(http://assets.cgsociety.org/nvart/427241_1277952494/1024bound)No emission of harmful gases, it's safe and reliable.
It uses only renewable energy sourses such as solar power, energy of
airscrews and sailing, windpower makes generators and chilling work.
Honeycombed body components dicrease its weight and increase its safety.
Using artificial poles with sales maximise windpower.
The best sollution for transporting people and heavy cargos in short
and long distance as well- guaranteeing continuous delivery.
It's able to fly without stopping for several months, its levitating
ability can add it further functions.
Do you think it's impossible? No, it isn't. Here it is: Airflow Comp
(Special thx the technical translating for my english teacher, Mária Vékonyné Paláncz :) )