This is a scan of the manual for my DynaJet Red Head pulse jet engine. In 5th grade or so, the fire department spoke to the whole student body in the auditorium, about 1966. and for some reason they fired off a Dynajet on stage. 20 or 30 years later I found one brand new in the box for $50. Other then a couple of dents from the last big earthquake, it's still like new in the original box with a good manual and a spare valve.
Click on the pictures to see high resolution versions.