357ml
Whilst their is some controversy over Bernoulli's work, it is still an easy (sic: lazy?) way to describe lift, and lay people can understand it. Having flown the Islander/Trislander I prefer the acoutic principle of the more noise the aircraft makes the more the surrounding airparticles are excited. This causes friction between the particles, thus generating heat which inturn reduced the airpressure. As the there is more air above the wing than under it, the wing is therefor sucked up. As you reduce the noise you are able to descend.
Alternatively some aircraft such as the Nomad and numerouse helecopters suppliment this design using the ugly theory of lift where the machine is so noisy and ugly even the earth finds then repulsive and a negative form of gravity is put upon such craft by the Gods of good design.
MS