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Jul 05, 2017, 07:03 PM
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Lift of a Rigid Airship

Hello, I have designed a balsa zeppelin based on the USS Akron/Macon designs, without electric stuff and rudders it has a static lift of 197 grams with Helium and 257 grams with Hydrogen, and I was wondering, how much static lift is needed to lift a model off the ground? Does it just need at least 1 gram of lift or does it need 200? (Also I didn't see a rigid airship forum, hopefully this works)
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Jul 06, 2017, 01:13 AM
Melbourne, Australia
Hi Crayex,

1 gram will do just fine... in fact, if you want level flight, you'll need to ballast it so that it has roughly 0 grams lift!

However I've found a host of factors such as temperature, pressure and humidity will effect the lift on any particular day, possibly by as much as +/- 5% - so it's good to design in a margin :-).

- Chris

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