Changes

{{balloonlaunch

{{balloon-launch

| img link = rsz_ssi-22.png  

| launch date = May 31 2015, 8:32pm PDT  

| img link = File:rsz_ssi-22.png

| launch date = May 31 2015, 8:52pm PDT  

| launch site = Laird Park, Modesto, CA  

| launch site = Laird Park, Modesto, CA  

| launch coordinates = 37.56158, -121.14993  

| launch coordinates = 37.56158, -121.14993  

| flight duration = 24 hrs, 3 minutes  

| flight duration = 23 hrs, 3 minutes  

| landing date = June 1 2015, 8.35pm PDT

| landing date = June 1 2015, 7:55pm PDT

| landing coordinates = 49.88690, -104.50746}}

| landing coordinates = 49.88690, -104.50746

}}

SSI-22 was the 22nd launch of SSI Balloons. Flying for a over 23 hours through 5 US states and southern Canada, it was SSI Balloons' first international flight. The launch was a phenomenal demonstration of the ValBal technology that had been in development for months within SSI. The payload maintained altitude within 12km and 14km as per pre-programmed instructions, and managed to do so autonomosuly - not to mention maintain this altitude in the midst of a thunderstorm without a hitch. SSI-22 landed in Saskatchewan after an approximately 24 hr flight.

SSI-22 was the 22nd launch of SSI Balloons. Flying for over 23 hours through 5 US states and southern Canada, it was SSI Balloons' first international flight. The launch was a phenomenal demonstration of the [[Valve Ballast Altitude Control | ValBal technology]] that had been in development for months within SSI. The payload maintained altitude within 12km and 14km as per pre-programmed instructions, and managed to do so autonomosuly - not to mention maintain this altitude in the midst of a thunderstorm without a hitch. SSI-22 landed in Saskatchewan after an approximately 24 hr flight.

== Pre-Launch ==

== Pre-Launch ==

== Debriefing ==

== Debriefing ==

The ability of the balloon to maintain altitude on its own through almost the entire flight to such precision was a testament to the resilience of the technology. Problems encountered include:

The ability of the balloon to maintain altitude on its own through almost the entire flight to such precision was a testament to the resilience of the technology. Nevertheless, problems were encountered, including the following:

*The power draw for heating was quite high; the battery started at a voltage of ~ 4.34 V and was around ~ 3.40 V upon landing. 3.20 V is the point at which the flight control system ceases to function; thus, for longer flights, more power is needed. Proposed improvements included more battery storage and, more importantly, solar panels for power regeneration.  

*The power draw for heating was quite high; the battery started at a voltage of ~ 4.34 V and was around ~ 3.40 V upon landing. 3.20 V is the point at which the flight control system ceases to function; thus, for longer flights, more power is needed. Proposed improvements included more battery storage and, more importantly, solar panels for power regeneration.  

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[[Category: High Altitude Balloons]]

[[Category: High Altitude Balloons]][[Category: Balloon Launches]][[Category: ValBal Launches|22]]