slowrotor,
Please don't think that I'm suggesting you consider ballooning as an alternative to rotorcraft or other potential means of VTOL.

. It is only meant to be humor from the free-thinking of a demented mind.
On further thought, if the Russians can do something to the surface of the torpedoes so that the travel at 200 knots per hour in water, perhaps something can be done to the surface of dirigibles so that they travel at 200 knots per hour in air.
Dave