Image of the Air Force wings with the museum name underneath

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National Security Act of 1947

On July 26, 1947, President Harry S. Truman used this pen to sign the National Security Act of 1947 while aboard the Douglas VC-54C Sacred Cow, the first dedicated presidential aircraft. This act officially established the United States Air Force as a separate and co-equal branch of the United States Armed Forces on Sept. 18, 1947.(U.S. Air Force photo by Ken LaRock)

PHOTO BY: Ken LaRock
VIRIN: 240916-F-IO108-003.JPG
FULL SIZE: 3.27 MB
Additional Details

CAMERA

NIKON Z 6_2

LENS

VR 105mm f/2.8G

APERTURE

800/100

SHUTTERSPEED

10/150

ISO

800

IMAGE IS PUBLIC DOMAIN

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This photograph is considered public domain and has been cleared for release. If you would like to republish please give the photographer appropriate credit. Further, any commercial or non-commercial use of this photograph or any other DoD image must be made in compliance with guidance found at https://www.dimoc.mil/resources/limitations, which pertains to intellectual property restrictions (e.g., copyright and trademark, including the use of official emblems, insignia, names and slogans), warnings regarding use of images of identifiable personnel, appearance of endorsement, and related matters.