Re: History of RC Sailboats
A propos Tesla's R/C device, it was intended, like nearly all early R/C experiments, as a weapon. A controlled locomotive torpedo. Tesla made ridiculous claims for it, even suggesting that the British fleet could be sunk as Spithead without the attackers having to go beyond Sandy Hook. This overlooks problems of range, endurance, and target acquisition.
REalistic coverage of the early days of R/C (not necessarily in models) can be found in B F Miessner "Radiodynamics" New York 1916. Early radio control of powered models is in "Model Engineer" before 1914 and in books from the 1920s and 30s by Raymond Phillips.
History is not bunk. The best way to find the way forward is to understand how you got to where you are.