I am downsizing from my Dowty and Buehler restoration projects and have a whole file of literature on these boats, dating back to the early 60,s. I know there is an enthusiast out there who would like to have it . If interested. I will forward it to anyone willing to pay for the shipping.
It has original specs from Buehler jet Corp, performance charts etc.
It's a lot of stuff on the turbocraft boats.