Instructables

My Space Balloon: Project Stratohab Success!! High School Student's Budget

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Step 4: Balloon

Picture of Balloon
I love balloons. But these ballons are not party balloons. They are serious stuff. Weather balloons reach altitudes of 100,000 ft and they are perfect for this project. If I were to do this 10 years ago, weather balloons wouldn't be as available as they are today. Costs for near space ballooning, especially GPS, have come down in recent years.

I searched a while on the internet to find a really good weather balloon. Since it is pretty easy for me to buy things off Amazon.com, I opted for the "more expensive" yet "more reliable" weather balloon from this trusted source. [1]

In comparison to other weather ballons. This one is quite small, but it will suit our needs. Here's some specs on the balloon:

Diameter at release = 6 ft. Diameter at burst altitude = 20 ft. Volume at release = 50-100 cuft. Nominal Lift = 3.8 lbs. Maximum Lift = 12 lbs. Neck diameter = 2.8 inches. Neck length = 9 inches. Ascent rate = 1000 ft/min. Burst altitude = 100,000 ft. Material = Natural latex

If you're short on cash, these ballons go for as low as $45 from other places.

[1] http://www.amazon.com/gp/product/B004RK2RAU/ref=ox_sc_act_title_8?ie=UTF8&m=A2C0B4PGAFXTRE
 
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