To be a little more specific, that was my 525 gram tracker, 200 gram camera
payload, and 25 gram allowance for parachute and rigging.
Obviously needs to be updated for the weight of Dan's tracker and the
beacon.
My camera module is going to be slightly lighter, since I found some
lighter LiPoS batteries. If we stay with three cameras about 150 grams,
maybe 110 if we drop to two.
25 grams for parachute and rigging is still conservative. The larger of the
mylar parachutes weighs 8 grams, and you can run a lot of 20 pound test
cord for 27 grams...
David P Smith
Tripoli 15803
NAR 78668
Amateur Extra: W6DPS
ROC Board Member
On Mar 29, 2016 9:48 AM, "David Smith" <davew6dps@xxxxxxxxx> wrote:
Pay load weight before was 750 grams and we were using a net lift of 500
grams.
So total neck lift 1250 grams.
David P Smith
Tripoli 15803
NAR 78668
Amateur Extra: W6DPS
ROC Board Member
On Mar 29, 2016 9:45 AM, "KG6YGC" <kg6ygc@xxxxxxxxx> wrote:
Ok thanks. What's the payload weight and our target neck lift?
On Mar 29, 2016, at 09:08, David Smith <davew6dps@xxxxxxxxx> wrote:
I have just been using an ascent rate of 4 mps and an average descent
rate of 7 mps. Those were the rates we calculated before.
I think we were figuring a 300 grams balloon.
David P Smith
Tripoli 15803
NAR 78668
Amateur Extra: W6DPS
ROC Board Member
On Mar 29, 2016 6:31 AM, "KG6YGC" <kg6ygc@xxxxxxxxx> wrote:
I don't recall what the balloon size was. I can get a 200g or a 300g
pretty cheaply. What are you using in your model?
-bb
On Mar 28, 2016, at 14:39, David Smith <davew6dps@xxxxxxxxx> wrote:
Unfortunately similar to the response to previous suggestions.
I have tracker and video payloads still ready to go.
If you run simulations for the next couple of weeks they are quite
variable.
I am available on about half of the weekends through the end of Spring.
If there us a good time for you, Dan, or may be a couple choices, post
and see if we can get things going!
David P Smith
Tripoli 15803
NAR 78668
Amateur Extra: W6DPS
ROC Board Member
On Mar 26, 2016 7:43 PM, <wa6pzb@xxxxxxxx> wrote:
Hello Guys,
I have my T3-mini/SRB MX145/ADS-GM2 APRS package ready along with the
original beacon only package. It has been ready since last year.
Are we ready to plan another balloon launch? The weather is getting
nice. If we can have an equipment dry run day followed by a launch day
maybe on separate weekends, I think we will be set.
Last year we attempted on 4/4/2015, perhaps we can target a May date.
APRS package:
<image002.jpg>
Beacon only package:
<image006.jpg>
*From:* earn-chat-bounce@xxxxxxxxxxxxx [mailto:
earn-chat-bounce@xxxxxxxxxxxxx] *On Behalf Of *David Smith
*Sent:* Saturday, July 25, 2015 21:32
*To:* earn-chat@xxxxxxxxxxxxx
*Subject:* [earn-chat] Re: Interesting Predictions
Dan,
I just need to charge the cameras. It can be ready to fly tomorrow.
Why a simulated file? Wouldn't it be good to just assemble the tracker
and test it?
It would be good to have actual elevation change. Maybe up the 18
toward Big Bear/Running Springs? The road gives fairly good coverage of the
San Bernardino area, and climbs up to about 7,000'. Any other routes that
might work?
Another option is to do it like an old fashioned mobile fox hunt. Take
the tracker to an undisclosed location, and see if we can find it. Maybe a
hill top?
Using the tracker and a mobile antenna should give a fairly good radius
for the signal. Move to a different frequency for the test to see how well
we can track directly.
David P Smith
Tripoli 15803, NAR 78668, L2
Amateur Extra, W6DPS
On Sat, Jul 25, 2015 at 8:54 PM, <wa6pzb@xxxxxxxx> wrote:
Hi Dave,
How is the photography payload? I am very close to completing the
T3-mini/SRB MX145/ADS-GM2 APRS package. I just tuned the dipole this
weekend. I will send full details once completed.
Are we still good for a dry run with a simulated flight profile? I will
generate a simulated GPS data file and run that into the tracker. The
tracker will be car mounted but we can verify everyone’s gear before the
real launch because they will have to find me!
73, Dan
*From:* earn-chat-bounce@xxxxxxxxxxxxx [mailto:
earn-chat-bounce@xxxxxxxxxxxxx] *On Behalf Of *David Smith
*Sent:* Tuesday, July 21, 2015 01:11
*To:* earn-chat@xxxxxxxxxxxxx
*Subject:* [earn-chat] Interesting Predictions
The winds and winds aloft are somewhat unusual for this time of year.
Must be El Nino or climate change.
But the predictions are actually running favorable to a launch from
either our primary spot, landing in Johnson Valley, or from Lucerne Dry
Lake and landing in the Newberry Springs area.
We may not have to wait for fall...
David P Smith
Tripoli 15803
NAR 78668
Amateur Extra: W6DPS
ROC Board Member
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