Once again Royal Australian airforce planes head out from this small airbase in western Australia to join the search for the Malaysia airliner jet.<br/> <br />China has also sent out substantial forces to look for debris from flight MH370, which vanished shortly after takeoff from Kuala Lumpur 18 days ago.<br/> <br />Heavy rain and wind on Tuesday forced the suspension of the search.<br/> <br />But as the weather improves it's hoped that some wreckage may be found soon to help solve the mystery of why the plane veered thousands of kilometres off course.<br/> <br />Officials are now sure the jet crashed in the southern Indian Ocean.<br/> <br />Australia, the country closest to the search zone, has played a major role in the search.<br/> <br />In Canberra politicians observed a minute of silence to pay tribute to the 239 passengers on board.<br/> <br />(SOUNDBITE) (English) AUSTRALIAN PRIME MINISTER TONY ABBOTT SAYING (PART OVERLAID WITH SHOT 3, 4 AND 5):<br/> <br />"I move that the house records its deep regret at the tragic
