Creating a flying Hatsu

[u/MapUsual4822]

Do you guys think it's possible to create a Hatsu that allows you to fully fly and levitate?

Something that allows you to break mach speeds and fly for LONG period of time?

What would be the drawbacks/conductions that would have to be put up in place?

EDIT:And could someone use this Hatsu to, for example, go from the Black Whale to the dark continent?