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helium

This is to make measurements on the helium that we use.

http://www.airproducts.com/Products/Gases/gas-facts/conversion-formulas/weight-and-volume-equivalents/helium.aspx

What we have used: https://www.gas-uk.co.uk/helium-10-litre.html

Working out how much we need:

Using the chart from https://ukhas.org.uk/guides:balloon_data?s[]=helium we've calculated using a 1000 totex balloon that we need 2.23 cu. m for a 500g payload. This translates to 3 litres of liquid helium. We would buy the 10 litre bottle from Gas-Uk, which should be enough for three flights.

helium.txt · Last modified: 2019/03/31 11:24 by harvy