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Victims talk about the incidents after the tornadoes in United States.

Scenes of a wrecked house after the tornadoes in United States. A woman shows utensils in a wrecked house. A board shows a notice. A woman asks question to a man and he answers. Victims talk about the incidents. People eat food. Red Cross vans. Clouds in sky. Destructed buildings. People discuss.

Date: 1978
Duration: 4 min 46 sec
Sound: Yes
Color: Color
Clip Type: Edited
Language: English
Clip: 65675034360
Project Thunderstorm undertaken in Ohio, for military observation and understanding of thunderstorm effects on aircraft

Officer sitting at desk reading newspaper during Project Thunderstorm in the Ohio. United States calendar on wall in an Officer's office. United States covered with a large mass of clouds in sky. Officer looking up at clouds. Officers seated in room listening to lecture about the Thunderstorm Project. Instructor gives lecture on various types of clouds which are drawn on blackboard. Officer giving lecture on P-61 which is drawn on blackboard. P-61's parked on runway. Close-up views of cockpit and control areas of P-61. Civilian mounting movie camera on top blister of P-61. Mechanic checking special recording instruments in rear of P-61. Animated drawing of P-61. G3 officers in classroom listen to instructor's lectures. Mechanics install radar installations and transmitters in nose of P-61. Radar device seen spinning inside nose of P-61. United States P-61 in flight. Civilian cataloging motion picture film using a motion picture projector on a desk. Civilian installing motion picture camera in nose of a Northrop F-15 Reporter. Aerial view of Northrop F-15 Reporter in flight. AT-6 parked on runway. Camera installations in rear canopy of AT-6 also for use in surveying storm cloud formations. Pilot approaches AT-6 and climbs into cockpit of AT-6. AT-6 warms up before take off. AT-6 in flight.

Date: 1947, September
Duration: 6 min 47 sec
Sound: Yes
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675034361
Use of artificial lightning equipment in Project Thunderstorm, and radar operations supporting project and its aircraft

Tug tows Northrop F-15 Reporter into hangar in Minneapolis, Minnesota to be instrumented for Project Thunderstorm. Various scenes of electrical equipment used in making man-made lightning, including a generator made up of hundreds of transformers, and a connected massive generator for producing high voltage. A large oscillograph is shown along with a smaller oscillograph designed for airborne use. A scientist is seen inside the giant generator. Artificial lightning tests are made on canopy of the F-15 occupied by a scientist, and the canopy remains intact following lightning strike. Lightning rods are attached to lightning-vulnerable nose, tail fin, and wing tip locations of the Project Thunderstorm aircraft. Pilot climbs into canopy of F-15. Airborne F-15 project aircraft seen in flight headed toward area of dark clouds. In Ohio at Clinton County Army Air Field, a project officer (AAF Captain) describes how search procedures of the pilot, weather observer, and radar observer are coordinated and key locations of radar and cooperating facilities at Jamestown and the Clinton County Army Airfield. Large radar antenna revolving on top of large tower, scanning for signs of thunderstorms. Radar antenna scanning vertically, near Quonset huts. Command center inside a quonset hut with project personnel at radar scopes and thunderstorm and aircraft positions plotted on large plexiglass screens. Technician adjust motion picture camera that photographs radar scopes every four seconds. Operator at vertical measuring instrument, showing reflected returns from targets, on July 18, 1947. View of operator at plan position indicator radar scope showing weather returns on June 6, 1947. Ground Control Approach (GCA) truck located near end of airfield to guide landings of Thunderstorm aircraft. Radio operators sitting at radar scopes inside the GCA unit. P-61 makes GCA approach and landing in good weather, to maintain skills needed when weather is bad. Briefing officer at blackboard cites radio channels to be used for various purposes. View of AAF aircrews in audience.

Date: 1947
Duration: 8 min 13 sec
Sound: Yes
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675034362
Civilian instructor gives civilian students lectures on weather research in Ohio.

A civilian records clouds in the sky in the Ohio. Civilian instructor gives civilian students lectures on weather research. Civilian weather observer releases balloon borne target and it rises high into sky.

Date: 1947, June
Duration: 2 min 13 sec
Sound: Yes
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675034363
Civilians operating weather recording instruments in a Quonset hut in Ohio.

Civilian climbs out of jeep and walks toward weather station in Ohio. Civilian checks recorders at weather station. Civilian releases balloon borne target and it rises high into the sky. Civilians operating weather recording instruments in a Quonset hut. Civilians release weather balloon containing weather recorders and it raises high into sky. Civilian marking weather recordings on charts. Civilians marking weather conditions on charts.

Date: 1947
Duration: 4 min 44 sec
Sound: Yes
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675034364
Weather recording machines during Project Thunderstorm in Ohio.

Views of various types of weather recording machines in Ohio. A man sees copy of weather map. Boards representing information about weather. A man drawing on a weather map. A machine indicates weather situation.

Date: 1947
Duration: 2 min 6 sec
Sound: Yes
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675034365