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Buoyancy Units are used to measure buoyancy.

One BU is able to lift 0.84 units of weight (found experimentally).

Achieving weightlessnessEdit

In order to find the needed buoyancy a given formula is used:

B = 1.19 * W where:

  • B is the needed buoyancy.
  • W is the total weight of the craft.

A common mistake is not taking into account the weight of the balloons thus creating many misconceptions.

In order to find the needed buoyancy for a given raw weight this formula is used:

B = 1.19 * (R + 0.22 * N) where

  • B is the needed buoyancy.
  • R is the raw weight of the craft.
  • N is the number of balloons used.

1.19 is a constant for converting buoyancy into weight. 0.22 is the mass of a balloon. Both are found experimentally. Currently no correlations to mathematical and physical constants (eg. pi, e, g, etc.) are found yet.

See alsoEdit