One practical application that came out of Alexander Graham Bell's research was a tetrahedral towing device used by the Navy for target practice. These were used for a number of years although they suffered from structural problems. See photograph below for an example pontoon and tetrahedral object. Although Frederick Walker Baldwin and Alexander Graham Bell's wife Mabel rode the hydrofoils, Alexander Graham Bell did not, according to t.
The museum explained Alexander Graham Bell was fascinated with water striders because of their ability to move across the water. Water striders, Jesus bugs, skimmers, water skaters and water skeeters all belong to the insect family Gerridae.
My only exciting tale about the hydrofoil, other than the engineer that used to scare me by walking by and grabbing my neck to give me a neck massage while I worked at the punch press was the day one of the diver's got trapped and they used the small hydrofoil to rescue him. It made factory life a lot more interesting.
The first hydrofoil was designed and built by Enrico Forlanini in1906 , according to the US Hydrofoil Association.