Yes, helicopters can fly in Instrument Meteorological Conditions (IMC), but only if both the aircraft and the pilot are specifically certified for IFR (Instrument Flight Rules) operations. Flying IMC means the pilot cannot see the horizon and must rely entirely on flight instruments for navigation and stability. To be IFR-certified, a helicopter must generally have a redundant electrical system, advanced avionics, and often a two-axis or three-axis autopilot (or stability augmentation system) to assist with the high workload of rotary-wing flight. Many light, single-engine helicopters are restricted to VFR (Visual Flight Rules) because they lack the necessary stability to be flown safely without outside visual references for long periods. Furthermore, even IFR-capable helicopters often have a "Vmini" (minimum instrument speed) of around 50 knots, meaning they cannot hover in the clouds without specialized auto-hover technology. For safety, many commercial operators prefer to fly VFR at lower altitudes to maintain visual contact with the ground whenever possible.