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<tr><td width="134" align="left" valign="top"><img src="/wgbh/nova/spiesfly/images/uavs_intro.gif" alt="Predator" width="134" height="109" border="0" /></td> <td width="10"><img src="/wgbh/nova/images02/spacer.gif" alt="" width="10" height="1" border="0" /></td></tr> </table> <p>With their strange silhouettes and awe-inspiring capabilities, today's UAVs, like this Predator, seem to have flown in from the future. But the Predator and the dozen other operational UAVs in the U.S. military arsenal owe their existence to the past. They are only the most recent and advanced installments in a century-old history of unmanned warfare and surveillance from the skies. <b>Click on the UAV icons below to learn more about the Predator and some of its UAV ancestors.</b> —<i> Lexi Krock</i></p> <br /><br /> <table width="465" cellspacing="0" cellpadding="0" border="0"> <tr> <td width="100"><img src="/wgbh/nova/images02/spacer.gif" alt="" width="100" height="1" border="0" /></td> <td width="26"><img src="/wgbh/nova/images02/spacer.gif" alt="" width="26" height="1" border="0" /></td> <td width="179"><img src="/wgbh/nova/images02/spacer.gif" alt="" width="179" height="1" border="0" /></td> <td width="26"><img src="/wgbh/nova/images02/spacer.gif" alt="" width="26" height="1" border="0" /></td> <td width="134"><img src="/wgbh/nova/images02/spacer.gif" alt="" width="134" height="1" border="0" /></td> </tr><tr> <td class="windowborder-h" width="465" colspan="5"> <img src="/wgbh/nova/images02/spacer.gif" alt="" width="465" height="10" border="0" /></td> </tr> <tr align="left"> <td width="100" align="right" valign="top"> <img src="/wgbh/nova/spiesfly/images/uavs_preaviation.gif" alt="Pre-aviation UAVs" width="100" height="42" border="0" /> </td> <td class="windowborder-v" rowspan="9" width="26"><img src="/wgbh/nova/images02/spacer.gif" alt="" width="20" height="1" border="0" /></td> <td width="179" align="left" valign="top"> <p> Years before the first manned airplane flight on December 17, 1903, primitive UAV technology was used for combat and surveillance in at least two wars. </p> <br /> </td> <td class="windowborder-v" rowspan="9" width="26"><img src="/wgbh/nova/images02/spacer.gif" alt="" width="20" height="1" border="0" /></td> <td width="134" align="left" valign="top"> <a href="javascript:cfl_window('uavs_01.html',470,250)"><img src="/wgbh/nova/spiesfly/images/uavs_icon_perley.gif" alt="Perley's Aerial Bomber (USA)" width="134" height="45" border="0" /></a> <a href="javascript:cfl_window('uavs_02.html',470,250)"><img src="/wgbh/nova/spiesfly/images/uavs_icon_eddys.gif" alt="Eddy's Surveillance Kite (USA)" width="134" height="45" border="0" /></a> </td> </tr> <tr align="left"> <td width="100" align="right" valign="top"> <img src="/wgbh/nova/spiesfly/images/uavs_1910.gif" alt="1910s" width="100" height="42" border="0" /> </td> <td width="179" align="left" valign="top"><p> During World War I, the first UAVs took flight in the U.S. Though the success of UAVs in test flights was erratic, the military recognized their potential in combat. Armistice arrived before the prototype UAVs could be deployed in earnest. </p><br /></td> <td width="134" align="left" valign="top"> <a href="javascript:cfl_window('uavs_03.html',470,250)"><img src="/wgbh/nova/spiesfly/images/uavs_icon_sperry.gif" alt="Sperry Aerial Torpedo (USA)" width="134" height="45" border="0" /></a> <a href="javascript:cfl_window('uavs_04.html',470,250)"><img src="/wgbh/nova/spiesfly/images/uavs_icon_kettering.gif" alt="Kettering Aerial Torpedo (USA)" width="134" height="45" border="0" /></a> </td> </tr> <tr align="left"> <td width="100" align="right" valign="top"> <img src="/wgbh/nova/spiesfly/images/uavs_1930.gif" alt="1930s" width="100" height="42" border="0" /> </td> <td width="179" align="left" valign="top"><p> For more than a decade after the end of World War I, development of pilotless aircraft in the U.S. and abroad declined