(1) The helicopter was airborne for only a minute when it started plunging toward the river.(2) No microalgae have so far been found and the ministry is now also gathering air samples to see whether the problem is airborne .(3) The rain was so heavy at times that the helicopters had trouble getting airborne .(4) There's a great difference between an airborne aircraft and a wreck.(5) After the plane was airborne , the flight attendant came around for drink orders.(6) As soon as we were airborne , an obviously stressed stewardess addressed me by my first name.(7) Wing heat, on the other hand, could do damage on the ground and is only available when airborne .(8) However, a nasty airborne variant of influenza would be something else.(9) The aircraft remained airborne for a total of 24 hours, dropping 35,000 food parcels.(10) Once airborne , though, one's flight path is entirely at the whim of the wind.(11) Fortunately, none of us had any idea of the events that would transpire once airborne .(12) By the time an enemy force was nearing our coastline, our fighters would be airborne and ready to fight.(13) Experts said a contaminated vehicle may have spread the disease, but airborne transmission over such a distance is not unknown.(14) They are huge birds, up to a metre tall and 16 kg in weight, making them the heaviest airborne birds in the world.(15) This reduction is particularly true for airborne particles that can be measured by looking at levels of Black Smoke.(16) Visitors have been told not to bring fruit and flowers in case they transmit the airborne virus and strict visiting times are being enforced.