https://navaltoday.com/2019/07/29/us-navy-tests-unique-vertical-take-off-uav/US Navy tests unique vertical take-off UAV
July 29, 2019
The MartinUAV-built V-BAT is a long endurance drone for shipboard and confined area operation. A ducted fan design maximizes operational safety by eliminating exposed rotors.
The aircraft is launched and recovered in a 20 x 20 ft clearing and can fly for up to 8+ hours with a 8+ lb payload.
The UAV is also in the running to replace the US Army’s Shadow tactical UAS.

A VBAT vertical take-off and landing (VTOL) unmanned aerial system (UAS) flies above the flight deck of USNS Spearhead (T-EPF 1). Photo: US Navy