sharply. By the mid-to-late 1930s, new UAVs emerged as an important combat training tool. </p><br /></td> <td width="134" align="left" valign="top"> <a href="javascript:cfl_window('uavs_05.html',470,250)"><img src="/wgbh/nova/spiesfly/images/uavs_icon_queen_bee.gif" alt="DH.82B Queen Bee (UK)" width="134" height="45" border="0" /></a> <a href="javascript:cfl_window('uavs_06.html',470,250)"><img src="/wgbh/nova/spiesfly/images/uavs_icon_radioplane.gif" alt="Radioplanes (USA)" width="134" height="45" border="0" /></a> </td> </tr> <tr align="left"> <td width="100" align="right" valign="top"> <img src="/wgbh/nova/spiesfly/images/uavs_1940.gif" alt="1940s" width="100" height="42" border="0" /> </td> <td width="179" align="left" valign="top"><p> During World War II, Nazi Germany's innovative V-1 demonstrated the formidable threat a UAV could pose in combat. America's attempts to eliminate the V-1 laid the groundwork for post-war UAV programs in the U.S. </p><br /></td> <td width="134" align="left" valign="top"> <a href="javascript:cfl_window('uavs_07.html',470,250)"><img src="/wgbh/nova/spiesfly/images/uavs_icon_v1.gif" alt="V-1 (Germany)" width="134" height="45" border="0" /></a> <a href="javascript:cfl_window('uavs_08.html',470,250)"><img src="/wgbh/nova/spiesfly/images/uavs_icon_pb4y.gif" alt="PB4Y-1 and BQ-7 (USA)" width="134" height="45" border="0" /></a> </td> </tr> <tr align="left"> <td width="100" align="right" valign="top"> <img src="/wgbh/nova/spiesfly/images/uavs_1960.gif" alt="1960s" width="100" height="42" border="0" /> </td> <td width="179" align="left" valign="top"><p> From their early use as target drones and remotely piloted combat vehicles, UAVs took on a new role during the Vietnam War: stealth surveillance. </p><br /></td> <td width="134" align="left" valign="top"> <a href="javascript:cfl_window('uavs_09.html',470,250)"><img src="/wgbh/nova/spiesfly/images/uavs_icon_ryanfirebee.gif" alt="AQM-34 Ryan Firebee (USA)" width="134" height="45" border="0" /></a> <a href="javascript:cfl_window('uavs_10.html',470,250)"><img src="/wgbh/nova/spiesfly/images/uavs_icon_d21.gif" alt="D-21 (USA)" width="134" height="45" border="0" /></a> </td> </tr> <tr align="left"> <td width="100" align="right" valign="top"> <img src="/wgbh/nova/spiesfly/images/uavs_1970.gif" alt="1970s" width="100" height="42" border="0" /> </td> <td width="179" align="left" valign="top"><p> The success of the Firebee continued through the end of the Vietnam War. In the 1970s, while other countries began to develop their own advanced UAV systems, the U.S. set its sights on other kinds of UAVs. </p><br /></td> <td width="134" align="left" valign="top"> <a href="javascript:cfl_window('uavs_11.html',470,250)"><img src="/wgbh/nova/spiesfly/images/uavs_icon_firebeeisrael.gif" alt="Firebee 1241 (Israel)" width="134" height="45" border="0" /></a> <a href="javascript:cfl_window('uavs_12.html',470,250)"><img src="/wgbh/nova/spiesfly/images/uavs_icon_ryanspa.gif" alt="Ryan SPA 147 (USA)" width="134" height="45" border="0" /></a> </td> </tr> <tr align="left"> <td width="100" align="right" valign="top"> <img src="/wgbh/nova/spiesfly/images/uavs_1980.gif" alt="1980s" width="100" height="42" border="0" /> </td> <td width="179" align="left" valign="top"><p> During the late 1970s and throughout the 1980s, the Israeli Air Force, an aggressive UAV developer, pioneered several important new UAVs, versions of which were integrated into the UAV fleets of many other countries, including the U.S. </p><br /></td> <td width="134" align="left" valign="top"> <a href="javascript:cfl_window('uavs_13.html',470,250)"><img src="/wgbh/nova/spiesfly/images/uavs_icon_scout.gif" alt="Scout (Israel)" width="134" height="45" border="0" /></a> <a href="javascript:cfl_window('uavs_14.html',470,250)"><img src="/wgbh/nova/spiesfly/images/uavs_icon_pioneer.gif" alt="Pioneer (USA)" width="134" height="45" border="0" /></a> </td> </tr> <tr align="left"> <td width="100" align="right" valign="top"> <img