BPP Wiki - User contributions [en]

MediaWiki:Sidebar

2025-03-16T21:28:49Z

Bppadmin:

MediaWiki:Sidebar

2025-03-16T21:28:37Z

Bppadmin:

MediaWiki:Sidebar

2025-03-16T21:28:23Z

Bppadmin:

MediaWiki:Sidebar

2025-03-16T21:27:27Z

Bppadmin:

User talk:Confrimaccounttesting

2023-01-24T04:30:43Z

Bppadmin: Welcome!

'''Welcome to ''BPP Wiki''!'''
We hope you will contribute much and well.
You will probably want to read the [https://www.mediawiki.org/wiki/Special:MyLanguage/Help:Contents help pages].
Again, welcome and have fun! [[User:Bppadmin|Bppadmin]] ([[User talk:Bppadmin|talk]]) 23:30, 23 January 2023 (EST)

MediaWiki:Sidebar

2023-01-24T03:54:55Z

Bppadmin:

MediaWiki:Sidebar

2023-01-24T03:54:43Z

Bppadmin:

Main Page

2023-01-24T03:45:30Z

Bppadmin: /* BPP Pages */

== Summary ==
Welcome to the BPP Wiki!

The Balloon Payload Program at the University of Maryland has launched more than 100 balloons since its creation in 2004. BPP projects have included scientific data collection, engineering development, and educational outreach.

During its history, BPP has worked with of variety of groups including UMD SSL and HAPL, professors from the AOSC and Physics departments, Capital Technical University, and several local schools and educational groups. Hundreds of 1st year Aerospace Engineering students have learned how to design, build, and fly balloon payloads as part of ENAE100 projects.

BPP has participated in NASA RockSat-C, RockSat-X, NASA/LaSPACE HASP, and AAS CANSAT.

== BPP Pages ==
* [https://bpp.umd.edu/ Main Website]
* [[History]]
* [[Launches]]
* [[Payloads / Projects]]
* [[Outreach]]
* [[Ballooning Resources]]
* [https://bpp.umd.edu/archives/ Program Archive]
* [https://github.com/UMDBPP GitHub]

== Getting started ==
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Configuration_settings Configuration settings list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:FAQ MediaWiki FAQ]
* [https://lists.wikimedia.org/postorius/lists/mediawiki-announce.lists.wikimedia.org/ MediaWiki release mailing list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Localisation#Translation_resources Localise MediaWiki for your language]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Combating_spam Learn how to combat spam on your wiki]
* [Consult the [https://www.mediawiki.org/wiki/Special:MyLanguage/Help:Contents User's Guide] for information on using the wiki software.]

BPP Stem Workshop 2023

2023-01-24T03:30:39Z

Bppadmin:

== '''Welcome to the Community STEM Workshop page, run by the University of Maryland, Balloon Payload Program!''' ==

If you are here, you are probably either a student of the workshop, an interested learner, or a member of our club. This page has all of the resources from our workshop lessons: presentations, documents, codes, files, extra pamphlets, and challenge exercises!

BPP Stem Workshop 2023

2023-01-24T03:30:33Z

Bppadmin:

== '''Welcome to the Community STEM Workshop page, run by the University of Maryland, Balloon Payload Program!''' ==

:If you are here, you are probably either a student of the workshop, an interested learner, or a member of our club. This page has all of the resources from our workshop lessons: presentations, documents, codes, files, extra pamphlets, and challenge exercises!

BPP Stem Workshop 2023

2023-01-24T03:25:01Z

Bppadmin: Blanked the page

BPP Stem Workshop 2023

2023-01-24T03:24:00Z

Bppadmin:

[[Media:SeniorPMcode fixedNew.ino|thumb]]

[[File:Michael_Kalin_Discussion_Worksheet_6.pdf|400px]]

BPP Stem Workshop 2023

2023-01-24T03:23:51Z

Bppadmin:

[[Media:SeniorPMcode fixedNew.ino|thumb]]

[[File:Michael_Kalin_Discussion_Worksheet_6.pdf|600px]]

BPP Stem Workshop 2023

2023-01-24T03:23:31Z

Bppadmin:

[[Media:SeniorPMcode fixedNew.ino|thumb]]

[[File:Michael_Kalin_Discussion_Worksheet_6.pdf]]

BPP Stem Workshop 2023

2023-01-24T03:22:44Z

Bppadmin:

[[Media:SeniorPMcode fixedNew.ino|thumb]]

[[Media:Michael_Kalin_Discussion_Worksheet_6.pdf]]

BPP Stem Workshop 2023

2023-01-24T03:22:33Z

Bppadmin:

[[File:SeniorPMcode fixedNew.ino|thumb]]

[[Media:Michael_Kalin_Discussion_Worksheet_6.pdf]]

File:Michael Kalin Discussion Worksheet 6.pdf

2023-01-24T03:17:17Z

Bppadmin:

test

BPP Stem Workshop 2023

2023-01-24T03:15:21Z

Bppadmin:

[[File:SeniorPMcode fixedNew.ino|thumb]]

BPP Stem Workshop 2023

2023-01-24T03:15:12Z

Bppadmin:

[[File:SeniorPMcodefixedNew.ino|thumb]]

BPP Stem Workshop 2023

2023-01-24T03:14:26Z

Bppadmin: Created page with "thumb"

[[File:SeniorPMcode fixedNew.ino|thumb]]

File:SeniorPMcode fixedNew.ino

2023-01-24T03:14:24Z

Bppadmin:

test

Outreach

2023-01-24T03:03:48Z

Bppadmin: Created page with "BPP Stem Workshop 2023"

[[BPP Stem Workshop 2023]]

NS-112

2022-12-14T00:19:30Z

Bppadmin: /* Plots */

{{Launches
|launchNumber = 112
|date = 10/16/22
|maxAlt = 17708,58100
|launchLoc = 39.6968,-78.1957
|landingLoc = 39.6577,-76.7251
|flightDuration = 01:36:00
|payloadList = </div>
* [[Command-v5]]
* [[Helios-v3]]
* [[Choppy]]
|orgList= </div>
N/A
}}

