The Desert Hawk project was started in late 2003 to fulfil a requirement of the Pakistan Army, with the first prototype flying in late 2004. Designed to be capable of unpowered and powered flight using either an internal combustion engine or electric motor, the Desert Hawk looks much like the L-3 Communications-BAI Aerosystems Javelin UAV. Endurance of the Desert Hawk is approximately 2 hours. The standard system comprises a portable ground station and two UAVs. The line-of-sight data-link communication system is designed to get around terrain-masking problems by using one UAV as a communications relay station while the other UAV performs the mission. This capability was demonstrated in 2005 during the flight trials programme. Latest version is the Desert Hawk Mk II.