Greg Hanegraaf’s WWII fighter plane scrapbook (1941-43)

A scrapbook that Dad assembled from 1941-43, when he was a freshman, sophomore and junior at St John’s high school in Little Chute, WI. This includes sketches Dad made.

I found the comment interesting (see enlarged in next pic).
Explanation re: saving cooking fat: the primary purpose of the grease (fat from cooking), at least as advertised, was to make glycerine (glycerol), which is produced when fats are heated with strong bases like lye (the other product is soap, which I presume they also found a use for). The glycerine was used to make nitroglycerine, which was used in explosives (most notably dynamite) and gunpowder (old-fashioned black powder, made from charcoal, sulfur, and potassium nitrate, was already a thing of the past; most smokeless powders of the time used high explosive like nitroglycerine cut with other ingredients to slow the detonation and make a propellant). I’ve seen ads from the period that explicitly told housewives their old cooking grease would be made into bombs and gunpowder.
This ad from a magazine must have represented the feelings of many young men at this time.
Found the comment about walking in the wing to make repairs to the engines while in flight interesting.