The 50-hours inspection of the ignition and electrical system of USAAF B-24 Liberator heavy bomber aircraft at an airfield in the United States. Men exercise on the field. An animated diagram of human skeleton and United States Army Air Forces B-24 Liberator heavy bomber aircraft. The B-24 heavy bomber aircraft takes off. The aircraft in flight over grasslands. The B-24 parked at the airfield. The crew members start the 50-hours inspection of ignition and electrical system of the aircraft. An electrical specialist tightens the elbow terminals and nuts of the hammering engines. The specialist checks the chamber and slides wires and makes sure they are not worn. He checks the cable for security of mounting. After inspecting all the wires and harness, the specialist checks other attachments. He examines the switch lead and removes cover from booster coil. The signals for operation test on cover plate switch board flow smoothly, so the specialist gives an 'OK' signal. During the electrical inspection: the specialist notes the operation of the battery disconnect relay. A man in the cockpit operates the battery switches. The specialist signals in the cockpit and replaces canvas covering. He checks battery insulation for proper security of connections. The specialist makes the hydrometer test with electrolytes and removes the sump and cleans it with soda water bath and neutralize acids. He checks the proper connection of accessible electrical leads and also checks the landing lights and examines the inter cooler shutters in the cockpit. The specilaist checks the generator for security of mounting and makes sure that the brushes are in good condition. He tests the oiling and cooling blast connection.
The 50-hours inspection of the ignition and electrical system of the USAAF B-24 Liberator heavy bomber aircraft at an airfield in the United States. The electrical specialist checks the regulators in the aircraft nose compartment. The specilaist checks starters and removes window strap for proper inspection. The specialist checks brush condition and inspects the heaters. He takes out screws and pulls out back casting and inspects the back plate for deformation of metals. The electrical specialist uses air hose to clean the oven. He checks and cleans the igniter using a brush. The specialist makes a similar inspection with the side heaters and cleans solenoid belt. He runs the motor and checks its functioning. He inspects the battery plug connection on the outside of the aircraft. He checks the A/C inverter. O perational check of alarm bell is done. He opens the fuse box to repair it, and with the help of a diagram he replaces the bad fuse with the new fuse. The aircraft in flight after completion of inspection.
King of Italy Victor Emmanuel III visits Tripoli, Libya. A large crowd of civilians await the arrival of the King of Italy Victor Emmanuel III. The King and Marshal of the Air Force of Italy Italo Balbo disembarks boat. Officers and dignitaries greet and receive the King. King Victor and Marshal Balbo inspect the lined up troops. The King waves at the gathering from the balcony of a building.
New techniques in aerial torpedo attack, United States. An aircraft in flight over a sea. The aircraft releases torpedo in water. Torpedo moves. Men haul trolley loaded with the torpedo. The shroud ring or ring tail is in conjunction with the drag ring on nose of the torpedo. Using ring tail and drag ring with wooden stabilizer results in successful test drops. A man secures the stabilizer to ring tail with wooden dowels. The man covers the torpedo with a drag ring which helps to stabilize the torpedo during air travel, and seals the ring. The man adjusts the water trip delay valve which prevents the torpedo from burning up during long travels. Depth setting is done. (World War II period).
Film opens showing large cloud of white smoke rising from a rocket propelled rail car. That is followed by a series of still pictures showing various designs of German rocket pioneer, Reinhold Tilling. Next, the airplane used to test fire Tilling's rockets at altitude, in 1933, is seen, with rockets slung beneath its wings. Pilot is seen climbing into the airplane cockpit. This is followed by series of photographs taken from the ground as rockets are fired from the plane. The airplane is seen small, at altitude, in some. Scene shifts to fire raging at one of Reinhold Tilling workshops, at Osnabruck, Germany, where he and two assistants were fatally injured when gunpowder charges they were compressing for rocket engines, exploded on October 10, 1933. Slate (in German) reads German rocket pioneer engineer Reinhard Tilling shot one of his rockets, on Tempelhof Feld near Berlin, 800 meters into the air. The rocket landed 500 meters away from the launch site, on November 13, 1932. Change of scene shows men standing in a boat on Lake Dümmersee as they retrieve a Tilling postal rocket from the water. Its wings are extended in the glide position. Views of other boats on the lake and of men holding several folded postal rockets.
Still pictures of early German rockets on tripod launchers. A number of small rockets laying on the ground partially covered with a tarpaulin. Several men on a hillside with a rocket launcher pointed horizontally. Fleeting glimpse of the work shop of German rocket pioneer, Reinhold Tilling, followed by views of several men holding a Tilling postal rocket nose down with its wings folded. They are standing in tall marsh grass near lake Dümmersee. Next, Reinhold Tilling is seen with his assistant, Angela Buddenboehmer, and his mechanic Friedrich Kuhr, making adjustments to a rocket, with its wings open. Men carry the rocket with its wings folded and place it on a tall pole. Next, the rocket launches straight into the air. Men maneuver in a sailboat and other boats in the Dümmersee, preparing to retrieve a Tilling rocket. Closeup of the men in the sailboat. Several men in a long boat near marsh grass where a Tilling rocket has landed.
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