How does Class E airspace differ from Class C airspace regarding clearance for VFR traffic?

Class E airspace is designed to allow for the free movement of Visual Flight Rules (VFR) traffic with relatively fewer restrictions compared to other classes of airspace. Specifically, VFR aircraft operating in Class E airspace are not required to receive clearance from Air Traffic Control (ATC) before entering this airspace. This characteristic supports the principle of maintaining accessibility for general aviation, where pilots can operate under VFR without needing to communicate with ATC, as long as they comply with VFR weather minimums and other applicable regulations.

In contrast, Class C airspace requires that VFR traffic obtain clearance from ATC prior to entering, highlighting a more controlled airspace environment where ATC services are present and manage traffic. This difference allows for a greater level of flexibility for VFR pilots in Class E airspace, promoting a more autonomous operation, which is often preferred by general aviation users.

Therefore, the implication of Class E not requiring ATC clearance for VFR traffic underlines a fundamental aspect of its structure, aimed at facilitating easier navigation and operations for pilots flying under visual conditions.