== Launch Recap ==

[[File:NS-112 Launch Pad.jpg|Launch team on pad at NS-112|500px]]

This was the first test flight of the balloon venting payload GHOUL (a spiritual successor to Helios). Since it was an unflown balloon neck payload there were some issues on the launchpad caused by GHOUL. The payload was not able to seal the neck of the balloon very well and a lot of leaking occurred. The leaks were patched with tape and this proved to be effective. However, adding the tape made it unlikely that the cutdown mechanism would work (eventually confirmed with post-flight ground testing) and the GHOUL team thought that the manual choppys installed below GHOUL would have to be used to terminate the flight, resulting in a loss of the payload. There was also an issue with the mechanism that was used to open and close GHOUL's vent. The rod that connected the vent to its servo became dislodged from its mounting point causing the vent to be unable to close once opened. This issue was recognized but the root cause was not diagnosed on the launch pad because the mechanism was inside of GHOUL and could not be accessed without disconnecting GHOUL from an already inflated balloon. Both of these issues made the launch team very pessimistic about the chances of success for this launch.

[[File:GHOUL Troubleshooting.jpg|GHOUL team investigating the vent's mechanical issue on the launch pad|500px]]

After release the balloon's ascent rate was very steady, indicating that there were no leaks coming from GHOUL. GHOUL was programmed to vent at 15km to lower its ascent rate by 40% and then vent again at 23km to lower its ascent rate to 0 m/s. When the balloon reached 15km, GHOUL successfully opened its vent and its ascent rate decreased from ~6 m/s to 3.6 m/s in 2 minutes. When GHOUL recognized it had successfully decreased its ascent rate, it tried to close its vent, but was unable to due to the mechanical failure that occurred on the launch pad. GHOUL continued to vent helium and decrease its ascent rate until the balloon was descending at ~7 m/s. Seeing this negative ascent rate, the launch team assumed that the balloon had burst or had been cut away. Although the flight did not last as long as originally planned, the GHOUL team was happy that they were likely going to be able to recover their payload and analyze what happened.

The team was shocked when it reached the recovery site to find still intact and partially inflated balloon sitting in a field with all of the payloads attached.

[[File:NS-112 Recovery.jpg|NS-112 recovery|350px]]

This is the first time in BPP history that BPP has recovered a fully intact balloon after a (non-insignificant) flight. This may also be a first for the ballooning community at large.

== Plots ==
[[File:Altitude vs. Time for NS-112.png|Plot of Altitude vs. Time for NS-112|500px]] [[File:image (9).png|Plot of Ascent Rate vs. Time for NS-112|590px]]

*zone indicated by red dotted lines shows when the GHOUL vent was commanded to open

NS-112

2022-12-10T09:16:26Z

Bppadmin: /* Launch Recap */

{{Launches
|launchNumber = 112
|date = 10/16/22
|maxAlt = X,Y
|launchLoc = launchCoords
|landingLoc = landingCoords
|flightDuration = HH:MM:SS
|payloadList = </div>
* [[Command-v5]]
* [[Helios-v3]]
* [[Choppy]]
|orgList= </div>
N/A
}}

== Launch Recap ==

[[File:NS-112 Launch Pad.jpg|Launch team on pad at NS-112|500px]]

This was the first test flight of the balloon venting payload GHOUL (a spiritual successor to Helios). Since it was an unflown balloon neck payload there were some issues on the launchpad caused by GHOUL. The payload was not able to seal the neck of the balloon very well and a lot of leaking occurred. The leaks were patched with tape and this proved to be effective. However, adding the tape made it unlikely that the cutdown mechanism would work (eventually confirmed with post-flight ground testing) and the GHOUL team thought that the manual choppys installed below GHOUL would have to be used to terminate the flight, resulting in a loss of the payload. There was also an issue with the mechanism that was used to open and close GHOUL's vent. The rod that connected the vent to its servo became dislodged from its mounting point causing the vent to be unable to close once opened. This issue was recognized but the root cause was not diagnosed on the launch pad because the mechanism was inside of GHOUL and could not be accessed without disconnecting GHOUL from an already inflated balloon. Both of these issues made the launch team very pessimistic about the chances of success for this launch.

[[File:GHOUL Troubleshooting.jpg|GHOUL team investigating the vent's mechanical issue on the launch pad|500px]]

After release the balloon's ascent rate was very steady, indicating that there were no leaks coming from GHOUL. GHOUL was programmed to vent at 15km to lower its ascent rate by 40% and then vent again at 23km to lower its ascent rate to 0 m/s. When the balloon reached 15km, GHOUL successfully opened its vent and its ascent rate decreased from ~6 m/s to 3.6 m/s in 2 minutes. When GHOUL recognized it had successfully decreased its ascent rate, it tried to close its vent, but was unable to due to the mechanical failure that occurred on the launch pad. GHOUL continued to vent helium and decrease its ascent rate until the balloon was descending at ~7 m/s. Seeing this negative ascent rate, the launch team assumed that the balloon had burst or had been cut away. Although the flight did not last as long as originally planned, the GHOUL team was happy that they were likely going to be able to recover their payload and analyze what happened.

The team was shocked when it reached the recovery site to find still intact and partially inflated balloon sitting in a field with all of the payloads attached.

[[File:NS-112 Recovery.jpg|NS-112 recovery|350px]]

This is the first time in BPP history that BPP has recovered a fully intact balloon after a (non-insignificant) flight. This may also be a first for the ballooning community at large.

