http://engineeringtv.com/blogs/etv/archive/2008/08/21/v-bat-vtol-uav.aspxMLB Company&#39;s next generation UAV is the V-Bat, a tail-sitter VTOL craft that can take off and land vertically, eliminating the need for a runway or catapult, as well as hover autonomously. For autonomous waypoint navigation, it can transition smoothlyenCommunityServer 2007.1 (Debug Build: 20917.1142)http://engineeringtv.com/blogs/etv/archive/2008/08/21/v-bat-vtol-uav.aspx#29987Fri, 19 Sep 2008 17:18:08 GMT47e16688-3829-4dd3-b275-52b24bfef241:29987D.W.<p>Very awesome, but concern about it being hit down by tanks or anything could be a big problem.</p> <img src="http://engineeringtv.com/aggbug.aspx?PostID=29987" width="1" height="1">http://engineeringtv.com/blogs/etv/archive/2008/08/21/v-bat-vtol-uav.aspx#29913Wed, 10 Sep 2008 20:58:15 GMT47e16688-3829-4dd3-b275-52b24bfef241:29913Forrest<p>Very interesting and informative.</p> <img src="http://engineeringtv.com/aggbug.aspx?PostID=29913" width="1" height="1">http://engineeringtv.com/blogs/etv/archive/2008/08/21/v-bat-vtol-uav.aspx#29912Wed, 10 Sep 2008 17:36:33 GMT47e16688-3829-4dd3-b275-52b24bfef241:29912Herbert H.<p>There is a technology for a variable pitch propeller which is very simple that can be used to improve the operation of the V-BAT. It&#39;s a concept that had been used years ago very successfully, but was outmoded for light aircraft by the current variable pitch propellers on the market.</p> <img src="http://engineeringtv.com/aggbug.aspx?PostID=29912" width="1" height="1">