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An electrical specialist checks wires,harness connections,battery during the inspection of B-24 aircraft in the United States.

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.

Date: 1943
Duration: 5 min 39 sec
Sound: Yes
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675072636
An electrical specialist checks regulators,igniter,alarm bell,motor during the B-24 aircraft inspection in the United States.

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.

Date: 1943
Duration: 3 min 28 sec
Sound: Yes
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675072637
Major Blackburn and recovery team fasten cables to framework of USAAC Keystone LB-7 aircraft fuselage in Bluefields,Nicaragua.

Recovery of USAAC Keystone LB-7 bomber aircraft in Bluefields, Nicaragua. Major William A Blackburn and the recovery team fasten cables to framework of United States Army Air Corps Keystone LB-7 bomber aircraft fuselage. The United States Air Force CH-3C Sikorsky helicopter parked on a field. A hook attached to the underside of the CH-3C helicopter. The helicopter lifts up and pulls framework of the aircraft

Date: 1969, July 17
Duration: 2 min 54 sec
Sound: No
Color: Color
Clip Type: Unedited
Language: None
Clip: 65675072638
Major Blackburn and recovery team inspect the remains of USAAC Keystone LB-7 bomber aircraft in Bluefields,Nicaragua.

Recovery of the USAAC Keystone LB-7 bomber aircraft in Bluefields, Nicaragua. A crew member checks the remains of the United States Army Air Corps Keystone LB-7 bomber aircraft. Other members of the crew stand near the helicopter. Major Blackburn in the cockpit of the United States Air Force CH-3C Sikorsky helicopter Air Force C-47 parked in background. The Major gets out of the helicopter with an aircraft part and walks towards the damaged aircraft. The Major and the recovery team inspect the LB-7 aircraft remains.

Date: 1969, July 17
Duration: 2 min 40 sec
Sound: No
Color: Color
Clip Type: Unedited
Language: None
Clip: 65675072639
Major Blackburn and recovery team removes USAAC LB-7 aircraft landing gear and other debris from swamp in Bluefields,Nicaragua.

Recovery of USAAC Keystone LB-7 bomber aircraft in Bluefields, Nicaragua. Major Blackburn and the recovery team removes the United States Army Air Corps Keystone LB-7 bomber aircraft landing gear and other debris from the swamp. Major Blackburn at the controls of the United States Air Force CH-3C Sikorsky helicopter.

Date: 1969, July 18
Duration: 2 min 53 sec
Sound: No
Color: Color
Clip Type: Unedited
Language: None
Clip: 65675072640
USAF CH-3C helicopter in flight with framework of USAAC Keystone LB-7 bomber aircraft in its sling in Bluefields,Nicaragua.

Recovery of Keystone LB-7 bomber aircraft in Bluefields, Nicaragua. A U.S. C-47 aircraft parked next to a muddy runway. United States Air Force (USAF) CH-3C Sikorsky helicopter in flight with United States Army Air Corps (USAAC) Keystone LB-7 bomber aircraft framework in sling. The helicopter lowers the framework to the ground. The helicopter in flight. A crew member directs the landing of the helicopter. An aircraft parked in the background.

Date: 1969, July 17
Duration: 2 min 11 sec
Sound: No
Color: Color
Clip Type: Unedited
Language: None
Clip: 65675072641