Do helicopters need a class B entry clearance when air / hover taxiing? You're a helicopter pilot at a class B airport. You'd like to taxi to another parking spot. The ground controller could either give you a hover taxi clearance or an air taxi clearance, depending on the situation. Either way will get you off the ground and (technically) gets you to enter the class B airspace. Would you need to obtain a class B entry clearance prior to requesting your taxi clearance?
No. Hover taxiing with a helicopter follows the same regulations as taxiing with an aircraft (or helicopter) on wheels.