team c presentation final
TRANSCRIPT
The SpiderJosh Elmhorst, David ZuehlkeDaniel Llewellyn, Jiwon KimAdam Offord, Jacob Darnell
Raul Yazdani, James Daugherty Andrew Walston
Introduction
Our main goal was to go higher than 90,000 feet and to be faster than the other balloons.
We accomplished all of our goals.
We achieved a height of 102,741
Cont…
Our three design objectives are organized in this order:
1) Height
2) Reliability
3) Data Quality
Goals for the Dynamics Team
Choose a balloon that can carry the package payload (about 1200 g).
●Calculate an ascent rate and gas fill volume.●Choose a parachute for the descent.
Balloon and ascent rate●Balloon Choice : 800 gram
→Package payload is roughly 1.2 kg.●Ascent rate : 5.6 m/s.
Parachute
Parachute: 48-inch pilot parachute
(1) The descent rate is approximately 4.48 m/s
(2) The descent time will be about 75 min.
Survivability▪ Materials Used
▪ Styrofoam box.▪ Eggcrate mattress topper foam padding.▪ Dog leash clip for parachute and balloon attachment.▪ Hand warmers
ElectronicsGoals Estimate the amount of time the camera and GPS will need to run for and
make sure the batteries will keep them running that long.
Estimate the temperature the electronics will face and make sure they can handle those extremes.
Take good pictures of the curvature of the earth.
Camera: GoPro Hero2
GPS: Micro-Trak RTG FA
Batteries: 10 Ultimate Lithium Batteries
Tracking method:
http://aprs.fi -google earth based tracking website
Tiny Trac 3
Habub mobile app
Telescope on top of parking garage
Actual Launch Trajectory
0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00 160.000
5000
10000
15000
20000
25000
30000
35000 KD7MS-12 Launch dataKD7MS-12 Altitude
Time after Launch (min)
Altit
ude
(m)
Conclusion
Light weight for ease of lift
Large balloon for fast assent
Durable equipment to handle the high speeds