Well, I guess most helos with retractable gear are not the type to run around at slow speeds. But it wasn't uncommon in my LE experience to fly at less than 50 knots in a Bell 206/406. Dealing with a nuisance gear warning would be a hassle.On the aircraft I'm familiar with it was all airspeed based. If gear handle not down and airspeed < 50 = light plus aural warning...