Re: [GPSL] Flight Train.
- I participated in a flight with 3 balloons out in California with KC6CCC....two burst leaving one inflated on the way down. We could see the one balloon sticking above the treeline as we approached a popular ATV off-roading site....all of a sudden the balloon disappeared and we shortly saw a fellow in his truck with our payloads in the back next to his ATVs pass us in the opposite direction as he was heading to find a payphone to collect the reward. We flagged him down but still had to pay the reward.- Bill WB8ELK
From: Mike Manes <mrmanes@...>
Sent: Sat, Apr 3, 2010 12:09 am
Subject: Re: [GPSL] Flight Train.
Or until a weak bit on the payload string breaks off, thus unburdening the balloon so it takes off again. It's happened to us twice! The good news is that you get an extra launch at no extra cost :-}. 73 de Mike W5VSI
On 4/2/2010 20:40, Idle-Tyme wrote: > We did the two balloons , but inflated them so they each provided 1/2 > the needed lift. and one would eventually pop before the other, and then > there is only 1/2 the needed lift to stay airborne so it comes down slowly. > > it make it awesome to find them after landing, as long as the wind is > slow. if it's windy it's gonna get dragged till it gets caught on > sometyhing. > > Joe WB9SBD > Near Space Sciences > > The Original Rolling Ball Clock > Idle Tyme > Idle-Tyme.com > http://www.idle-tyme.com > > On 4/2/2010 9:57 PM, Nick Hanks wrote: >> >> In 2007 GPSL was held in Grand Island, NE. One of the groups attending >> was from Maine. I believe the group was EOSRED – Edge of Space >> Research, Experiments and Developments >> (http://groups.yahoo.com/group/EOSRED/). They launched in interesting >> configuration. They had two balloons (about 1000g or 1200g I think) >> and on the bottom of the payload string they had an inverted >> parachute. It may have been made of a metallic-coated cloth. After the >> flight at the “How Did It Go” session on Sat. afternoon Lee W1LWT >> explained their configuration. This is what I remember they said. >> Maybe there were others who heard Lee that can add more detail and/or >> provide some corrections. Or maybe W1LWT monitors this reflector. >> >> They flew two balloons because the prevailing winds in Maine often >> blew their balloons out to sea. One balloon would of course burst at a >> high altitude, leaving the other balloon inflated. The second balloon >> didn’t provide enough lift to generate a positive rate of ascent with >> the shards of the first balloon and the payload string still attached. >> (It may have been under-inflated.) So the second balloon and the >> payload string came down (albeit slowly). I believe they had the >> inverted parachute on a short line (five feet maybe), and it got >> tangled in the payload string. As I mentioned, the whole thing could >> land in the water. If it did, instead of sinking, the second balloon >> kept everything afloat until EOSRED folks got there in a boat. They >> said they needed the inverted ‘chute to keep the ascent rate down with >> two balloons providing lift. The parachute wasn’t used to slow the >> descent. >> >> 73, >> >> Nick >> >> NØLP >> >> ------------------------------------------------------------------------ >> >> *From:* GPSL@yahoogroups.com [mailto:GPSL@yahoogroups.com] *On Behalf >> Of *BASE >> *Sent:* Friday, April 02, 2010 06:02 >> *To:* GPSL@yahoogroups.com >> *Subject:* Re: [GPSL] Flight Train. >> >> Joe, >> >> Although we've never flown light payload strings (too many experiment >> on the flight), I wonder about flying with an inverted parachute. I >> can envision a stack that has the balloon on top, then the payload and >> at the bottom the inverted parachute. >> >> The ascent would be slowed at lower altitudes (another fascinating >> Hanks' knee in the climb), but after burst I believe you would exit >> the chaos with the chute on top and working properly. >> >> Of course, I've been wrong before :) >> >> Howard >> >> --- On *Fri, 4/2/10, Mike Manes /<mrmanes@...>/* wrote: >> >> >> From: Mike Manes <mrmanes@...> >> Subject: Re: [GPSL] Flight Train. >> To: GPSL@yahoogroups.com >> Cc: "Idle-Tyme" <nss@...> >> Date: Friday, April 2, 2010, 1:08 AM >> >> Hi Joe, >> >> EOSS uses that fast release device that you made a prototype of to >> get shed of the shards immediately after burst. Another way is >> to fire the cutdown while the balloon is still intact, but sacrifices >> hitting your peak altitude. >> >> 73 de Mike W5VSI >> >> On 4/1/2010 20:50, Idle-Tyme wrote: >> > I have been discussing this with Bill The main Man the balloon dude of >> > all balloon dudes. And want to also open this to any of you out there. >> > >> > What do you do when in your flight train the balloon is many times >> > heavier than the rest of the flight train? >> > >> > What do you do to keep the balloon schards remenants from dragging the >> > chute over upside down since it would weigh much more than the payload? >> > >> > Joe WB9SBD >> > Near Space Sciences >> > -- >> > >> > The Original Rolling Ball Clock >> > Idle Tyme >> > Idle-Tyme.com >> > http://www.idle- tyme.com <http://www.idle-tyme.com> >> >> -- >> Mike Manes mrmanes@gmail. com </mc/compose?to=mrmanes%40gmail.com> >> Tel: 303-979-4899 >> "Things should be made as simple as possible, but not more so." >> A. Einstein >> -- Mike Manes mrmanes@... Tel: 303-979-4899 "Things should be made as simple as possible, but not more so." A. Einstein ------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/GPSL/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/GPSL/join (Yahoo! ID required) <*> To change settings via email: GPSLemail@example.com GPSLfirstname.lastname@example.org <*> To unsubscribe from this group, send an email to: GPSLemail@example.com <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/