[RocketsNW] Wind Dummy

[Greg Deputy]

Well now you're getting away from David's design criteria.  From what he was saying, sounds like he was thinking something closer to disposable.  75mm hardware doesn’t fit that, in my mind.  

> -----Original Message-----
> From: Marty2 [mailto:MartyWeiser at comcast.net]
> Sent: Monday, April 13, 2009 1:25 PM
> To: clappfamily at comcast.net; 'Greg Deputy'
> Cc: 'OROC List'
> Subject: RE: [RocketsNW] Wind Dummy
> 
> I would think a 75 mm single deploy would be the optimal bird for this.  It
> would be light enough so the chute does not have to be huge and can reach 20K+
> on an M motor.  You would need minimal electronics to deploy the chute - a
> timer would do, but an altimeter would be better.  You would also want to
> install electronic tracking since it is apt to drift a long way.
> 
> Marty
> 
> -----Original Message-----
> From: rockets-bounces at rocketsnw.com [mailto:rockets-bounces at rocketsnw.com] On
> Behalf Of clappfamily at comcast.net
> Sent: Monday, April 13, 2009 1:12 PM
> To: Greg Deputy
> Cc: OROC List
> Subject: Re: [RocketsNW] Wind Dummy
> 
> 
> 
> Maybe an Airframe for those EX'ers who are always trying to find a rocket so
> they can test a motor.
> 
> 
> 
> Rick
> 
> 
> ----- Original Message -----
> From: "Greg Deputy" <greg at blastzone.com>
> To: "Dave Proffitt" <bigrockets at verizon.net>, "OROC List"
> <rockets at rocketsnw.com>
> Sent: Monday, April 13, 2009 12:43:28 PM GMT -08:00 US/Canada Pacific
> Subject: Re: [RocketsNW] Wind Dummy
> 
> Something with a 5" airframe?  Gonna take a lot of G80's to get that up in the
> higher wind levels.  :)
> 
> > -----Original Message-----
> > From: rockets-bounces at rocketsnw.com
> > [mailto:rockets-bounces at rocketsnw.com]
> On
> > Behalf Of Dave Proffitt
> > Sent: Monday, April 13, 2009 12:22 PM
> > To: OROC List
> > Subject: [RocketsNW] Wind Dummy
> >
> > Oh no here goes Dave again. I was sitting here looking out my front
> > window
> at
> > Wildcat Mountain. It's real up close and personal being basically
> > right
> across
> > highway 26 from me. I was watching the mist creep up slope and it
> > reminded
> me
> > of my days as a hang glider pilot. We used to plant wind flags about a
> wing
> > span and a half out of the middle of the launch areas so we could try
> > and
> get
> > a "into the wind" launch. I used to fly a place near Morton Washington
> called
> > Dog Mountain. Lots of times we would get up there and no one was in
> > the
> air
> > yet. If it was marginal for soaring nobody wanted to be what hang
> > glider pilots called "A wind dummy."  If you know the site pretty well
> > you can
> tell
> > if it's soarable or not just by standing at the launch and letting the
> breeze
> > hit you in the face. I did lots of wind dummy stuff. Sometimes I got
> skunked
> > and did a sled ride to the landing area but most of the time I got
> > lots of space to myself as the rest of the crew scrambled getting
> > their gliders assembled.
> >
> > Where I'm going with all of this is;  I've noticed maybe a couple of
> > upper layer wind patterns at Brothers. Seems like most of the time
> > it's pretty
> high.
> > I was thinking of a wind dummy rocket. Launch this thing with a big
> parachute
> > on it and see where it goes when it comes down. Probably not all the
> > time
> but
> > for certification flights and big, expensive rocket launches.
> > It could be built really cheapo, doesn't have to be CF and have a big
> motor,
> > just something with enough snooze to get it above the wind layers. I
> > just don't know where they are yet. One could use a single use motor
> > so ifn the thing got lost it's no big deal, doesn't need electronics
> > either. If the
> club
> > sprung for the cost of some of the materials for it then we could all
> > use
> it
> > when we deemed it necessary.  I was thinking of something with a 5"
> > airframe or above. Maybe even use some smoke on it if we could find
> something
> > that wouldn't set things on fire. I'd be willing to paint it with some
> > red neon or a roll pattern of sorts so we could see the damn thing.
> > I'm just thinking out loud here.
> >
> > Any ideas?
> >
> >
> >
> > Dave Proffitt (retired wind dummy)
> 
> 
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