MM05 -2018-06-20

Tracker Details

Tracker Type: APRS

Model: PicoTracker1Rev2

Powered by 2 AAA batteries

Configuration:

msBetweenTransmits = 3000 (3s, 0m, 0h)

lhAltFtThreshold = 10000

hAlt.wakeAndEvaluateMs = 600000 (600s, 10m, 0h)

lAlt.wakeAndEvaluateMs = 30000 (30s, 0m, 0h)

lAlt.stickyMs = 10800000 (10800s, 180m, 3h)

dz.wakeAndEvaluateMs = 7200000 (7200s, 120m, 2h)

Launch Parameters

Balloon and Payload

• 36" Qualatex, unstretched
• 30.8 gram payload
• 2.7 grams free lift

Actuals

• Top Altitude - 15,230 ft
• Duration - 3 hours, 20 minutes
• Distance - 19 miles straight line
• Cause of death - Helium leak caused slow descent

General Thoughts / Observations

One of the best slow and steady ascents, the balloon reached 15,230 feet then started a slow descent with a final water landing in Gasparilla Sound.

The seal at the balloon neck may not have been adequate.

Thoughts for next time

Stick with low free lift.

Seal balloon hole prior to folding.