On Sunday, eight airplanes will fly over the southern Indian Ocean searching for missing Malaysia Airlines Flight 370, said Australian Maritime Safety Authority spokeswoman Andrea Hayward-Maher. That's two planes more than Saturday and the most aircraft involved in the search lead by Australia so far, she said.Sunday's search will be a visual search, AMSA rescue spokesman Mike Barton told reporters. Eyes will take precedence over radar. The planes will base their movements on Chinese satellite images of debris and drift modeling, the AMSA said.