I ndia is developing an unmanned aerial vehicle similar to the American Predator drones with an investment of Rs 1,500 crore and planning unmanned combat vehicles, a key official involved in the project said on Monday.

UAV Rustom-2 project is spread over 66 months, director of Bengaluru-based Aeronautical Development Establishment, a Defence Research and Development Organisation laboratory, P S Krishnan, told PTI.

Rustom-2 would have a wing-span of 21-odd metres and an endurance of 24-hours-plus, as against seven-odd metres an 12-15 hours of Rustom-1, which has already completed five flights. ADE is the nodal lab for these projects.