The DRS RQ-15 Neptune is a reconnaissance UAV developed in the United States in the early years of the 21st century.

The 11.2 kW (15 hp) pusher engine is mounted high to keep it dry during takeoffs and landings.

The Neptune can also be launched off a pneumatic catapult and land on a skid.

In 2007, one was unsuccessfully launched off the USS Nashville (LPD-13), crashing into the water less than two seconds after lift off.

[citation needed] Data from Unmanned Aircraft Systems Roadmap 2005–2030, Office of the Secretary of Defense (p.20)General characteristics Performance The most remarkable design element is the double vertical stabilizer with the piston engine housed inbetween.