RAAF personnel waving in another search and rescue plane
Media playback is unsupported on your device

Plane search 'most difficult in aviation history'

27 March 2014 Last updated at 11:09 GMT

The search for the missing Malaysia Airlines plane has been called off because of bad weather, but even when conditions are better it is hard going.

The BBC's Jonathan Head, reporting from Pearce Air Force Base in Perth, says aviation experts have referred to the task as "probably the most difficult search in modern aviation history".