CH146, absolutely right; but from 1987 onwards the antenna was reinforced, and actually projected forward from just ahead of the nose gear door. This removed the problem of a trailing link, and although projecting 500m forward of the fuselage did pose some formation and in-flight refuelling problems for Crabair, it was generally considered to be a good design. It had auto retract coupled to the gearbrakes-on-retract system fitted to the nosegear, so as to avoid the embarrassment of landing with it extended. There was a famous case in Canada where the antenna actually speared a Greylag goose at FL 150, and jammed the retraction mechanism. Story in "I learned about flying from that" went on to describe the best way to pluck and spit roast a goose!