Sierra Nevada Corp., Sparks, Nev., was awarded an indefinite-delivery/indefinite-quantity, firm-fixed-price contract with a maximum value of $8,000,000 for services in support of the helicopter autonomous landing system.  Work location and type of appropriation will be determined with each order.  The bid was solicited through the Internet, with one bid received.  The Army Contracting Command, Fort Eustis, Va., is the contracting activity (W911W6-13-D-0007).