== Plots ==
[[File:Altitude vs. Time for NS-112.png|Plot of Altitude vs. Time for NS-112|500px]] [[File:image (9).png|Plot of Ascent Rate vs. Time for NS-112|590px]]

NS-112

2022-12-10T09:16:00Z

Bppadmin:

{{Launches
|launchNumber = 112
|date = 10/16/22
|maxAlt = X,Y
|launchLoc = launchCoords
|landingLoc = landingCoords
|flightDuration = HH:MM:SS
|payloadList = </div>
* [[Command-v5]]
* [[Helios-v3]]
* [[Choppy]]
|orgList= </div>
N/A
}}

== Launch Recap ==

[[File:NS-112 Launch Pad.jpg|Launch team on pad at NS-112|500px]]

This was the first test flight of the balloon venting payload GHOUL (a spiritual successor to Helios). Since it was an unflown balloon neck payload there were some issues on the launchpad caused by GHOUL. The payload was not able to seal the neck of the balloon very well and a lot of leaking occurred. The leaks were patched with tape and this proved to be effective. However, adding the tape made it unlikely that the cutdown mechanism would work (eventually confirmed with post-flight ground testing) and the GHOUL team thought that the manual choppys installed below GHOUL would have to be used to terminate the flight, resulting in a loss of the payload. There was also an issue with the mechanism that was used to open and close GHOUL's vent. The rod that connected the vent to its servo became dislodged from its mounting point causing the vent to be unable to close once opened. This issue was recognized but the root cause was not diagnosed on the launch pad because the mechanism was inside of GHOUL and could not be accessed without disconnecting GHOUL from an already inflated balloon. Both of these issues made the launch team very pessimistic about the chances of success for this launch.

[[File:GHOUL Troubleshooting.jpg|GHOUL team investigating the vent's mechanical issue on the launch pad|500px]]

After release the balloon's ascent rate was very steady, indicating that there were no leaks coming from GHOUL. GHOUL was programmed to vent at 15km to lower its ascent rate by 40% and then vent again at 23km to lower its ascent rate to 0 m/s. When the balloon reached 15km, GHOUL successfully opened its vent and its ascent rate decreased from ~6 m/s to 3.6 m/s in 2 minutes. When GHOUL recognized it had successfully decreased its ascent rate, it tried to close its vent, but was unable to due to the mechanical failure that occurred on the launch pad. GHOUL continued to vent helium and decrease its ascent rate until the balloon was descending at ~7 m/s. Seeing this negative ascent rate, the launch team assumed that the balloon had burst or had been cut away. Although the flight did not last as long as originally planned, the GHOUL team was happy that they were likely going to be able to recover their payload and analyze what happened.

The team was shocked when it reached the recovery site to find still intact and partially inflated balloon sitting in a field with all of the payloads attached.

[[File:NS-112 Recovery.jpg|NS-112 recovery|250px]]

This is the first time in BPP history that BPP has recovered a fully intact balloon after a (non-insignificant) flight. This may also be a first for the ballooning community at large.

== Plots ==
[[File:Altitude vs. Time for NS-112.png|Plot of Altitude vs. Time for NS-112|500px]] [[File:image (9).png|Plot of Ascent Rate vs. Time for NS-112|590px]]

NS-112

2022-12-10T09:13:59Z

Bppadmin:

{{Launches
|launchNumber = 112
|date = 10/16/22
|maxAlt = X,Y
|launchLoc = launchCoords
|landingLoc = landingCoords
|flightDuration = HH:MM:SS
|payloadList = </div>
* [[Command-v5]]
* [[Helios-v3]]
* [[Choppy]]
|orgList= </div>
N/A
}}

[[File:NS-112 Launch Pad.jpg|Launch team on pad at NS-112|500px]]

This was the first test flight of the balloon venting payload GHOUL (a spiritual successor to Helios). Since it was an unflown balloon neck payload there were some issues on the launchpad caused by GHOUL. The payload was not able to seal the neck of the balloon very well and a lot of leaking occurred. The leaks were patched with tape and this proved to be effective. However, adding the tape made it unlikely that the cutdown mechanism would work (eventually confirmed with post-flight ground testing) and the GHOUL team thought that the manual choppys installed below GHOUL would have to be used to terminate the flight, resulting in a loss of the payload. There was also an issue with the mechanism that was used to open and close GHOUL's vent. The rod that connected the vent to its servo became dislodged from its mounting point causing the vent to be unable to close once opened. This issue was recognized but the root cause was not diagnosed on the launch pad because the mechanism was inside of GHOUL and could not be accessed without disconnecting GHOUL from an already inflated balloon. Both of these issues made the launch team very pessimistic about the chances of success for this launch.

[[File:GHOUL Troubleshooting.jpg|GHOUL team investigating the vent's mechanical issue on the launch pad|500px]]

After release the balloon's ascent rate was very steady, indicating that there were no leaks coming from GHOUL. GHOUL was programmed to vent at 15km to lower its ascent rate by 40% and then vent again at 23km to lower its ascent rate to 0 m/s. When the balloon reached 15km, GHOUL successfully opened its vent and its ascent rate decreased from ~6 m/s to 3.6 m/s in 2 minutes. When GHOUL recognized it had successfully decreased its ascent rate, it tried to close its vent, but was unable to due to the mechanical failure that occurred on the launch pad. GHOUL continued to vent helium and decrease its ascent rate until the balloon was descending at ~7 m/s. Seeing this negative ascent rate, the launch team assumed that the balloon had burst or had been cut away. Although the flight did not last as long as originally planned, the GHOUL team was happy that they were likely going to be able to recover their payload and analyze what happened.

The team was shocked when it reached the recovery site to find still intact and partially inflated balloon sitting in a field with all of the payloads attached.

[[File:NS-112 Recovery.jpg|NS-112 recovery|250px]]

This is the first time in BPP history that BPP has recovered a fully intact balloon after a (non-insignificant) flight. This may also be a first for the ballooning community at large.

