{"id":831,"date":"2019-11-27T20:26:43","date_gmt":"2019-11-28T03:26:43","guid":{"rendered":"http:\/\/pimaair.wpengine.com\/?post_type=museum_aircraft&#038;p=831"},"modified":"2019-12-30T10:54:48","modified_gmt":"2019-12-30T17:54:48","slug":"boeing-kb-50j","status":"publish","type":"museum_aircraft","link":"https:\/\/pimaair.org\/museum-aircraft\/boeing-kb-50j\/","title":{"rendered":"Boeing KB-50J"},"content":{"rendered":"<h1>Boeing KB-50J Superfortress<\/h1>\n<p><a href=\"wp-content\/uploads\/2019\/11\/Boeing-KB-50J.jpg\"><img decoding=\"async\" src=\"wp-content\/uploads\/2019\/11\/Boeing-KB-50J.jpg\" alt=\"A picture of the Boeing KB-50J Superfortress\"><\/a><\/p>\n<div>\n<p>The Boeing B-50 began as an upgrade to the highly successful B-29.\u00a0 However, the large number of changes made, new engines, modified wings, and a larger tail being just a few, resulted in a new designation for the aircraft.\u00a0 The first aircraft entered service in 1947 and eventually 370 were built.\u00a0 As the B-50s began to be replaced by other types of bombers they were modified for use as aerial refueling tankers by the Tactical Air Command.\u00a0 The first modifications involved removing all armament and installing extra fuel tanks in the fuselage and under the wings.\u00a0 Eventually, greater speed was needed to keep up with the faster fighters in use and the external tanks were replaced by two J-47 turbojet engines.\u00a0 In this form they continued to serve well into the 1960s.<\/p>\n<\/div>\n<table>\n<tbody>\n<tr>\n<td>Wingspan<\/td>\n<td>141 ft 3 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>105 ft 1 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>33 ft 7 in.<\/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>179,500 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>444 MPH<\/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>39,700 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>2,300 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>Four Pratt &#038; Whitney R-4360-35 radial engines with 3,500 horsepower each, and two General Electric J47-GE-23 turbojets with 5,200 pounds of thrust each<\/td>\n<td>\n<p><span style=\"color: #2387c3;\"><strong>Engines<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>Crew<\/td>\n<td>5<\/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 \/>Boeing<\/p>\n<p><span style=\"color: #2387c3;\"><strong>Markings<\/strong><\/span><br \/>4505<sup>th<\/sup> Air Refueling Wing, Turner AFB, Georgia, 1959<\/p>\n<\/div>\n<div>\n<p><span style=\"color: #2387c3;\"><strong>Serial Number<\/strong><\/span><br \/>49-0372<\/p>\n<p><span style=\"color: #2387c3;\"><strong>Designation<\/strong><\/span><br \/>KB-50J<\/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\":\"Boeing 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Superfortress\"}}]}]},{\"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\\\/Boeing-KB-50J.jpg\",\"link\":\"wp-content\\\/uploads\\\/2019\\\/11\\\/Boeing-KB-50J.jpg\",\"image_alt\":\"A picture of the Boeing KB-50J Superfortress\"}},{\"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>The Boeing B-50 began as an upgrade to the highly successful B-29.\\u00a0 However, the large number of changes made, new engines, modified wings, and a larger tail being just a few, resulted in a new designation for the aircraft.\\u00a0 The first aircraft entered service in 1947 and eventually 370 were built.\\u00a0 As the B-50s began to be replaced by other types of bombers they were modified for use as aerial refueling tankers by the Tactical Air Command.\\u00a0 The first modifications involved removing all armament and installing extra fuel tanks in the fuselage and under the wings.\\u00a0 Eventually, greater speed was needed to keep up with the faster fighters in use and the external tanks were replaced by two J-47 turbojet engines.\\u00a0 In this form they continued to serve well into the 1960s.<\\\/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\":\"105 ft 1 in.\"}},{\"type\":\"table_item\",\"props\":{\"content\":\"\n\n<p><span style=\\\"color: #2387c3;\\\"><strong>Height<\\\/strong><\\\/span><\\\/p>\",\"title\":\"Height\",\"meta\":\"33 ft 7 in.\"}},{\"type\":\"table_item\",\"props\":{\"content\":\"\n\n<p><span style=\\\"color: #2387c3;\\\"><strong>Weight<\\\/strong><\\\/span><\\\/p>\",\"title\":\"Weight\",\"meta\":\"179,500 lbs (loaded)\"}},{\"type\":\"table_item\",\"props\":{\"content\":\"\n\n<p><span style=\\\"color: #2387c3;\\\"><strong>Maximum Speed<\\\/strong><\\\/span><\\\/p>\",\"title\":\"Max. Speed\",\"meta\":\"444 MPH\"}},{\"type\":\"table_item\",\"props\":{\"content\":\"\n\n<p><span style=\\\"color: #2387c3;\\\"><strong>Service Ceiling<\\\/strong><\\\/span><\\\/p>\",\"title\":\"Service Ceiling\",\"meta\":\"39,700 ft\"}},{\"type\":\"table_item\",\"props\":{\"content\":\"\n\n<p><span style=\\\"color: #2387c3;\\\"><strong>Range<\\\/strong><\\\/span><\\\/p>\",\"title\":\"Range\",\"meta\":\"2,300 miles\"}},{\"type\":\"table_item\",\"props\":{\"content\":\"\n\n<p><span style=\\\"color: #2387c3;\\\"><strong>Engines<\\\/strong><\\\/span><\\\/p>\",\"title\":\"Engines\",\"meta\":\"Four Pratt & Whitney R-4360-35 radial engines with 3,500 horsepower each, and two General Electric J47-GE-23 turbojets with 5,200 pounds of thrust each\"}},{\"type\":\"table_item\",\"props\":{\"content\":\"\n\n<p><span style=\\\"color: #2387c3;\\\"><strong>Crew<\\\/strong><\\\/span><\\\/p>\",\"title\":\"Crew\",\"meta\":\"5\"}}]}]}]},{\"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 \\\/>Boeing<\\\/p>\\n\n\n<p><span style=\\\"color: #2387c3;\\\"><strong>Markings<\\\/strong><\\\/span><br \\\/>4505<sup>th<\\\/sup> Air Refueling Wing, Turner AFB, Georgia, 1959<\\\/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 \\\/>49-0372<\\\/p>\\n\n\n<p><span style=\\\"color: #2387c3;\\\"><strong>Designation<\\\/strong><\\\/span><br \\\/>KB-50J<\\\/p>\"}}]}]}]}],\"version\":\"1.22.2\",\"props\":[]} --><\/p>\n","protected":false},"featured_media":430,"template":"","categories":[12],"tags":[],"class_list":["post-831","museum_aircraft","type-museum_aircraft","status-publish","has-post-thumbnail","hentry","category-boeing","Designation-kb-50j","name-superfortress"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Boeing KB-50J - Pima Air &amp; 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