of money. australia s chief air accident investigator says a long search and salvage mission could cost up to $234 million. today, more bad news for families searching for answers. tests from a suspected oil slick found on the water sunday show the oil was not from the missing plane. families still worry the investigators are searching in the right place. they re only looking in one place and they re putting all their eggs in within basket. they ve really laid everything they ve got on this one thing, hoping that they hit a home run. but what if they don t? you know, how much time have we lost? now, investigators do not find any aircraft wreckage in the area they re searching, it, of course, is a major setback, but they are back to square one. the next phase could be moving out along the arcs created by those satellite handshakes. the problem, of course, the larger the underwater search area, the longer it will take. huge problem, indeed. pamela, stand by. i want to go live to th
let-down. they are only looking in one place and they are putting all of their eggs in one basket. they have laid everything they have on this one thing hoping that they hit a home run and what if they don t? how much time have we lost? so if investigators do not find any aircraft wreckage in the area that they are searching, it s a major setback, of course, but they are not back to square one. the next phase could be moving down by the arcs created by the satellite handshakes. the problem is, the larger the search area, the longer it will take. just heartbreaking for the families into today s search for flight 370 involved 12 aircraft and 11 ships and not to mention the bluefin-21 and the countless men and women involved. none of those things come for free. today we re finally getting an idea of the price tag. our senior international correspondent nic robertson is
happens when passenger jets crash. from the tragic and unexpected like last year in san francisco to the planned and controlled like this demonstration by the discovery channel in 2012 and this one from nasa and the faa decades ago. unlike the missing malaysian airlines flight 370, they all crashed on land. surprisingly, they provide clues to what might happen next in the investigation. you re telling me crashing on water is no different than crashing on land? depending on your impact velocity, depending on your impact angle, the effects could be the same between water and land. reporter: aviation safety expert and crash investigator anthony brickhouse takes me through a field of aircraft wreckage used for teaching at embree riddle university. the difficulty of finding a sonar single of flight 370 s wreckage depends on what was happening in the final seconds
different than crashing on land? depending on your impact velocity, depending on the impact angle, the effects could be the same on water and land. aviation investigator anthony brickhouse takes me through a field of aircraft wreckage used at the university. the lesson learned here, the difficulty of finding a sonar signal of flight 370 s wreckage depends on what was happening in the final seconds of flight. at less than 45 degrees we re more likely to see large pieces of aircraft? yes, at something less than 45 degrees or around 45 degrees with the typical velocity that an aircraft would be let s say landing at there would be a chance the plane could be relatively intact after it hit the water. under this scenario, the 777 could be moving as slowly as 70 miles an hour on impact. at a shallow angle it could be
shouting. this was delayed. these fed up families, you see them here? they stormed out of this briefing. what are the challenges here? earlier the head said the sonar device will help move the searchers step further but he stopped short of pinning all hopes on the suv. i would caution you that the deployment will result in the detection of aircraft wreckage. however, this is the best lead we have and it must be pursued vigorously. she is back on a boat for this live demonstration of the sonar technology. so as we talk about the auvs, and we talk about sonar, that s