AIR SAFETY HAZARD ASSOCIATED WITH THESE CRAFT, NO NOTAM PUBLISHED WARNING PILOTS. STEALTH AIRCRAFT OPERATING FROM GUAM AND USING DARWINWHILST CONDUCTING RESEARCH FLIGHT FOR VUFORS LOOKING FOR UFO/UAP PHENOMENA ENCOUNTERED BLACK, BLURRY DISK RUSHING BACKWARDS AND FORWARDS IN FRONT OF AIRCRAFT AND THEN TO STARBOARD SIDE AND BACK. ALTITUDE 2500' FEET AMSL - OVER EILDON WEIR NEAR POWER STATION AND HIGH TENSION TRANSMISSION LINES. HEADING NE AT TIME. LAT 37 20 1 S, 145 55 1 E. CAPTURED ON DIGITAL CAMERA IN MOVIE MODE. THE DATE OF THIS MISSION WAS 21/7/06. On the 29/8/06 I CONDUCTED ANOTHER EILDON FLIGHT LOOKING FOR THESE THINGS AND USING A DIFFERENT DIGITAL CAMERA CAPTURED 5 MORE BLACK BLURRY DISKS RUSHING AROUNG MY AIRCRAFT. REPORTED IN DETAIL TO NARCAP (TOOK OVER 6 HOURS TO FILL IN THEIR REPORT FORMS AND SHEETS). DON'T WANT TO EVER DO THAT AGAIN. HERE IN VICTORIA GRAMPIANS AREA SUBJECT TO UFO FLAP THE PAST 4 YEARS WITH SIGHTINGS ACROSS THE STATE BY MEMBERS OF THE PUBLIC AND FOLK FROM UFO GROUPS LIKE OURS (VUFORS AND AFORNVIC).