The "Manned Aircraft Clarification Act" proposes to amend federal statutes, specifically Title 18 and Title 49 of the United States Code, to clarify the scope of certain criminal penalties. Its primary purpose is to limit the application of penalties related to the destruction of aircraft and aircraft piracy exclusively to manned aircraft. The bill achieves this by inserting the term "manned" before "aircraft" in various relevant provisions within these titles. This legislative action aims to distinguish between manned and unmanned aerial vehicles, ensuring that the specified criminal penalties apply only to incidents involving aircraft operated by humans.