Eli5: Why aren’t liquids allowed on planes when the plane sells drinks? If it’s a private plane, am I allowed to bring drinks?
If you own the plane you can bring anything you want.
If you do not own the plane you can only bring what the plane owner or the Pilot In Command will allow.
For example, I travel with the owner of a company regularly and he owns the planes we travel in. He brings his guns, and ammunition with him without issue since he owns the plane.
I bring single malt Scotch whiskey because the owner allows me to bring my chosen drink to consume after we are done wherever we might be.
Mind you we do NOT go through the regular airport terminal, we go through a private terminal that does not check for such things as they are not required in the private/gneral aviation side.
There are multiple liquid chemicals that appear clear and odorless like water that can be detonated through striking them or by mixing them with water or other clear odorless chemicals, or worse they can form toxic gasses that will kill everyone onboard a plane. The drinks brought in by flight staff are basically directly from the manufacturer and sealed with a temper evident method. Making it harder to smuggle anything into a plane that wasn’t bottled as is in the factory.
So it’s simply a method to prevent a terrorist attack. But no, private planes are not subject to the same passenger scrutiny as larger commercial ones. TSA regulations exempt planes under a certain max passenger amount from requiring their passengers to be screened by the TSA.
Liquids aren’t disallowed simply because they are liquids. They don’t inherently pose a hazard just by nature of being liquid. No, the issue is allowing unknown or otherwise mysterious liquids onboard that may be masquerading as a different type of liquid, including hazardous, poisonous, or explosive liquids. All of the sold and distributed liquid onboard the aircraft is known, secure, and vetted. They just don’t want you bringing random liquids onboard without knowing their potential effects or dangers.
Drinks sold inside security and on planes are screened. The issue was liquid explosives that were attempted to be used.