They’re such a frequent sight that a University of Hawaii professor calls the state the “rainbow capital of the world.” Right ...

[Photo: Jim Barrett] Battjes moved to Honolulu about 11 years ago, and launched Rainbow Helicopters with a single Robinson R44 and the “spirit of aloha” so vital to life in Hawaii.

They're such a frequent sight that a University of Hawaii professor calls the state the "rainbow capital of the world.".