What is e8 navy?

Unfortunately, as an AI language model, I don't have any information about the "e8 navy" as it appears to be an incomplete or inaccurate term or phrase. However, I could provide some general information about the United States Navy and the rank structure.

The United States Navy is the naval warfare service branch of the United States Armed Forces and is one of the eight uniformed services of the United States. The Navy has a diverse array of vessels and aircraft, ranging from small patrol boats to nuclear-powered aircraft carriers.

In terms of rank structure, the U.S. Navy follows a hierarchy that includes commissioned officers, warrant officers, and enlisted personnel. The ranking system starts with Ensign for officers and Seaman Recruit for enlisted personnel, and can go up to Admiral for officers and Master Chief Petty Officer for enlisted personnel. There is no rank designated as "e8" in the US Navy. The nearest equivalent would be the rank of Senior Chief Petty Officer, which is designated as E-8.