[NRV Rocketry] [NRVR-Launches] Rocket Launch Announcement

Thu Jun 2 09:42:30 CDT 2011

Tweeks,

I did some simple sims using wRASP on a 3.1" dia rocket, 73 " long weighing
from 4.5 to 5.6 pounds without motor.  I should have put the results in a
spreadsheet but I was doing it at 3:00 in the morning and  was just plugging
in different AT 29 and 38 mm motors.  What I remember is:

  - H220 in a 5.6 rocket goes 879' with plenty of velocity off the pad
  - I211 in a 5.6 pound rocket went 2170'

So if everything lines up for you to make it to JMV you should have plenty
of options in H and I impulse.  I understand the manufacturers
recommendations are important, but there should be some room to adapt to
each launch site.

It is your rocket and cert so the decision is completely yours.  I'll send
you a spreadsheet with results for a light and heavy rocket on the motors I
have on hand.  If you could get a weight with all the recovery stuff that
will help dial in the estimates.  I've found wRASP to usually be 5%-10% high
in it's estimates, but generally in the ballpark and much simpler to get a
quick sim.

Bob

On Wed, Jun 1, 2011 at 11:10 PM, Chuck Neff <chuck.neff at comcast.net> wrote:

>  Tweeks,
>
>
>
> Yes, I would not recommend flying single deploy over 2,000 feet at the JMV
> site, and that’s with relatively no wind.  We haven’t flown enough there to
> really know how things will respond under all conditions, but 4,000 feet
> single deploy would definitely be too much in my opinion.
>
>
>
> What’s the empty weight of your rocket?
>
>
>
> Thanks,
>
> Chuck
>  ------------------------------
>
> *From:* Thomas Weeks [mailto:tweeksjunk2 at theweeks.org]
> *Sent:* Wednesday, June 01, 2011 12:16 AM
> *To:* Chuck Neff
> *Cc:* nrvr at nrvr.org; 'Mark Miller'; mficco at mindspring.com;
> kulcelts at verizon.net; afa2fg at msn.com; 'Eric Pyle'; 'Bob Schoner'
>
> *Subject:* Re: [NRV Rocketry] [NRVR-Launches] Rocket Launch Announcement
>
>
>
> Chuck.. not sure if I'll be able to make it to the launch this weekend or
> not after all.. Bob and I are running my talon through a simulation.. but
> with it's smallest recommended I-motor.. (unless Bob discovers otherwise) it
> would still fly at or beyond 4k feet. You were recommending no higher than
> 2k feet right? And this would be a single deploy. I don't fancy either
> chasing the thing for 3 miles.. or losing it all together. Let me know what
> you think as I've never been to this field in Jack Mountain Village near
> Monterey, Virginia.. thoughts?
>
> Bob.. please CC Chuck in your reply to be about your sim findings on that
> Aerotech motor in my Talon3 as we discussed.
>
> If anyone else has any thoughts.. please share (and while my bird is dual
> deploy capable.. it's not been outfitted or tested yet.. end there's not
> enough time right now to do so).
>
> Thanx..
>
> Tweeks
>
> On Sunday, May 29, 2011 01:24:10 am Chuck Neff wrote:
>
> > Tweeks,
>
> >
>
> >
>
> >
>
> > We'd be happy to have you attend the launch! This will be the first
> launch
>
> > we've held in a while so I know I'm anxious to get out there!
>
> >
>
> >
>
> >
>
> > In the past, we've charged $10.00 for non-members and $5.00 for members
> for
>
> > launch fees. This was to cover the monthly expenses we had associated
> with
>
> > the launch such as the porta-potty (which is about $70.00). We also tried
>
> > to keep rockets and motors on hand for the kids in attendance. Building
> up
>
> > the amount of range equipment we had was also a priority. Unfortunately,
>
> > nothing in this world is free! Then, with such a diverse range of
>
> > locations where VAST's members live, we couldn't always count on the
>
> > number of people to show to cover these expenses. I've been the only one
>
> > to make it before.
>
> >
>
> >
>
> >
>
> > So, for this launch and the fact that it's been a while and many people
> are
>
> > making fairly long drives to get there, as the launch director, I decided
>
> > to go with a set fee of $5.00 per adult for the launch fees. Kids of
>
> > course will fly free. This may change for future events, but for now it
>
> > is what it is.
>
> >
>
> >
>
> >
>
> > Since the fire department will be coming out and spending the day with
> us,
>
> > I'd like to try and collect some donations for them. A few dollars here
>
> > and there can go a long way.
>
> >
>
> >
>
> >
>
> > I hope that answers your questions concerning the range fees
>
> >
>
> >
>
> >
>
> > As for your Level 1 attempt, I'm the guy to talk to. All the clubs email
>
> > comes to me. Since I'm the Prefect, I'm the only one at the moment who
> can
>
> > sign off on cert flights. I'm Level 3 certified so can sign off on all
>
> > Level 2 flights and below. The same is true with the NAR. If it is
