What class of airspace typically has less restrictions compared to Class B and Class C?

Class E airspace typically has fewer restrictions compared to Class B and Class C airspace. Class B airspace is designed to protect high-density traffic around busy airports and has stringent requirements for entry, including the need for specific pilot certifications and communication with air traffic control. Class C airspace, while not as restrictive as Class B, also requires communication with air traffic control and adherence to specific entry procedures.

In contrast, Class E airspace serves primarily as a transition or en route area and spans from the surface up to any designated upper limits. It is often used for IFR (Instrument Flight Rules) operations, but it does not impose the same level of communication requirements as Class B or C, especially in areas that are not close to major airports.

Class G airspace, which is uncontrolled airspace, has even fewer restrictions than Class E, allowing for free flight without the need for air traffic control clearances. However, in terms of the specific comparison to Class B and Class C, Class E stands out for having less stringent operational requirements for pilots while still providing a controlled environment for IFR traffic.