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M4-training stock footage and images

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A man looks through an instrument from an airship in flight over a sea in the United States.

A U.S. Navy training film titled 'The Airship Fundamentals, Principles and Operations' on the working of airships. View of a sea in the United States. Anti submarine search is a problem. An airship can search enemy submarines in the ocean. A submarine underway. An airship in flight overhead. 'US Navy' written on the airship. It consists of anti submarine devices. Interior of the airship. A man looks through an instrument. A crew inside the airship.

Date: 1950
Duration: 1 min 40 sec
Sound: Yes
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675077413
Explanation of aerostatics and fundamental principles and functions of parts of an airship is given in the United States.

From a U.S. Navy training film in the United States on the working of airships. Explanation of aerostatics and fundamental principles of an airship is given. They are explained with the help of a balloon. Men aboard the balloon. The balloon ascends. The upward and the downward movement of the balloon is explained. An airship is like a free balloon. Functions of rudder, elevators and other parts of an airship are explained. Helium is used to inflate the envelope of the airship. Men work nearby.

Date: 1950
Duration: 2 min 27 sec
Sound: Yes
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675077414
The process of filling of the envelope of an airship with helium is explained in the United States.

From a U.S. Navy training film in the United States on working of airships. A diagram of an airship. The envelope of the airship consists of helium and air. The pressure of outside air becomes less when helium is filled in the envelope. As helium expands, air is released through air valves. In the same way, when the pressure of outside air increases, then helium is released. If proper pressure is not maintained, the airship can loose its shape. Animation shows the working and functions of the airship. The ascent of an airship. The process of the escape of gas is also explained.

Date: 1950
Duration: 2 min 9 sec
Sound: Yes
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675077415
The design of a ZP2K airships is explained in the United States.

From a U.S. Navy training film in the United States on the working of airships. Specifications and designs of airships are explained. Fleet type airships are called ZP2K airships. Animation shows the design of an airship. Helium in the airship can lift 15 tons. A man aboard an aircraft carrier. Parts of an airship are explained.

Date: 1950
Duration: 1 min 52 sec
Sound: Yes
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675077416
Preflight inspection and take off of an airship in the United States.

From a U.S. Navy training film in the United States on the working of airships. Operations of airships. A crew goes aboard and members take their stations. They check parts of the airship. A radioman checks electronic gear. A navigator prepares for a mission. An elevator man also checks his controls. A command pilot sits between a rudder man and the elevator man. Auto pilot is installed to take care of normal cruising conditions. The ship is undocked and brought into position for a take off. Men watch the airship. 'US Navy' written on the ship. Diagram depicts the functions of different parts of airship. The airship takes off.

Date: 1950
Duration: 3 min 27 sec
Sound: Yes
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675077417
5 inch 38 caliber artillery being fired and calculations being made at U.S. Naval proving grounds in Dahlgren, Virginia.

A training film about the activities being carried out at United States naval proving grounds in Dahlgren, Virginia. Photographs of ancient ships at sea. An aircraft lands aboard an aircraft carrier. View of the U.S. naval proving grounds in Dahlgren, Virginia. An artillery at the ground. Velocity towers with coils used to determine velocity of a projectile fired. A number of booklets with a sign on them that reads 'AA range table'. Main battery building with the Firing officer at the bridge as he prepares for firing a 5 inch 38 caliber artillery. Men talk over phones as they check their communication instruments. A range boat stands by to ensure clearance of the area before artillery fire. Firing officer checks the firing circuit. Men prepare to record the velocity of the shell through photographs. Coils being raised to correspond with the angle of gun barrel. At the projectile house projectiles being numbered, weighed and measured. A balloon with a radio fixed to it being released to get weather information. Men at the gun mount as they magnetize the shells. Firing officer makes safety checks and 5 inch 38 caliber artillery being fired. Technicians record the velocity of the shell photographically. Photographic strip being developed. Technicians undertake calculation of data range table with the help of a map. Men unroll a map and work on it.

Date: 1951
Duration: 6 min 31 sec
Sound: Yes
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675077429