A light helicopter of Dutch design, the Kolibrie was powered by rotor tip-mounted Kromhout ramjets. About ten H-3s were built for agricultural use. This is the prototype H-3, first flown in May 1956. Its H-2 predecessor, PH-NFT, is suspended from the ceiling.
This photo was added on 29 July 2017, and has since been viewed 60 times.