src="/wgbh/nova/spiesfly/images/uavs_1990.gif" alt="1990s to Today" width="100" height="55" border="0" /> </td> <td width="179" align="left" valign="top"><p> UAVs command a permanent and critical position in high-tech military arsenals today, from the U.S. and Europe to Asia and the Middle East. They also play peaceful roles as monitors of our Earth's environment. </p><br /></td> <td width="134" align="left" valign="top"> <a href="javascript:cfl_window('uavs_15.html',470,250)"><img src="/wgbh/nova/spiesfly/images/uavs_icon_firebird2001.gif" alt="Firebird 2001 (Israel)" width="134" height="45" border="0" /></a> <a href="javascript:cfl_window('uavs_16.html',470,250)"><img src="/wgbh/nova/spiesfly/images/uavs_icon_pathfinder.gif" alt="Pathfinder (USA)" width="134" height="45" border="0" /></a> <a href="javascript:cfl_window('uavs_17.html',470,250)"><img src="/wgbh/nova/spiesfly/images/uavs_icon_darkstar.gif" alt="DarkStar (USA)" width="134" height="45" border="0" /></a> <a href="javascript:cfl_window('uavs_18.html',470,250)"><img src="/wgbh/nova/spiesfly/images/uavs_icon_predator.gif" alt="RQ-1 Predator (USA)" width="134" height="45" border="0" /></a> <a href="javascript:cfl_window('uavs_19.html',470,250)"><img src="/wgbh/nova/spiesfly/images/uavs_icon_hawk.gif" alt="RQ-4 Global Hawk (USA)" width="134" height="45" border="0" /></a> <a href="javascript:cfl_window('uavs_20.html',470,250)"><img src="/wgbh/nova/spiesfly/images/uavs_icon_helios.gif" alt="Helios (USA)" width="134" height="45" border="0" /></a> <br /><br /> </td> </tr> <tr align="left"> <td width="100" align="right" valign="top"> <img src="/wgbh/nova/spiesfly/images/uavs_future.gif" alt="The Future" width="100" height="42" border="0" /> </td> <td width="179" align="left" valign="top"><p> The surveillance UAVs of tomorrow may evolve into MAVs, or micro aerial vehicles, lilliputian spies so tiny they can take off and land in the palm of their operators' hands. The U.S., Great Britain, Korea, and Israel are developing MAVs for surveillance use in the future. </p><br /></td> <td width="134" align="left" valign="top"> <a href="javascript:cfl_window('uavs_21.html',470,250)"><img src="/wgbh/nova/spiesfly/images/uavs_icon_blackwidow.gif" alt="Black Widow (USA)" width="134" height="45" border="0" /></a> </td> </tr> </table>  </td> <td width="200" valign="top">   <table width="200" cellspacing="0" cellpadding="0" border="1"> <tr align="left"> <td align="right" valign="top"> <img src="/wgbh/nova/spiesfly/images/nav_sidehead_suth.gif" alt="Superlative UAVs Through History" width="198" height="24" border="0" /> <table width="198" cellspacing="0" cellpadding="10" border="0"> <tr><td class="caption" align="left" valign="top"> <p class="caption"> Fastest: D-21 (Mach 4)—USA </p> <p class="caption"> Highest: Helios (96,500 ft)—USA </p> <p class="caption"> Biggest (size): Helios (246-ft wingspan)—USA </p> <p class="caption"> Biggest (weight): RQ-4 Global Hawk (25,600 lbs)—USA </p> <p class="caption"> Smallest (size/weight): Black Widow (6-inch diameter/2.0 oz)—USA </p> <p class="caption"> Longest flight (duration): Heron UAV (52 hours)—Israel </p> <p class="caption"> Longest flight (distance): RQ-4 Global Hawk (8,580 miles) - USA </p> <p class="caption"> Most expensive: RQ-4 Global Hawk ($40 million)—USA </p> <p class="caption"> First Trans-Atlantic flight: Aerosonde (Aug. 20-21, 1998)—USA </p> <p class="caption"> First Trans-Pacific flight: RQ-4 Global Hawk (Apr. 22-23, 2001)—USA </p> </td></tr> </table>  </td> </tr> </table>  <br /><br /> <br /><br /> <br /><br />  </td> </tr> <tr> <td align="left" valign="bottom">    <br /><br /><br /> <table width="200" cellspacing="0" cellpadding="0" border="1"> <tr align="left"> <td class="caption" align="right" valign="top"> <img src="/wgbh/nova/spiesfly/images/nav_sidehead_spiesfly.gif" alt="Spies That Fly Web Site Content" width="198" height="24" border="0" /> <table width="198" 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