{"id":1030,"date":"2019-12-06T15:51:04","date_gmt":"2019-12-06T15:51:04","guid":{"rendered":"http:\/\/pimaair.wpengine.com\/?post_type=museum_aircraft&#038;p=1030"},"modified":"2019-12-24T16:58:04","modified_gmt":"2019-12-24T23:58:04","slug":"lockheed-d-21b","status":"publish","type":"museum_aircraft","link":"https:\/\/pimaair.org\/museum-aircraft\/lockheed-d-21b\/","title":{"rendered":"Lockheed D-21B"},"content":{"rendered":"<h1>Lockheed D-21B<\/h1>\n<p><a href=\"wp-content\/uploads\/2019\/11\/Lockheed-D-21B.jpg\"><img decoding=\"async\" src=\"wp-content\/uploads\/2019\/11\/Lockheed-D-21B.jpg\" alt=\"A picture of the Lockheed D-21B\"><\/a><\/p>\n<div>\n<p>One of the least known members of a family of aircraft that includes the SR-71 is the D-21 reconnaissance drone.\u00a0 The drone was designed to be launched from the back of a modified A-12, the first version of the Blackbird.\u00a0 A ramjet engine that requires very high speeds to operate powers the D-21 and the Blackbird was the only aircraft capable of the speed required.\u00a0 Initial testing began in 1963, however the drone was not released from the carrier aircraft in flight until March 1966.\u00a0 Three successful test flights were made, but on the fourth flight the drone crashed into the launch plane and one of the two crewmen was killed.\u00a0 The drone was redesigned and fitted with a booster rocket to generate the speed needed for engine operation.\u00a0 In this configuration, it could be launched from a pylon mounted on the wing of a B-52.\u00a0 Testing of this version began in 1967 and eventually four unsuccessful operational missions were flown over China.\u00a0 The program was canceled in 1971.<\/p>\n<\/div>\n<table>\n<tbody>\n<tr>\n<td>Wingspan<\/td>\n<td>19 ft 9 in.<\/td>\n<td>\n<p><strong><span style=\"color: #2387c3;\">Wingspan<\/span><\/strong><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>Length<\/td>\n<td>42 ft 10 in.<\/td>\n<td>\n<p><span style=\"color: #2387c3;\"><strong>Length<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>Height<\/td>\n<td>7 ft<\/td>\n<td>\n<p><span style=\"color: #2387c3;\"><strong>Height<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>Weight<\/td>\n<td>11,000 lbs (loaded)<\/td>\n<td>\n<p><span style=\"color: #2387c3;\"><strong>Weight<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>Max. Speed<\/td>\n<td>2,500 + MPH (Mach 4 +)<\/td>\n<td>\n<p><span style=\"color: #2387c3;\"><strong>Maximum Speed<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>Service Ceiling<\/td>\n<td>90,000 + ft<\/td>\n<td>\n<p><span style=\"color: #2387c3;\"><strong>Service Ceiling<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>Range<\/td>\n<td>3,000 + miles<\/td>\n<td>\n<p><span style=\"color: #2387c3;\"><strong>Range<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>Engines<\/td>\n<td>One Marquardt XRJ43-MA-20 ramjet with 1,500 pounds of thrust<\/td>\n<td>\n<p><span style=\"color: #2387c3;\"><strong>Engine<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>Crew<\/td>\n<td>None<\/td>\n<td>\n<p><span style=\"color: #2387c3;\"><strong>Crew<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr>\n<div>\n<p><span style=\"color: #2387c3;\"><strong>Manufacturer<\/strong><\/span><br \/>Lockheed<\/p>\n<p><span style=\"color: #2387c3;\"><strong>Markings<\/strong><\/span><br \/>4200<sup>th<\/sup> Support Squadron, Beale AFB, California, 1971<\/p>\n<\/div>\n<div>\n<p><span style=\"color: #2387c3;\"><strong>Serial Number<\/strong><\/span><br \/>533<\/p>\n<p><span style=\"color: #2387c3;\"><strong>Designation<\/strong><\/span><br \/>D-21B<\/p>\n<\/div>\n<p><!