>
> > something you'd like to do, then the more information you can give me,
> the
>
> > better. Rocket size, motor, any design and sim work files, projected
>
> > altitude, etc. I can make a much easier decision having all the facts
> then
>
> > just pieces here and there. If you're thinking about certifying and the
>
> > June launch, please send me the information as soon as possible for my
>
> > review.
>
> >
>
> >
>
> >
>
> > We have 4 other Level 1 cert flights planned for that Saturday. Two of
>
> > them will be adult L1 while the other two will be Junior Level 1's. So,
>
> > if you'd like to fly, let's get the details worked out and go from there!
>
> >
>
> >
>
> >
>
> > Feel free to send any questions or comments you may have!
>
> >
>
> >
>
> >
>
> > Chuck Neff
>
> >
>
> > Valley AeroSpace Team - President
>
> >
>
> >
>
> >
>
> > _____
>
> >
>
> > From: Thomas Weeks [mailto:tweeksjunk2 at theweeks.org]
>
> > Sent: Saturday, May 28, 2011 11:43 PM
>
> > To: nrvr at nrvr.org
>
> > Cc: chuck.neff at comcast.net
>
> > Subject: Re: [NRV Rocketry] [NRVR-Launches] Rocket Launch Announcement
>
> >
>
> >
>
> >
>
> > Thanks for sending this out Chuck!
>
> >
>
> > I'm going to try to make the launch myself. I would like to both meet
> some
>
> > of our VAST brethren.. as well as possibly get my L1 cert flight finally
>
> > knocked out after all these years of various setbacks (from my old TX
>
> > flying days).
>
> >
>
> > If I want to get in the line up of cert launches.. who do I need to talk
>
> > to? Just that vast-info address?
>
> >
>
> > Also.. Is the launch fee the same for VAST and non-VAST members?
>
> >
>
> > Tweeks
>
> >
>
> > On Monday, May 23, 2011 09:16:36 am chuck.neff at comcast.net wrote:
>
> > > New River Valley Rocketeers and Friends,
>
> > >
>
> > >
>
> > >
>
> > >
>
> > >
>
> > >
>
> > >
>
> > > The Valley AeroSpace Team (VAST) will be hosting a Sport Rocket Launch
> on
>
> > >
>
> > > Saturday, June 4th, from 10:00 am to 6:00 pm at its launch site, Jack
>
> > >
>
> > > Mountain Village, near Monterey, Virginia (see directions/map on main
>
> > > page
>
> > >
>
> > > of our website). Rockets ranging from just a few inches to over 8 feet
>
> > >
>
> > > tall will be launched. Kids can bring and fly their own rockets or
>
> > > launch
>
> > >
>
> > > one of the available VAST rockets. The launch fee for adults is $5.00
>
> > > for
>
> > >
>
> > > the day to help cover associated costs. Spectating is of course free
> and
>
> > >
>
> > > encouraged! NOTE: A porta-potty will be on site!
>
> > >
>
> > >
>
> > >
>
> > >
>
> > >
>
> > >
>
> > >
>
> > > For those attending and wanting to fly, dual-deployment is highly
>
> > >
>
> > > recommended for all flights that may exceed 2,000 feet AGL. Level 1 & 2
>
> > >
>
> > > Certification flights (Tripoli and NAR) can be made with advance
> notice.
>
> > >
>
> > > Please e-mail vastinfo at valleyaerospace.co m m with request. You can
> also
>
> > >
>
> > > a dd your project to the Featured Projects (
>
> > >
>
> > > www.valleyaerospace.com/featuredprojects.html ) page of VAST's web
> site.
>
> > >
>
> > >
>
> > >
>
> > >
>
> > >
>
> > >
>
> > >
>
> > >
>
> > >
>
> > > Sunday, June 5th, from 10:00 am to 5:00 pm will be a Tripoli Research
>
> > >
>
> > > Launch at the same site. Again, dual-deployment is highly recommended
>
> > > for
>
> > >
>
> > > all flights that may exceed 2,000 feet AGL. Level 1 & 2 Certification
>
> > >
>
> > > flights (Tripoli only) can be done with advance notice. Per the Tripoli
>
> > >
>
> > > Research Safety Code, you must be a Tripoli member and at least 18
> years
>
> > >
>
> > > of age to fly commercial motors at a research launch. Also, only L2+
>
> > >
>
> > > Tripoli members are allowed to fly research motors. Launch fee is
> $5.00.
>
> > >
>
> > > NOTE: Sunday's launch is open for anyone to attend, but only Tripoli
>
> > >
>
> > > members over the age of 18 will be allowed to fly.
>
> > >
>
> > >
>
> > >
>
> > >
>
> > >
>
> > >
>
> > >
>
> > > Harry from The Dragon's Hoard hobby shop will be on hand with an
>
> >
>
> > assortment
>
> >
>
> > > of kits, motors, and supplies. Remember, VAST members receive a 10%
>
> > >
>
> > > discount on all rocketry related items!
>
> > >
>
> > >
>
> > >
>
> > >
>
> > >
>
> > >
>
> > >
>
> > > Please e-mail vastinfo at valleyaerospace.c om vastinfo at valleyaerospace.com
>
> > >
>
> > > with questions and comments.
>
> > >
>
> > > Thanks,
>
> > >
>
> > > Chuck Neff
>
> > >
>
> > > Valley AeroSpace Team - President
>
> > >
>
> > >
>
> > >
>
> > > www.valleyaerospace.com
>
> > >
>
> > > p.s. Feel free to pass this invitation along to anyone you think may be
>
> > >
>
> > > interested.
>
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