Which privileges are attached to a Group 4 INRAT?

The privileges attached to a Group 4 Instrument Rating encompass the operation of all multi-engine planes, single-engine airplanes, and helicopters. This classification provides a broad scope of operational capabilities, allowing pilots to fly a variety of aircraft types under instrument flight rules (IFR).

Having this rating means that not only can the pilot operate single-engine aircraft, which might include general aviation planes, but they also gain the authority to fly more complex multi-engine airplanes which are often used for commercial operations. Additionally, the inclusion of helicopters in this rating expands the pilot's versatility in different flying environments.

Other options presented do not capture the full range of privileges as specified for a Group 4 INRAT. For instance, focusing solely on single-engine aircraft, though accurate in that context, would limit the operational capacity significantly compared to the broader privileges. The option suggesting center-thrust adds unnecessary complexity without encompassing the total scope as it doesn't account for helicopters. Finally, stating all aeroplanes lacks the necessary detail to separate the various categories of aircraft included in Group 4 privileges, as regularly, different types have varying operational requirements and capabilities.