1969 Hahn, 1,250 GPM pump/500 gallon tank. 6-71 Detroit diesel engine/Allison transmission. Built by Pat D. of Legowasco. Design and inspiration goes to Zak Overmeyer of West Brickmont. Thanks,Zak! Note: The rig is now owned by the chief of dept. Me! Enjoy it, because I do! The second picture is a picture of the Hahn before it was recently rehabbed.