-- {\"name\":\"Aircraft Layout - Final\",\"type\":\"layout\",\"children\":[{\"type\":\"section\",\"props\":{\"style\":\"default\",\"width\":\"default\",\"vertical_align\":\"middle\",\"title_position\":\"top-left\",\"title_rotation\":\"left\",\"title_breakpoint\":\"xl\",\"image_position\":\"center-center\",\"text_color\":\"\",\"width_expand\":\"\",\"height\":\"\",\"padding\":\"\",\"header_transparent\":\"\",\"animation\":\"\"},\"children\":[{\"type\":\"row\",\"props\":{\"layout\":\"1-1\",\"breakpoint\":\"m\",\"fixed_width\":\"large\",\"column_gap\":\"\",\"row_gap\":\"\",\"width\":\"\",\"width_expand\":\"\",\"height\":\"\",\"margin\":\"\"},\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"vertical_align\":\"\",\"style\":\"\",\"text_color\":\"\",\"padding\":\"\"},\"children\":[{\"type\":\"headline\",\"props\":{\"title_element\":\"h1\",\"title_style\":\"\",\"title_decoration\":\"divider\",\"title_font_family\":\"\",\"title_color\":\"\",\"position\":\"\",\"position_z_index\":\"\",\"margin\":\"\",\"maxwidth\":\"\",\"maxwidth_breakpoint\":\"\",\"block_align\":\"\",\"block_align_breakpoint\":\"\",\"block_align_fallback\":\"\",\"text_align\":\"\",\"text_align_breakpoint\":\"\",\"text_align_fallback\":\"\",\"animation\":\"\",\"visibility\":\"\",\"content\":\"Lockheed D-21B\"}}]}]},{\"type\":\"row\",\"props\":{\"layout\":\",\",\"breakpoint\":\"m\",\"fixed_width\":\"large\",\"column_gap\":\"\",\"row_gap\":\"\",\"width\":\"\",\"width_expand\":\"\",\"height\":\"\",\"margin\":\"\"},\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"vertical_align\":\"\",\"style\":\"\",\"text_color\":\"\",\"padding\":\"\"},\"children\":[{\"type\":\"image\",\"props\":{\"margin\":\"default\",\"image_svg_color\":\"emphasis\",\"link_target\":\"\",\"image_border\":\"\",\"image_box_shadow\":\"\",\"image_hover_box_shadow\":\"\",\"image_box_decoration\":\"\",\"position\":\"\",\"position_z_index\":\"\",\"maxwidth\":\"\",\"maxwidth_breakpoint\":\"\",\"block_align\":\"\",\"block_align_breakpoint\":\"\",\"block_align_fallback\":\"\",\"text_align\":\"\",\"text_align_breakpoint\":\"\",\"text_align_fallback\":\"\",\"animation\":\"\",\"visibility\":\"\",\"image\":\"wp-content\\\/uploads\\\/2019\\\/11\\\/Lockheed-D-21B.jpg\",\"link\":\"wp-content\\\/uploads\\\/2019\\\/11\\\/Lockheed-D-21B.jpg\",\"image_alt\":\"A picture of the Lockheed D-21B\"}},{\"type\":\"text\",\"props\":{\"margin\":\"default\",\"column_breakpoint\":\"m\",\"text_style\":\"\",\"text_color\":\"\",\"text_size\":\"\",\"column\":\"\",\"position\":\"\",\"position_z_index\":\"\",\"maxwidth\":\"\",\"maxwidth_breakpoint\":\"\",\"block_align\":\"\",\"block_align_breakpoint\":\"\",\"block_align_fallback\":\"\",\"text_align\":\"\",\"text_align_breakpoint\":\"\",\"text_align_fallback\":\"\",\"animation\":\"\",\"visibility\":\"\",\"content\":\"\n\n<p>One of the least known members of a family of aircraft that includes the SR-71 is the D-21 reconnaissance drone.