Tellefsen Assumes Command of the 717th Test Squadron

Lt. Col. Jonathan Tellefsen addresses attendees on hand to see him assume the role of 717th Test Squadron commander during a June 9, 2026, Change of Leadership ceremony at Arnold Air Force Base, Tenn., headquarters of Arnold Engineering Development Complex. Prior to assuming the role of 717 TS Commander, Tellefsen served as Director of Operations for the 715th Test Squadron. (U.S. Air Force photo by Keith Thornburgh)

PHOTO BY: Keith Thornburgh
VIRIN: 260609-F-FU327-1023.JPG
FULL SIZE: 10.96 MB
Additional Details

CAMERA

NIKON Z 8

LENS

NIKKOR Z 70-200mm f/2.8 VR S

APERTURE

35/10

SHUTTERSPEED

1/200

ISO

1250

IMAGE IS PUBLIC DOMAIN

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