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Would more lift be provided by a fluid with a greater density than air?
The force of lift on a wing depends on four factors: the coefficient of lift, the density of the fluid, the velocity of the fluid and the wing area. The force of lift is directly proportional to the density of the fluid, which means that the greater its density, the greater the lift. Therefore, if all the other factors are the same, more lift would be provided by a fluid with a greater density than air.