[[File:Altitude vs. Time for NS-112.png|Plot of Altitude vs. Time for NS-112|500px]] [[File:image (9).png|Plot of Ascent Rate vs. Time for NS-112|590px]]

NS-112

2022-12-10T09:09:18Z

Bppadmin:

{{Launches
|launchNumber = 112
|date = 10/16/22
|maxAlt = X,Y
|launchLoc = launchCoords
|landingLoc = landingCoords
|flightDuration = HH:MM:SS
|payloadList = </div>
* [[Command-v5]]
* [[Helios-v3]]
* [[Choppy]]
|orgList= </div>
N/A
}}

This was the first test flight of the balloon venting payload GHOUL (a spiritual successor to Helios). Since it was an unflown balloon neck payload there were some issues on the launchpad caused by GHOUL. The payload was not able to seal the neck of the balloon very well and a lot of leaking occurred. The leaks were patched with tape and this proved to be effective. However, adding the tape made it unlikely that the cutdown mechanism would work (eventually confirmed with post-flight ground testing) and the GHOUL team thought that the manual choppys installed below GHOUL would have to be used to terminate the flight, resulting in a loss of the payload. There was also an issue with the mechanism that was used to open and close GHOUL's vent. The rod that connected the vent to its servo became dislodged from its mounting point causing the vent to be unable to close once opened. This issue was recognized but the root cause was not diagnosed on the launch pad because the mechanism was inside of GHOUL and could not be accessed without disconnecting GHOUL from an already inflated balloon. Both of these issues made the launch team very pessimistic about the chances of success for this launch.

After release the balloon's ascent rate was very steady, indicating that there were no leaks coming from GHOUL. GHOUL was programmed to vent at 15km to lower its ascent rate by 40% and then vent again at 23km to lower its ascent rate to 0 m/s. When the balloon reached 15km, GHOUL successfully opened its vent and its ascent rate decreased from ~6 m/s to 3.6 m/s in 2 minutes. When GHOUL recognized it had successfully decreased its ascent rate, it tried to close its vent, but was unable to due to the mechanical failure that occurred on the launch pad. GHOUL continued to vent helium and decrease its ascent rate until the balloon was descending at ~7 m/s. Seeing this negative ascent rate, the launch team assumed that the balloon had burst or had been cut away. Although the flight did not last as long as originally planned, the GHOUL team was happy that they were likely going to be able to recover their payload and analyze what happened.

The team was shocked when it reached the recovery site to find still intact and partially inflated balloon sitting in a field with all of the payloads attached.

This is the first time in BPP history that BPP has recovered a fully intact balloon after a (non-insignificant) flight. This may also be a first for the ballooning community at large.

[[File:Altitude vs. Time for NS-112.png|Plot of Altitude vs. Time for NS-112]]
[[File:image (9).png|thumb|Plot of Ascent Rate vs. Time for NS-112]]
[[File:NS-112 Launch Pad.jpg|thumb|Launch team on pad at NS-112]]
[[File:GHOUL Troubleshooting.jpg|thumb|GHOUL team investigating the vent's mechanical issue on the launch pad]]
[[File:NS-112 Recovery.jpg|thumb|NS-112 recovery]]

NS-112

2022-12-10T09:06:52Z

Bppadmin:

{{Launches
|launchNumber = 112
|date = 10/16/22
|maxAlt = X,Y
|launchLoc = launchCoords
|landingLoc = landingCoords
|flightDuration = HH:MM:SS
|payloadList = </div>
* [[Command-v5]]
* [[Helios-v3]]
* [[Choppy]]
|orgList= </div>
N/A
}}

This was the first test flight of the balloon venting payload GHOUL (a spiritual successor to Helios). Since it was an unflown balloon neck payload there were some issues on the launchpad caused by GHOUL. The payload was not able to seal the neck of the balloon very well and a lot of leaking occurred. The leaks were patched with tape and this proved to be effective. However, adding the tape made it unlikely that the cutdown mechanism would work (eventually confirmed with post-flight ground testing) and the GHOUL team thought that the manual choppys installed below GHOUL would have to be used to terminate the flight, resulting in a loss of the payload. There was also an issue with the mechanism that was used to open and close GHOUL's vent. The rod that connected the vent to its servo became dislodged from its mounting point causing the vent to be unable to close once opened. This issue was recognized but the root cause was not diagnosed on the launch pad because the mechanism was inside of GHOUL and could not be accessed without disconnecting GHOUL from an already inflated balloon. Both of these issues made the launch team very pessimistic about the chances of success for this launch.

After release the balloon's ascent rate was very steady, indicating that there were no leaks coming from GHOUL. GHOUL was programmed to vent at 15km to lower its ascent rate by 40% and then vent again at 23km to lower its ascent rate to 0 m/s. When the balloon reached 15km, GHOUL successfully opened its vent and its ascent rate decreased from ~6 m/s to 3.6 m/s in 2 minutes. When GHOUL recognized it had successfully decreased its ascent rate, it tried to close its vent, but was unable to due to the mechanical failure that occurred on the launch pad. GHOUL continued to vent helium and decrease its ascent rate until the balloon was descending at ~7 m/s. Seeing this negative ascent rate, the launch team assumed that the balloon had burst or had been cut away. Although the flight did not last as long as originally planned, the GHOUL team was happy that they were likely going to be able to recover their payload and analyze what happened.

The team was shocked when it reached the recovery site to find still intact and partially inflated balloon sitting in a field with all of the payloads attached.

This is the first time in BPP history that BPP has recovered a fully intact balloon after a (non-insignificant) flight. This may also be a first for the ballooning community at large.

[[File:Altitude vs. Time for NS-112.png|thumb|Plot of Altitude vs. Time for NS-112]]
[[File:image (9).png|thumb|Plot of Ascent Rate vs. Time for NS-112]]
[[File:NS-112 Launch Pad.jpg|thumb|Launch team on pad at NS-112]]
[[File:GHOUL Troubleshooting.jpg|thumb|GHOUL team investigating the vent's mechanical issue on the launch pad]]
[[File:NS-112 Recovery.jpg|thumb|NS-112 recovery]]

NS-112

2022-12-10T09:05:43Z

Bppadmin:

{{Launches
|launchNumber = 112
|date = 10/16/22
|maxAlt = X,Y
|launchLoc = launchCoords
|landingLoc = landingCoords
|flightDuration = HH:MM:SS
|payloadList = </div>
* [[Command-v5]]
* [[Helios-v3]]
* [[Choppy]]
|orgList= </div>
N/A
}}

This was the first test flight of the balloon venting payload GHOUL (a spiritual successor to Helios). Since it was an unflown balloon neck payload there were some issues on the launchpad caused by GHOUL. The payload was not able to seal the neck of the balloon very well and a lot of leaking occurred. The leaks were patched with tape and this proved to be effective. However, adding the tape made it unlikely that the cutdown mechanism would work (eventually confirmed with post-flight ground testing) and the GHOUL team thought that the manual choppys installed below GHOUL would have to be used to terminate the flight, resulting in a loss of the payload. There was also an issue with the mechanism that was used to open and close GHOUL's vent. The rod that connected the vent to its servo became dislodged from its mounting point causing the vent to be unable to close once opened. This issue was recognized but the root cause was not diagnosed on the launch pad because the mechanism was inside of GHOUL and could not be accessed without disconnecting GHOUL from an already inflated balloon. Both of these issues made the launch team very pessimistic about the chances of success for this launch.

