Boeing B-47B JATO rocket-assisted take off, 1954.

Davis-Monthan AFB, Tucson. (USAF photo)

Black smoke from engines indicates water-methanol injection is in use. See en.wikipedia.org/wiki/Boeing_B-47_Stratojet#Variants

 

Source: commons.wikimedia.org/wiki/File:Boeing_B-47B_rocket-assis...

 

Photo cleaned up a bit (at my request) by a Wikipedia Photo Workshop editor.

 

 

Done