\\u00a0 The drone was designed to be launched from the back of a modified A-12, the first version of the Blackbird.\\u00a0 A ramjet engine that requires very high speeds to operate powers the D-21 and the Blackbird was the only aircraft capable of the speed required.\\u00a0 Initial testing began in 1963, however the drone was not released from the carrier aircraft in flight until March 1966.\\u00a0 Three successful test flights were made, but on the fourth flight the drone crashed into the launch plane and one of the two crewmen was killed.\\u00a0 The drone was redesigned and fitted with a booster rocket to generate the speed needed for engine operation.\\u00a0 In this configuration, it could be launched from a pylon mounted on the wing of a B-52.\\u00a0 Testing of this version began in 1967 and eventually four unsuccessful operational missions were flown over China.\\u00a0 The program was canceled in 1971.<\\\/p>\"}}]},{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"vertical_align\":\"\",\"style\":\"\",\"text_color\":\"\",\"padding\":\"\"},\"children\":[{\"type\":\"table\",\"props\":{\"show_title\":false,\"show_meta\":true,\"show_content\":true,\"show_image\":true,\"show_link\":true,\"table_order\":\"3\",\"table_responsive\":\"responsive\",\"table_width_title\":\"shrink\",\"table_width_meta\":\"\",\"meta_style\":\"\",\"image_svg_color\":\"emphasis\",\"link_text\":\"Read 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#2387c3;\\\"><strong>Length<\\\/strong><\\\/span><\\\/p>\",\"meta\":\"42 ft 10 in.\"}},{\"type\":\"table_item\",\"props\":{\"content\":\"\n\n<p><span style=\\\"color: #2387c3;\\\"><strong>Height<\\\/strong><\\\/span><\\\/p>\",\"title\":\"Height\",\"meta\":\"7 ft\"}},{\"type\":\"table_item\",\"props\":{\"content\":\"\n\n<p><span style=\\\"color: #2387c3;\\\"><strong>Weight<\\\/strong><\\\/span><\\\/p>\",\"title\":\"Weight\",\"meta\":\"11,000 lbs (loaded)\"}},{\"type\":\"table_item\",\"props\":{\"content\":\"\n\n<p><span style=\\\"color: #2387c3;\\\"><strong>Maximum Speed<\\\/strong><\\\/span><\\\/p>\",\"title\":\"Max. Speed\",\"meta\":\"2,500 + MPH (Mach 4 +)\"}},{\"type\":\"table_item\",\"props\":{\"content\":\"\n\n<p><span style=\\\"color: #2387c3;\\\"><strong>Service Ceiling<\\\/strong><\\\/span><\\\/p>\",\"title\":\"Service Ceiling\",\"meta\":\"90,000 + ft\"}},{\"type\":\"table_item\",\"props\":{\"content\":\"\n\n<p><span style=\\\"color: #2387c3;\\\"><strong>Range<\\\/strong><\\\/span><\\\/p>\",\"title\":\"Range\",\"meta\":\"3,000 + miles\"}},{\"type\":\"table_item\",\"props\":{\"content\":\"\n\n<p><span style=\\\"color: #2387c3;\\\"><strong>Engine<\\\/strong><\\\/span><\\\/p>\",\"title\":\"Engines\",\"meta\":\"One Marquardt XRJ43-MA-20 ramjet with 1,500 pounds of thrust\"}},{\"type\":\"table_item\",\"props\":{\"content\":\"\n\n<p><span style=\\\"color: #2387c3;\\\"><strong>Crew<\\\/strong><\\\/span><\\\/p>\",\"title\":\"Crew\",\"meta\":\"None\"}}]}]}]},{\"type\":\"row\",\"props\":{\"layout\":\"1-1\",\"breakpoint\":\"m\",\"fixed_width\":\"large\",\"column_gap\":\"\",\"row_gap\":\"\",\"width\":\"\",\"width_expand\":\"\",\"height\":\"\",\"margin\":\"\"},\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"vertical_align\":\"\",\"style\":\"\",\"text_color\":\"\",\"padding\":\"\"},\"children\":[{\"type\":\"divider\",\"props\":{\"divider_element\":\"hr\",\"divider_style\":\"\",\"divider_align\":\"\",\"divider_align_breakpoint\":\"\",\"divider_align_fallback\":\"\",\"position\":\"\",\"position_z_index\":\"\",\"margin\":\"\",\"maxwidth\":\"\",\"maxwidth_breakpoint\":\"\",\"block_align\":\"\",\"block_align_breakpoint\":\"\",\"block_align_fallback\":\"\",\"animation\":\"\",\"visibility\":\"\"}}]}]},{\"type\":\"row\",\"props\":{\"layout\":\",\",\"breakpoint\":\"m\",\"fixed_width\":\"large\",\"column_gap\":\"\",\"row_gap\":\"\",\"width\":\"\",\"width_expand\":\"\",\"height\":\"\",\"margin\":\"\"},\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"vertical_align\":\"\",\"style\":\"\",\"text_color\":\"\",\"padding\":\"\"},\"children\":[{\"type\":\"text\",\"props\":{\"margin\":\"default\",\"column_breakpoint\":\"m\",\"text_style\":\"\",\"text_color\":\"\",\"text_size\":\"\",\"column\":\"\",\"position\":\"\",\"position_z_index\":\"\",\"maxwidth\":\"\",\"maxwidth_breakpoint\":\"\",\"block_align\":\"\",\"block_align_breakpoint\":\"\",\"block_align_fallback\":\"\",\"text_align\":\"\",\"text_align_breakpoint\":\"\",\"text_align_fallback\":\"\",\"animation\":\"\",\"visibility\":\"\",\"content\":\"\n\n<p><span style=\\\"color: #2387c3;\\\"><strong>Manufacturer<\\\/strong><\\\/span><br \\\/>Lockheed<\\\/p>\\n\n\n<p><span style=\\\"color: #2387c3;\\\"><strong>Markings<\\\/strong><\\\/span><br \\\/>4200<sup>th<\\\/sup> Support Squadron, Beale AFB, California, 1971<\\\/p>\"}}]},{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"media_overlay_gradient\":\"\",\"vertical_align\":\"\",\"style\":\"\",\"text_color\":\"\",\"padding\":\"\"},\"children\":[{\"type\":\"text\",\"props\":{\"margin\":\"default\",\"column_breakpoint\":\"m\",\"text_style\":\"\",\"text_color\":\"\",\"text_size\":\"\",\"column\":\"\",\"position\":\"\",\"position_z_index\":\"\",\"maxwidth\":\"\",\"maxwidth_breakpoint\":\"\",\"block_align\":\"\",\"block_align_breakpoint\":\"\",\"block_align_fallback\":\"\",\"text_align\":\"\",\"text_align_breakpoint\":\"\",\"text_align_fallback\":\"\",\"animation\":\"\",\"visibility\":\"\",\"content\":\"\n\n<p><span style=\\\"color: #2387c3;\\\"><strong>Serial Number<\\\/strong><\\\/span><br \\\/>533<\\\/p>\\n\n\n<p><span style=\\\"color: #2387c3;\\\"><strong>Designation<\\\/strong><\\\/span><br \\\/>D-21B<\\\/p>\"}}]}]}]}],\"version\":\"1.22.2\",\"props\":[]} --><\/p>\n","protected":false},"featured_media":564,"template":"","categories":[60],"tags":[],"class_list":["post-1030","museum_aircraft","type-museum_aircraft","status-publish","has-post-thumbnail","hentry","category-lockheed","Designation-d-21b"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Lockheed D-21B - Pima Air &amp; 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