After release the balloon's ascent rate was very steady, indicating that there were no leaks coming from GHOUL. GHOUL was programmed to vent at 15km to lower its ascent rate by 40% and then vent again at 23km to lower its ascent rate to 0 m/s. When the balloon reached 15km, GHOUL successfully opened its vent and its ascent rate decreased from ~6 m/s to 3.6 m/s in 2 minutes. When GHOUL recognized it had successfully decreased its ascent rate, it tried to close its vent, but was unable to due to the mechanical failure that occurred on the launch pad. GHOUL continued to vent helium and decrease its ascent rate until the balloon was descending at ~7 m/s. Seeing this negative ascent rate, the launch team assumed that the balloon had burst or had been cut away. Although the flight did not last as long as originally planned, the GHOUL team was happy that they were likely going to be able to recover their payload and analyze what happened.

The team was shocked when it reached the recovery site to find still intact and partially inflated balloon sitting in a field with all of the payloads attached.

This is the first time in BPP history that BPP has recovered a fully intact balloon after a (non-insignificant) flight. This may also be a first for the ballooning community at large.

[[File:Altitude vs. Time for NS-112.png|thumb|Plot of Altitude vs. Time for NS-112]]
[[File:image(9).png|thumb|Plot of Ascent Rate vs. Time for NS-112]]
[[File:NS-112 Launch Pad.jpg|thumb]]
[[File:GHOUL Troubleshooting.jpg|thumb|GHOUL team investigating the vent's mechanical issue on the launch pad]]
[[File:NS-112 Recovery.jpg|thumb|NS-112 Recovery]]

NS-112

2022-12-10T09:01:26Z

Bppadmin:

{{Launches
|launchNumber = 112
|date = 10/16/22
|maxAlt = X,Y
|launchLoc = launchCoords
|landingLoc = landingCoords
|flightDuration = HH:MM:SS
|payloadList = </div>
* [[Command-v5]]
* [[Helios-v3]]
* [[Choppy]]
|orgList= </div>
N/A
}}

This was the first test flight of the balloon venting payload GHOUL (a spiritual successor to Helios). Since it was an unflown balloon neck payload there were some issues on the launchpad caused by GHOUL. The payload was not able to seal the neck of the balloon very well and a lot of leaking occurred. The leaks were patched with tape and this proved to be effective. However, adding the tape made it unlikely that the cutdown mechanism would work (eventually confirmed with post-flight ground testing) and the GHOUL team thought that the manual choppys installed below GHOUL would have to be used to terminate the flight, resulting in a loss of the payload. There was also an issue with the mechanism that was used to open and close GHOUL's vent. The rod that connected the vent to its servo became dislodged from its mounting point causing the vent to be unable to close once opened. This issue was recognized but the root cause was not diagnosed on the launch pad because the mechanism was inside of GHOUL and could not be accessed without disconnecting GHOUL from an already inflated balloon. Both of these issues made the launch team very pessimistic about the chances of success for this launch.

After release the balloon's ascent rate was very steady, indicating that there were no leaks coming from GHOUL. GHOUL was programmed to vent at 15km to lower its ascent rate by 40% and then vent again at 23km to lower its ascent rate to 0 m/s. When the balloon reached 15km, GHOUL successfully opened its vent and its ascent rate decreased from ~6 m/s to 3.6 m/s in 2 minutes. When GHOUL recognized it had successfully decreased its ascent rate, it tried to close its vent, but was unable to due to the mechanical failure that occurred on the launch pad. GHOUL continued to vent helium and decrease its ascent rate until the balloon was descending at ~7 m/s. Seeing this negative ascent rate, the launch team assumed that the balloon had burst or had been cut away. Although the flight did not last as long as originally planned, the GHOUL team was happy that they were likely going to be able to recover their payload and analyze what happened.

The team was shocked when it reached the recovery site to find still intact and partially inflated balloon sitting in a field with all of the payloads attached.

This is the first time in BPP history that BPP has recovered a fully intact balloon after a (non-insignificant) flight. This may also be a first for the ballooning community at large.

<gallery>
[[File:Altitude vs. Time for NS-112.png|thumb|Plot of Altitude vs. Time for NS-112]]
[[File:Arate plot ns112|thumb|A plot of the Ascent Rate vs. Time for NS-112]]
[[File:NS-112 Launch Pad.jpg|thumb]]
[[File:GHOUL Troubleshooting.jpg|thumb|GHOUL team investigating the vent's mechanical issue on the launch pad]]
[[File:NS-112 Recovery.jpg|thumb|NS-112 Recovery]]
</gallery>

File:NS-112 Recovery.jpg

2022-12-10T09:01:05Z

Bppadmin:

A photo of the NS-112 balloon during recovery

File:GHOUL Troubleshooting.jpg

2022-12-10T09:00:03Z

Bppadmin:

A photo of the GHOUL team trying to fix a mechanical issue on the the launch pad

File:NS-112 Launch Pad.jpg

2022-12-10T08:58:51Z

Bppadmin:

A photo of the launch team on the launch pad for NS-112

File:Altitude vs. Time for NS-112.png

2022-12-10T08:57:56Z

Bppadmin:

A plot of the altitude vs. time for NS-112

File:Image (9).png

2022-12-10T08:56:30Z

Bppadmin:

