Smithsonian HD Network Witness amazing buildings, bridges, lifts, and other structures that pushed structural concrete engineering to the edge. 2026-08-13 After a Chinese airplane lands at a top-secret US Air Force base, the search is on for the cause of a deadly rollercoaster ride in the sky. 2026-08-13 Air France Flight 296 fails to regain altitude after performing a fly-by during an air show at Mulhouse-Habsheim Airport. 2026-08-13 A bomb explodes on Air India Flight 182 en route from Canada to India causing it to disintegrate over the coast of Ireland. 2026-08-13 If pilots aren't prepared when the runway is in sight, a landing can quickly become a tragedy. 2026-08-13 In 1999, EgyptAir Flight 990 crashed into the Atlantic Ocean while flying from New York City to Cairo, killing all 217 people on board; the cause of the crash is disputed. 2026-08-13 Northwest Airlines Flight 255 crashes shortly after take-off in Detroit in 1987; a fatal preflight error caused the second-deadliest plane crash in the U.S. history. 2026-08-13 Three crews experience the same devastating event; with radically different outcomes when an engine falls off their commercial airplane. 2026-08-13 When a USAF stealth bomber crashes after takeoff, investigators search for a reason. 2026-08-13 When a turboprop stalls and crashes into a North Carolina forest, investigators resort to a risky test flight-and uncover an industry-wide safety problem. 2026-08-13 A look at experimental ships and revolutionary designers that have changed the tide of war through the centuries. 2026-08-13 A chronological look at the events of the 1944 D-Day landings, and the vessels that made the invasion possible, with an insight into personal stories and engineering wonders. 2026-08-13 A look at how technological advances over the centuries have transformed maritime warfare. 2026-08-13 Vessels that operate in secret, unseen by their enemies, from secret missions that helped win World War II to modern stealth ships using strange shapes and technology to avoid spying ears and eyes. 2026-08-13 A look at how maritime task forces and the Coast Guard are keeping commercial vessels and US shores safe from pirates and drug smugglers. 2026-08-13 A comprehensive look at the naval battle of Guadalcanal in November 1942 and the heroic efforts of U.S. sailors who held off powerful Imperial Navy. 2026-08-13 The evolution of amphibious assault vehicles, including the restoration of Britain's last surviving LCT 7074 landing craft, designed to carry six Churchill tanks. 2026-08-13 A look at how the role of battleships changed over the course of the First and Second World Wars. 2026-08-13 From tests in the River Thames, to the German's deadly U-boat attacks in World War II, this episode explores the silent threat of submarines. 2026-08-13 Stories of espionage at sea, including deadly U-boat cat-and-mouse games during WWI, the sinking of the Lusitania, a gun-smuggling private yacht that made history, and liners turned troopships. 2026-08-13 The most-produced bomber in US history, used during World War II by every branch of the American military, as well as by the Royal Air Force. 2026-08-13 A look at the amphibious aircraft and the many roles it served during WWII, from patrol bomber to search-and-rescue aircraft. 2026-08-13 The story of the world's first nuclear bomber, the B-29, and its explosive impact on aerial warfare. 2026-08-13 An inside look at Japan's A6M Zero, the most feared fighter at the start of World War II. 2026-08-13 The inside story of the massive military transport aircraft, the C-17. 2026-08-14 The history and evolution of America's most legendary spy plane. 2026-08-14 The Boeing B-17 Flying Fortress is one of the most lethal bombers of the U.S. Air Force in WWII's European and Pacific campaigns; among other things, the plane delivered food to the German-occupied Netherlands. 2026-08-14 A look at the rise and fall of the infamous Nazi dive bomber Ju-87 Stuka, an aircraft of World War II. 2026-08-14 The inside story of the F-4 Phantom, the U.S. military's go-to fighter for more than four decades. 2026-08-14 The world's most versatile and powerful helicopters, including the Huey that served as a rescue helicopter in Vietnam, and the Apache attack helicopter. 2026-08-14 An inside look at the U.S. Air Force's largest aircraft, the C-5 Galaxy; its most dramatic combat and peacetime missions over the last 50 years. 2026-08-14 The Vietnam-era OV-10 Bronco is pulled out of retirement to join the fight against ISIS. 2026-08-14 The naval fighter designed to counter the Japanese Zero turns the tide of the war in the Pacific. 2026-08-14 The true story of the F-14 Tomcat, the military aircraft made famous in "Top Gun"; how it served as the US Navy's top carrier fighter for a generation. 2026-08-14 Oregon's Cascade Mountains; Columbia River waterway. 2026-08-14 A day-long aerial tour of the New England city of Boston in Massachusetts; where Americans first rebelled against Britain by dumping chests of tea into the harbor and where rock band Aerosmith first made it big. 2026-08-14 A look at America's landmarks, including a view of bears catching clams in Alaska's rivers; a high-flying tour reveals Alaska's call of the wild spirit that has lured adventurers and dreamers north for centuries. 2026-08-14 An aerial tour over America's coastlines explores the visual splendor and rich history of the nation's varied borders. 2026-08-14 An amazing aerial tour over Utah reveals a state full of otherworldly landscapes and landmarks, including a history steeped in Mormonism, pioneering tragedy, and Olympic glory. 2026-08-14 Taking flight for a bird's eye tour of America's rivers, lakes and canals. 2026-08-14 Beauty of the Empire State; Central Park; tallest skyscrapers; mighty rivers; 17th century explorer Henry Hudson. 2026-08-14 A plane with members of the Manchester United football team crashes while heading home from Yugoslavia, killing 23 aboard. 2026-08-14 On 28 December 1978, the crew of United Airlines Flight 173 are preoccupied with a landing gear problem as the aircraft circles in a holding pattern in the vicinity of Portland, Oregon; it runs out of fuel and crashes in a sparsely populated area. 2026-08-14 A team of experts investigates in detail the carnage of a cargo plane; an anonymous tip helps explain why a cargo plane crashed just moments after taking off from Miami. 2026-08-14 Relying on instinct rather than the rule book, three flights end in tragedy when crews improvise on their final approach. 2026-08-14 A passenger ferry sinks after crashing into rocks off the coast of a Greek island, killing 82; it leads to a shocking investigation. 2026-08-14 A commuter turboprop crashes onto hilly terrain in New Zealand; the search for answers inevitably leads to the cockpit. 2026-08-14 When a modified WWII fighter plane crashes into the crowd at a Nevada air show, investigators struggle to find the cause. 2026-08-14 After a Chinese airplane lands at a top-secret US Air Force base, the search is on for the cause of a deadly rollercoaster ride in the sky. 2026-08-15