Silent Zombie Kill Seaplane: Fly Nano Stealth Electric
This nifty one-person seaplane has made its first test flight with a battery powered electric motor. It is so quiet that you can dive-bomb a zombie nest in broad daylight, and they'll never hear you coming. Base price is $34,000.
Wing guns and bomb mounts are extra.
Fly Nano News Blog_via_Gizmag
Flynano main website
The electric version has a relatively short range, so be sure not to let your batteries run down in the middle of a zombie attack.