A plot of the ascent rate for ns-113

NS-112

2022-12-10T08:37:55Z

Bppadmin:

{{Launches
|launchNumber = 112
|date = 10/16/22
|maxAlt = X,Y
|launchLoc = launchCoords
|landingLoc = landingCoords
|flightDuration = HH:MM:SS
|payloadList = </div>
* [[Command-v5]]
* [[Helios-v3]]
* [[Choppy]]
|orgList= </div>
N/A
}}

This was the first test flight of the balloon venting payload [[GHOUL]] (a spiritual successor to [[Helios]]). Since it was an unflown balloon neck payload there were some issues on the launchpad caused by [[GHOUL]]. The payload was not able to seal the neck of the balloon very well and a lot of leaking occurred. The leaks were patched with tape and this proved to be effective. However, adding the tape made it unlikely that the cutdown mechanism would work (eventually confirmed with post-flight ground testing) and the [[GHOUL]] team thought that the manual [Choppy]s installed below [[GHOUL]] would have to be used to terminate the flight, resulting in a loss of the payload.

NS-112

2022-12-10T08:31:41Z

Bppadmin:

{{Launches
|launchNumber = 112
|date = 10/16/22
|maxAlt = X,Y
|launchLoc = launchCoords
|landingLoc = landingCoords
|flightDuration = HH:MM:SS
|payloadList = </div>
* [[Command-v5]]
* [[Helios-v3]]
* [[Choppy]]
|orgList= </div>
N/A
}}

This was the first test flight of the balloon venting payload [[GHOUL]] (a spiritual successor to [[Helios]]).

