Sikorsky [UTX] Aerospace Services said the U.S. State Department has ordered 11 additional upgraded S-61TM utility helicopters for use in Iraq and Afghanistan.

Sikorsky Aerospace Services (SAS) is the aftermarket division of Sikorsky Aircraft Corp.

Earlier this year, the State Department entered into a five-year indefinite delivery, indefinite quantity (IDIQ) contract for up to 110 upgraded S-61 aircraft for passenger and cargo transport missions in support of its worldwide operations.

Under the IDIQ agreement, the first four aircraft purchased in February are currently in completion and are scheduled for deployment in Afghanistan this fall.

“Sikorsky’s upgraded S-61 helicopter provides a capable solution for any customer looking to procure a utility aircraft with a proven record of endurance and reliability. Our S-61 helicopter is the best value proposition in the industry,” said David Adler, president of Sikorsky Aerospace Services.

“Increasing the U.S. State Department’s current fleet to 15 S-61 aircraft marks a significant milestone for the Sikorsky S-61 program,” added Anthony Serksnas, director, S-61 Programs.

The S-61 helicopter is known as an industry workhorse, and for more than 50 years has reliably and safely performed missions for U.S. and foreign allied militaries.

The upgraded S-61 helicopter incorporates key components including composite main rotor blades (CMRB), a state-of-the-art glass cockpit and modular wiring harness. Additional features have been incorporated to reduce pilot fatigue and maintenance requirements for increased safety.

The first delivery of the 11 upgraded S-61 helicopters for Iraq and Afghanistan is scheduled to occur in mid-2011.