As aircraft get more expensive and their equipment more delicate, better connections for airdata testing is more than a convenience. One damaged instrument due to a hose falling off will cost far more than having good accessories. On the left is a static spider that grips the aircraft using suction cups and a vacuum pump. On the right is a sample of a complex Pitot-Static Mast fitting, where both ports are provided and internal seals are part of the aircraft specific design.