Converted from a classic Grumman Goose, the experimental Kaman K-16B was conceived as a vertical-takeoff-and-landing (VTOL) test aircraft. The basic fuselage and tail of the amphibian was matted to a new tilting wing (just 50º of tilt) and a pair of GE YT58 turboprop engines. This contraction was created by the "mainly helicopter" company Kaman Aircraft for the US Navy in 1959 as a fast approach to explore the tiltwing VTOL concept.
Spellbinding photo of the K-16B at the NASA Ames huge wind tunnel. It was the nearest it came to a "flight". The K-16B underwent extensive wind tunnel there. Some tethered tests were undertaken, but the aircraft remained unflown by the time the project was cancelled in 1962.