Technical correction: with aeroplanes the pointy end is at the back.
For reasons only undestood by experts in fluid mechanics, boats are sharp at the front and blunt at the back wheras aeroplanes are built the other way round. I think it must be something to do with elfinsafety as they push them through the factory.
They're not even consistent with aircraft though. Granted a 747 is pretty blunt at the front, but then a Concorde is more pointy than a pointy thing with added pointyness. And as for military fast jets...
Maybe fluid dynamicists are still getting to trying to get to grips with the which end is which.