This is "The Wealthy", a super fast airplane for Airheart. It's not only the most expensive one (until now), but also the fastest. All the rich kids like it!
"The Turret" is one of the 5 first airplanes for Airheart. It lets you stand still for shooting for extra accuracy. Take a look from the side, it looks veeery fancy!
"The Rammer" is a very robust airplane for Airheart. It can take a lot of damage and lets you get very close to your enemies so that you can... ram them.
This is "The Hunter", a deadly airplane for Airheart. It's more expensive than the Starter, but it's extremely good for hunting skyfish and fighting with pirates.
This is "The Starter", the first airplane for Airheart. It's the first plane you'll fly in the game, and thus very basic. But it's always there for you ;).