Weather Balloon 1200 g


Our 1200 g weather balloon is a workhorse that will transport your payload higher than any other 1200 g balloon. Although it is more expensive than the Chinese and Indian weather balloons, its quality is far superior. This enables you to achieve higher altitudes with a smaller weather balloon, less helium, and less overall cost. If you are not satisfied with your 1200 g balloon’s performance, we will send you another 1200 g weather balloon at no additional cost!

Cheap 1200 g balloons have short, fat necks that are challenging to tie off. Our 1200 g weather balloon features a 14 cm long neck with a 3 cm diameter. This makes it a lot easier for your ground crew to tie off the neck after inflating the balloon.


Neck Diameter 3 cm
Burst Altitude 34 to 37 km / 110,000 to 120,000 ft


Balloon Performance

To calculate the optimal amount of helium you need for your balloon and the maximum altitude possible for a given payload mass, see our Balloon Performance Tutorial.


Want to know how soon you can have your Weather Balloon delivered to your doorstep? Visit our Shipping page to find out.


In the summer of 2013 Chad, one of our customers, flew his Eagle Pro on two missions using our 1200 g balloons. On the first flight he topped out at 36,983 m ~ 121,335 ft! On his second flight, the balloon burst at 35,547 m ~ 116,624 ft! You wouldn’t be able to consistently achieve these altitudes with a competitor’s balloon unless you used their 2000 g balloon.


Customer Reviews

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