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| *'''Marine tether:''' In order to extend the flight endurance beyond the inherent limitations of latex, Cycloon is developing an tether and floater to rest on the surface of the ocean for days at a time. This architecture was successfully demonstrated in [[SSI-83|CY-1]]. | | *'''Marine tether:''' In order to extend the flight endurance beyond the inherent limitations of latex, Cycloon is developing an tether and floater to rest on the surface of the ocean for days at a time. This architecture was successfully demonstrated in [[SSI-83|CY-1]]. |
| *'''Simulations:''' The need to predict trajectories from California to the Pacific and Atlantic topical basins using the GEFS forecast ensemble has given rise to [[HABSIM]] and its associated work. See also {{slack-channel|balloons-cy-sims}}. | | *'''Simulations:''' The need to predict trajectories from California to the Pacific and Atlantic topical basins using the GEFS forecast ensemble has given rise to [[HABSIM]] and its associated work. See also {{slack-channel|balloons-cy-sims}}. |
− | *'''Payload:''' Ultimately, the purpose of the balloon platform will be to carry low-cost, lightweight radiosondes. See {{slack-channel|balloons-cy-payload}}. | + | *'''Payload:''' Ultimately, the purpose of the balloon platform will be to carry low-cost, lightweight radiosondes. See {{slack-channel|balloons-cy-dropsonde}}. |
| *'''Communications:''' To augment data uplink rates, Cycloon is developing a skywave communications system and protocol in {{slack-channel|balloons-cy-comms}}. | | *'''Communications:''' To augment data uplink rates, Cycloon is developing a skywave communications system and protocol in {{slack-channel|balloons-cy-comms}}. |
| *'''Avionics:''' Core avionics work involving circuit board design and flight code is undertaken in {{slack-channel|balloons-cy-avionics}}. | | *'''Avionics:''' Core avionics work involving circuit board design and flight code is undertaken in {{slack-channel|balloons-cy-avionics}}. |
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| | April 17, 2019 | | | April 17, 2019 |
| | Pigeon Point | | | Pigeon Point |
− | | 60.5 hours | + | | 60 hours, 33 minutes |
| | Demonstration of long-endurance marine tether. Float-only profile. Lost off the coast of San Luis Obispo county. | | | Demonstration of long-endurance marine tether. Float-only profile. Lost off the coast of San Luis Obispo county. |
| |- | | |- |
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| | June 1, 2019 | | | June 1, 2019 |
| | Le Grand | | | Le Grand |
− | | | + | | 3 hours, 52 minutes |
− | | Latex full altitude control. Recovered from near Firebaugh, California on June 1, 2019. | + | | Latex full altitude control. Recovered from near Mendota, California on June 1, 2019. |
| |- | | |- |
| |4 | | |4 |
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| | August 5, 2019 | | | August 5, 2019 |
| | Hollister | | | Hollister |
− | | 2 hours | + | | 2 hours, 0 minutes |
| | Second flight of in-house constructed polyethylene envelope. Recovered from near Tracy, CA on August 31, 2019. | | | Second flight of in-house constructed polyethylene envelope. Recovered from near Tracy, CA on August 31, 2019. |
| |- | | |- |
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| | Hollister | | | Hollister |
| | 9 hours, 28 minutes | | | 9 hours, 28 minutes |
− | | First polyethylene tubing envelope. First SSI ZPB flight with full telemetry. First interstate Cycloon flight --- recovery from near Alamo, NV pending. | + | | First polyethylene tubing envelope. First SSI ZPB flight with full telemetry. First interstate Cycloon flight. Final location near Alamo, NV. |
| + | |- |
| + | |7 |
| + | ! [[SSI-93]] |
| + | | October 27, 2019 |
| + | | Hollister |
| + | | 4 hours, 4 minutes |
| + | | First ballast-controlled ZPB. Eventful launch and post-landing. Final location near Tulare, CA. |
| + | |- |
| + | |8 |
| + | ! [[SSI-97]] |
| + | | November 17, 2019 |
| + | | Pigeon Point |
| + | | N/A |
| + | | Extensive ZPB ground tests. |
| |} | | |} |
| | | |
| | | |
| [[Category: High Altitude Balloons]] | | [[Category: High Altitude Balloons]] |