What can in say, i like being different. Anywho, "air rail" means its up in the sky, with planes, not below in water or land with subs or tanks. And i think i spelled "air rail" wrong. It should be Ariel, my bads people! 
OK I'll do this s l o w l y.
Its A E R I A L and it's actually quite a versatile word.
# in or belonging to the air or operating (for or by means of aircraft or elevated cables) in the air; "aerial particles"; "small aerial creatures ...
# growing in air; "aerial roots of a philodendron"
# forward pass: a pass to a receiver downfield from the passer
# antenna: an electrical device that sends or receives radio or television signals
# aeriform: characterized by lightness and insubstantiality; as impalpable or intangible as air; "figures light and aeriform come unlooked for and melt away"- Thomas Carlyle; "aerial fancies"; "an airy apparition"; "physical rather than ethereal forms"
Ariel was a mermaid and just for the record, Arial is a font.
