What altitude must you be aware of if you're flying through Class E airspace?

In Class E airspace, one important altitude to be aware of is 700 feet AGL (Above Ground Level). This altitude is significant because it is the lower limit that defines the airspace in which certain regulations and visibility criteria apply. Class E airspace can begin at the surface or at 700 feet AGL, and understanding this boundary helps pilots comply with specific operating requirements, including visibility and cloud clearance rules.

When you fly below 700 feet AGL in Class E airspace, you are generally subject to different regulations compared to flights above that altitude. In many areas, Class E airspace provides a transition zone where visual flight rules (VFR) can be safely conducted, provided pilots maintain proper visibility and separation from clouds. Hence, being aware of this altitude is vital for flight planning and maintaining safety during operations in Class E airspace.