"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 ;).