Prevention of the catastrophes
Aircraft "Cylinder" is most suitable for circumterraneous and Space transportations. Under condition of enough preliminary detection of a dangerous asteroid it is used against asteroids. The technology of control Gravity and Inertia of the gravekettle (look Aircraft "Cylinder") allows to exclude shocks of the gravekettle against Earth at its landing or at its mooring to an asteroid. It allows also at a pursuit of the dangerous asteroid, which able to move with velocity V2 (look Aircraft "Cylinder"), to catch up with it for account of the gravekettle velocity, greater of the asteroid velocity. By that the flight direction of the gravekettle is provided with the resorts featured in the (Aircraft "Ambrella").