Launches

2022-12-10T08:30:02Z

Bppadmin: /* List of BPP launches */

== List of BPP launches ==

{| class="wikitable sortable"
|-
! Launch
! Date [Month/Day/Year]
! Peak Altitude [ft/m]
! Payloads
! Summary Notes
|-
| [[NS-1]]
| 05/24/2004
|
|
|
*First BPP Launch
|-
| [[NS-2]]
| 08/22/2004
|
|
|
|-
| [[NS-3]]
| 04/00/2005
|
|
|
* Exact Date Unknown
|-
| [[NS-4]]
| 08/13/2005
|
|
|
|-
| [[NS-5]]
| 09/24/2005
|
|
|
|-
| [[NS-6]]
| 03/11/2006
|
|
|
|-
| [[NS-7]]
| 05/20/2006
|
|
|
|-
| [[NS-8]]
| 06/08/2006
|
|
|
|-
| [[NS-9]]
| 08/01/2006
|
|
|
|-
| [[NS-10]]
| 09/30/2006
|
|
|
* [https://bpp.umd.edu/archives/Launches/NS-10_2006-09-30/image.png First Program Image at Altitude]
|-
| [[NS-11]]
| 03/31/2007
|
|
|
|-
| [[NS-12]]
| 06/02/2007
|
|
|
|-
| [[NS-13]]
| 08/02/2007
|
|
|
|-
| [[NS-14]]
| 08/02/2007
|
|
|
|-
| [[NS-15]]
| 09/30/2007
|
|
|
|-
| [[NS-16]]
| 03/29/2008
|
|
|
|-
| [[NS-17]]
| 07/26/2008
|
|
|
|-
| [[NS-18]]
| 0/00/2008
|
|
|
|-
| [[NS-19]]
| 10/18/2008
|
|
|
|-
| [[NS-20]]
| 6/12/2008
|
|
|
|-
| [[NS-21]]
| 6/04/2009
|
|
|
|-
| [[NS-22]]
| 0/00/2009
|
|
|
|-
| [[NS-23]]
| 0/00/2009
|
|
|
|-
| [[NS-24]]
| 11/08/2009
|
|
|
|-
| [[NS-25]]
| 11/21/2009
|
|
|
|-
| [[NS-26]]
| 12/00/2010
|
|
|
|-
| [[NS-27]]
| 0/00/2010
|
|
|
|-
| [[NS-28]]
| 5/00/2010
|
|
|
|-
| [[NS-29]]
| 0/00/2010
|
|
|
|-
| [[NS-30]]
| 7/05/2010
|
|
|
|-
| [[NS-31]]
| 0/00/2010
|
|
|
|-
| NS-32
| 4/07/2011
|
|
|
|-
| [[NS-33]]
| 8/12/2011
|
|
|
|-
| [[NS-34]]
| 11/13/2011
|
|
|
|-
| [[NS-35]]
| 12/03/2011
|
|
|
|-
| [[NS-36]]
| 3/11/2012
|
|
|
|-
| [[NS-37]]
| 3/20/2012
|
|
|
|-
| [[NS-38]]
| 5/05/2012
|
|
|
|-
| [[NS-39]]
| 10/10/2012
|
|
|
|-
| [[NS-40]]
| 3/30/2013
|
|
|
|-
| [[NS-41]]
| 11/16/2013
|
|
|
|-
| [[NS-42]]
| 4/12/2014
|
|
|
|-
| [[NS-43]]
| 5/03/2014
|
|
|
|-
| [[NS-44]]
| 9/27/2014
|
|
|
|-
| [[NS-45]]
| 11/08/2014
|
|
|
|-
| [[NS-46]]
| 4/11/2015
|
|
|
|-
| [[NS-47]]
| 4/18/2015
|
|
|
|-
| [[NS-48]]
| 6/13/2015
|
|
|
|-
| [[NS-49]]
| 7/18/2015
|
|
|
|-
| [[NS-50]]
| 10/10/2015
|
|
|
|-
| [[NS-51]]
| 11/14/2015
|
|
|
|-
| [[NS-52]]
| 04/16/2016
|
|
|
|-
| [[NS-53]]
| 06/25/2016
|
|
|
|-
| [[NS-54]]
| ~
|
| Supersonic
|
* The launch that never was
|-
| [[NS-55]]
| 06/25/2016
|
|
|
|-
| [[NS-56]]
| 07/23/2016
|
|
|
|-
| [[NS-57]]
| 07/30/2016
|
|
|
|-
| [[NS-58]]
| 09/17/2016
|
|
|
|-
| [[NS-59]]
| 10/29/2016
|
|
|
|-
| [[NS-60]]
| 11/12/2016
|
|
|
|-
| [[NS-61]]
| 12/04/2016
|
|
|
|-
| [[NS-62]]
| 04/01/2017
|
|
|
|-
| [[NS-63]]
| 04/15/2017
|
|
|
|-
| [[NS-64]]
| 05/07/2017
|
|
|
|-
| [[NS-65]]
| 07/01/2017
|
|
|
|-
| [[NS-66]]
| 07/01/2017
|
|
|
|-
| [[NS-67]]
| 07/15/2017
|
| Command-v3
|
* Joint Launch with NS-68
|-
| [[NS-68]]
| 07/15/2017
|
| Mini-Command, HTB-1, FYSE Payloads, Skynet2
|
* Joint Launch with NS-67
* Tracking system power failure led to loss of payloads for 7 months
|-
| [[NS-69]]
| 08/21/2017
|
| Command-v3,
|
* Solar Eclipse Launch from South Carolina
|-
| [[NS-70]]
| 10/07/2017
|
| Command-v3, Tyrion, FISH-v1
|
* 2nd flight of FISH-v1 HAPL payload
|-
| [[NS-71]]
| 11/11/2017
|
|
|
|-
| [[NS-72]]
| 11/18/2017
|
|
|
|-
| [[NS-73]]
| 12/02/2017
|
|
|
|-
| [[NS-74]]
| 01/27/2018
|
| Command-v3, TARDIS-2.0
|
* Drop-test of TARDIS-2.0 deployable heatshield payload<br /> * Secondary 600g balloon flying TWISTER electronics
|-
| [[NS-75]]
| 03/31/2018
|
| Command-v3, BASIC, Tyrion
|
* Worst high-altitude clear air turbulence encountered
* Tyrion and BASIC lost at altitude, Tyrion recovered later that week
|-
| [[NS-76]]
| 04/14/2018
|
|
|
|-
| [[NS-77]]
| 05/05/2018
|
|
|
|-
| [[NS-78]]
| 06/30/2018
|
|
|
|-
| [[NS-79]]
| 09/29/2018
|
|
|
|-
| [[NS-80]]
| 11/11/2018
|
|
|
|-
| [[NS-81]]
| 02/03/2019
|
|
|
|-
| [[NS-82]]
| 04/14/2019
|
|
|
|-
| [[NS-83]]
| 04/21/2019
|
|
|
|-
| [[NS-84]]
| 05/04/2019
|
| Command-v3, Choppy-v0.5,
|
* Payloads Land in the Potomac River
* Last Command-v3 flight
|-
| [[NS-85]]
| 06/29/2019
|
| Command-v4, FISH-v2
|
* First flight of Command-v4 box with overhauled electronics
* FISH-v2 flight
|-
| [[NS-86]]
| 07/20/2019
|
|
|
|-
| [[NS-87]]
| 08/04/2019
|
|
|
|-
| [[NS-88]]
| 09/21/2019
|
|
|
|-
| [[NS-89]]
| 10/19/2019
|
|
|
|-
| [[NS-90]]
| 11/09/2019
|
|
|
|-
| [[NS-91]]
| 11/16/2019
|
|
|
|-
| [[NS-92]]
| 08/08/2020
|
|
|
|-
| [[NS-93]]
| 08/30/2020
|
|
|
|-
| [[NS-94]]
| 10/10/2020
|
|
|
|-
| [[NS-95]]
| 11/07/2020
|
|
|
|-
| [[NS-96]]
| 03/21/2021
|
|
|
|-
| [[NS-97]]
| 04/17/2021
|
|
|
|-
| [[NS-98]]
| 06/12/2021
|
|
|
|-
| [[NS-99]]
| 07/10/2021
|
|
|
|-
| [[NS-100]]
| 04/09/2022
|
|
|
|-
| [[NS-101]]
| 07/24/2021
|
|
|
|-
| [[NS-102]]
| 08/08/2021
|
|
|
|-
| [[NS-103]]
| 10/02/2021
|
|
|
|-
| [[NS-104]]
| 10/24/2021
|
|
|
|-
| [[NS-105]]
| 11/14/2021
|
|
|
|-
| [[NS-106]]
| 01/10/2022
|
|
|
|-
| [[NS-107]]
| 01/12/2022
|
|
|
|-
| [[NS-108]]
| 01/13/2022
|
|
|
|-
| [[NS-109]]
| 01/16/2022
|
|
|
|-
| [[NS-110]]
| 03/05/2022
|
|
|
|-
| [[NS-111]]
| 07/31/2022
|
|
|
|-
| [[NS-112]]
| 10/16/2022
|
|
|
|-
| [[NS-113]]
| 11/19/2022
|
|
|
|-
| [[NS-114]]
| 12/04/2022
|
|
|
|}

Launches

2022-12-10T08:28:47Z

Bppadmin: /* List of BPP launches */

NS-112

2022-12-10T08:22:10Z

Bppadmin:

NS-112

2022-12-10T08:21:41Z

Bppadmin:

NS-112

2022-12-10T08:21:23Z

Bppadmin:

NS-112

2022-12-09T00:34:49Z

Bppadmin:

NS-112

2022-12-09T00:25:15Z

Bppadmin:

NS-112

2022-12-09T00:24:17Z

Bppadmin:

NS-112

2022-11-04T20:21:05Z

Bppadmin:

