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*'''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}}.
*'''ZPB:''' Polyethylene envelopes have intrinsically more desirable properties compared to latex envelopes. In-house manufacture of such envelopes is being explored in {{slack-channel|balloons-cy-zpb}} and was first demonstrated in [[SSI-90|CY-4]].
*'''ZPB:''' Polyethylene envelopes have intrinsically more desirable properties compared to latex envelopes. In-house manufacture of such envelopes is being explored in {{slack-channel|balloons-cy-zpb}} and was first demonstrated in [[SSI-90|CY-4]].
*'''Platform:''' Design and production of the primary vent and ballast mechanisms is undertaken in {{slack-channel|balloons-cy-platform}}.
==Missions==
==Missions==
{| class="wikitable" style="margin: auto;"
{| class="wikitable" style="margin: auto;"
| Le Grand
| Le Grand
|
|
| Latex full altitude control. Recovered from near Firebaugh, California.
| Latex full altitude control. Recovered from near Firebaugh, California on June 1, 2019.
|-
|-
|4
|4
| Hollister
| Hollister
| 2 hours
| 2 hours
| Second flight of in-house constructed polyethylene envelope. Final location near Tracy, CA; recovery pending.
| Second flight of in-house constructed polyethylene envelope. Recovered from neat Tracy, CA on August 31, 2019.
|}
|}
[[Category: High Altitude Balloons]]
[[Category: High Altitude Balloons]]