But it’s not a self propogating explosion in its own right. Usually things pop off to vent the excess pressure. I know of no instance where a reasonably prepared APCP propellant became a “grenade” spewing shrapnel, etc at high velocities.

For those with misgivings, stand back 😆 I’ve seen a small number of ex launches compared to many who posted on this thred–maybe a few hundred. The only time I felt scared was on the range of Balls, 2005. Jim Amos and many crew were setting up the wimpy Q. While doing so. a smaller rocket was launched closer into te crowd. The motor worked fine. Just thr rocket came apart and heavy objects rained down. Lots of birds that day suffered wind shear failures.

My point is like everyone’s: rocketry is dangerous, period. Big rockets more so! Extreme projects even more so. But the difference between Ex and Commersh is not great. But observe the range safety rules!! Thats what key in our enerprise.

John S
November 27, 2006 at 4:30 am #43384
Warren B. Musselman
Moderator
Given that we have over 85% of the club either for Research launches or positively disposed towards them and only 13% against, I think the results of the vote at the annual meeting are pretty clear. NCR IS a Tripoli prefecture and it’s high time we recognize that fact and start sanctioning Research launches. These will not conflict with our regularly scheduled monthly launches but will be in addition to them.

Personally, I want to thank all those who partipated in the online poll here on the site. With over 118 replies, this has been our most well-responded to poll.

Warren
November 27, 2006 at 5:03 am #43385
James Russell
It will be nice to start having research launches up north, it will open the door for a lot of things for a lot of people. I hope that this will do to NCR what it has done to T-C, we have a real great club up there and they are all close and talk about things and just seem more family like then NCR is today. NCR was like that when I first started flying up there but has changed over the years.

JamesR
November 27, 2006 at 5:19 am #43386
Conway Stevens
Participant
I must admit I like seeing that people as per the poll are more for research. Really it in all honesty can brig really good things.

People should not think of Reserach as a regresive step but a forward step into the next level.
December 12, 2006 at 12:57 am #43387
denverdoc
Someone refresh my memory–I know its been posted before, but bear with me as I want to have all my ducks in a row: for the sake of argument, we get a Research day or two during the upcoming year. Also we have the call-in 30K waiver, is there any difference in simmed altitudes one has to present to TRA BOD for commercial vs research if its over 25k.
JS
December 12, 2006 at 12:57 am #43388
denverdoc
I must admit I like seeing that people as per the poll are more for research. Really it in all honesty can brig really good things.

People should not think of Reserach as a regresive step but a forward step into the next level.

hey some of us like those regressive burns 😉
JS
December 12, 2006 at 1:15 am #43389
James Russell
Things are in the works but it is not for sure. NCR needs to get there wavier in place for the next year and then once dates are set for events that will require or may require the 30K window they will be applied for. The research thing will need to be discussed at the meeting and then up to the Prefect and club officers as to if and or when we will be able to engage in the research part of TRA as a club. Do not get impatient, there are people working on this and there seems to be a great interest in it. Lets not get the cart before the horse here, we need to get the research part going and then look at the waiver. To my knowledge no one has gone over the 25k but I think only 1 person has been over the 20K. Do not get me wrong, I am wanting to fly research and use the window but I am more concerned about getting research going and seeing the club move in new directions.

JamesR
December 12, 2006 at 1:37 am #43390
denverdoc
James,
Understand and I don’t want to push things by applying for a flight that may create some tension. So I’m gonna fly commercial motors in mid-life crisis to just as high as I can w/o breaking waiver. And use a small Research motor in the Black Brant sustainer if allowed.
JS
December 21, 2006 at 12:55 am #43391
Jeffrey Joe Hinton
Moderator
If I read your question correctly – NO. ANY flight, research or commercial that is going above the 25 K needs approval. The maximum launch altitude of a research flight shall be 75% of the waiver altitude established for the launch.
December 21, 2006 at 1:49 am #43392
James Russell
and that goes for commercial or research motors:

9.9.1 The maximum launch altitude of a research flight shall be 75% of the waiver altitude established for the launch.
9.9.1.1 The BOD may waive this requirement when it can be demonstrated (by past performance, actual thrust curves, etc.) that the performance of the motor(s) to be used shall not exceed the limits of the waiver.
9.9.1.2 Computer simulations without actual thrust data derived from one or more actual test stand firings shall not satisfy the requirements of 9.9.1.1.
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Proven flight data with a particular rocket and motor combination could work.
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