File:WHeliosLogo.png

2022-11-04T20:20:45Z

Bppadmin:

testing

Launches

2022-10-22T17:19:47Z

Bppadmin: /* List of pages about BPP launches */

== List of pages about BPP launches ==
* [[NS-1]]
* [[NS-2]]
* [[NS-3]]
* [[NS-4]]
* [[NS-5]]
* [[NS-6]]
* [[NS-7]]
* [[NS-8]]
* [[NS-9]]
* [[NS-10]]
* [[NS-11x]]
* [[NS-12]]
* [[NS-13x]]
* [[NS-14x]]
* [[NS-15]]
* [[NS-16x]]
* [[NS-17]]
* [[NS-18]]
* [[NS-19]]
* [[NS-20]]
* [[NS-21]]
* [[NS-22x]]
* [[NS-23x]]
* [[NS-24]]
* [[NS-25]]
* [[NS-26x]]
* [[NS-27]]
* [[NS-28]]
* [[NS-29]]
* [[NS-30]]
* [[NS-31]]
* [[NS-32]]
* [[NS-33]]
* [[NS-34]]
* [[NS-35]]
* [[NS-36]]
* [[NS-37]]
* [[NS-38]]
* [[NS-39]]
* [[NS-40]]
* [[NS-41]]
* [[NS-42]]
* [[NS-43]]
* [[NS-44]]
* [[NS-45]]
* [[NS-46]]
* [[NS-47]]
* [[NS-48]]
* [[NS-49]]
* [[NS-50]]
* [[NS-51]]
* [[NS-52]]
* [[NS-53]]
* [[NS-55]]
* [[NS-56]]
* [[NS-57]]
* [[NS-58]]
* [[NS-59]]
* [[NS-60]]
* [[NS-61]]
* [[NS-62]]
* [[NS-63]]
* [[NS-64]]
* [[NS-65]]
* [[NS-66]]
* [[NS-67]]
* [[NS-68]]
* [[NS-69]]
* [[NS-70]]
* [[NS-71]]
* [[NS-72]]
* [[NS-73]]
* [[NS-74]]
* [[NS-75]]
* [[NS-76]]
* [[NS-77]]
* [[NS-78]]
* [[NS-79]]
* [[NS-80]]
* [[NS-81]]
* [[NS-82]]
* [[NS-83]]
* [[NS-84]]
* [[NS-85]]
* [[NS-86]]
* [[NS-87]]
* [[NS-88]]
* [[NS-89]]
* [[NS-90]]
* [[NS-91]]
* [[NS-92]]
* [[NS-93]]
* [[NS-94]]
* [[NS-95]]
* [[NS-96]]
* [[NS-97]]
* [[NS-98]]
* [[NS-99]]
* [[NS-100]]
* [[NS-101]]
* [[NS-102]]
* [[NS-103]]
* [[NS-104]]
* [[NS-105]]
* [[NS-106-OK]]
* [[NS-107-OK]]
* [[NS-108-OK]]
* [[NS-109-OK]]
* [[NS-110]]
* [[NS-111]]
* [[NS-112]]

Launches

2022-10-22T17:17:14Z

Bppadmin:

== List of pages about BPP launches ==
* [[NS-1]]
* [[NS-2]]
* [[NS-3]]
* [[NS-4]]
* [[NS-5]]
* [[NS-6]]
* [[NS-7]]
* [[NS-8]]
* [[NS-9]]
* [[NS-10]]
* [[NS-11]]
* [[NS-12]]
* [[NS-13]]
* [[NS-14]]
* [[NS-15]]
* [[NS-16]]
* [[NS-17]]
* [[NS-18]]
* [[NS-19]]
* [[NS-20]]
* [[NS-21]]
* [[NS-22]]
* [[NS-23]]
* [[NS-24]]
* [[NS-25]]
* [[NS-26]]
* [[NS-27]]
* [[NS-28]]
* [[NS-29]]
* [[NS-30]]
* [[NS-31]]
* [[NS-32]]
* [[NS-33]]
* [[NS-34]]
* [[NS-35]]
* [[NS-36]]
* [[NS-37]]
* [[NS-38]]
* [[NS-39]]
* [[NS-40]]
* [[NS-41]]
* [[NS-42]]
* [[NS-43]]
* [[NS-44]]
* [[NS-45]]
* [[NS-46]]
* [[NS-47]]
* [[NS-48]]
* [[NS-49]]
* [[NS-50]]
* [[NS-51]]
* [[NS-52]]
* [[NS-53]]
* [[NS-54]]
* [[NS-55]]
* [[NS-56]]
* [[NS-57]]
* [[NS-58]]
* [[NS-59]]
* [[NS-60]]
* [[NS-61]]
* [[NS-62]]
* [[NS-63]]
* [[NS-64]]
* [[NS-65]]
* [[NS-66]]
* [[NS-67]]
* [[NS-68]]
* [[NS-69]]
* [[NS-70]]
* [[NS-71]]
* [[NS-72]]
* [[NS-73]]
* [[NS-74]]
* [[NS-75]]
* [[NS-76]]
* [[NS-77]]
* [[NS-78]]
* [[NS-79]]
* [[NS-80]]
* [[NS-81]]
* [[NS-82]]
* [[NS-83]]
* [[NS-84]]
* [[NS-85]]
* [[NS-86]]
* [[NS-87]]
* [[NS-88]]
* [[NS-89]]
* [[NS-90]]
* [[NS-91]]
* [[NS-92]]
* [[NS-93]]
* [[NS-94]]
* [[NS-95]]
* [[NS-96]]
* [[NS-97]]
* [[NS-98]]
* [[NS-99]]
* [[NS-100]]
* [[NS-101]]
* [[NS-102]]
* [[NS-103]]
* [[NS-104]]
* [[NS-105]]
* [[NS-106-OK]]
* [[NS-107-OK]]
* [[NS-108-OK]]
* [[NS-109-OK]]
* [[NS-110]]
* [[NS-111]]
* [[NS-112]]

Main Page

2022-10-22T17:09:51Z

Bppadmin:

<strong>MediaWiki has been installed.</strong>

Consult the [https://www.mediawiki.org/wiki/Special:MyLanguage/Help:Contents User's Guide] for information on using the wiki software.

== Getting started ==
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Configuration_settings Configuration settings list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:FAQ MediaWiki FAQ]
* [https://lists.wikimedia.org/postorius/lists/mediawiki-announce.lists.wikimedia.org/ MediaWiki release mailing list]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Localisation#Translation_resources Localise MediaWiki for your language]
* [https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Combating_spam Learn how to combat spam on your wiki]

== BPP Pages ==
* [[Launches]]