N-star, the Sea-king may be `old`but many Navies/Air forces have used it for 50+ years .The radar has/had a 15/20 *degree blind-arc ahead,but using the appropriate techniques and good Crew co-operation that did not impose any limitation on crews ability to do IMC,or night IMC /NVG letdowns,even with ,in it`s earlier Mks a simplex autopilot/AFCS with full transition-down,hover/transition-up modes.