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We report the detection of several new circumstellar disks seen in silhouettein the outskirts of the Orion nebula and M43, detected as part of our Halphasurvey of Orion with the HST/ACS. Several of the disks show bipolar reflectionnebulae, microjets, or temporal variability. Two disks in our sample are largeand particularly noteworthy: A nearly edge-on disk, d216-0939, is locatedseveral arcminutes northwest of M43 and resembles the famous HH30 disk/jetsystem in Taurus. It drives the 0.15 pc long bipolar outflow HH667, andexhibits a remarkable asymmetric reflection nebula. With a diameter of 1200 AU,it is as large as the giant edge-on silhouette disk d114-426 in the core of theOrion Nebula. The large disk d253-1536 is located in a binary system embeddedwithin an externally-ionized giant proplyd in M43. The disk exhibitsdistortions which we attribute to tidal interactions with a companion. Thebipolar jet HH668 emerges orthogonal to the disk, and a bow shock lies 54''south of this binary system along the outflow axis. Proper motions over 1.4 yrconfirm that these emission knots are moving away from d253-1536, with speedsas high as 330 km/s in the HH668 microjet, and slower motion farther from thestar.Comment: 19 pages, Fig 2 in color, accepted by A

New Silhouette Disks with Reflection Nebulae and Outflows in the Orion Nebula and M43