Chinook gets better missile protection

Paris Air Show » 2007
June 19, 2007, 10:14 PM

Newly acquired Boeing Chinook CH-47F heavy-lift helicopters supplied to the royal Netherlands air force are to be fitted with a state-of-the-art modular pod designed to protect it from missiles fired by hostile ground forces. Developed by Terma and building on its previous experience in protecting Apache helicopters in a similar way, the pod solution has been tailored to the needs of forces operating in the difficult environments found in Iraq and Afghanistan.

Dubbed the Chinook Aircraft Survivability Equipment (CHASE), the system comprises three missile sensors and one laser turret installed on each side of the helicopter. This not only provides a 360-degree spherical coverage but also a mechanical integration between the missile warning sensors and the Directed Infra-Red Countermeasures (DIRCM) produced by Northrop Grumman.

After initial flight tests to be conducted next month, Terma will provide CHASE as an integrated part of Boeing’s delivery of the new helicopters starting in 2008. The pods are mounted directly on to the helicopter main frame to minimize dynamic in-flight impact that can cause optical sensor distortion.

Alternative installations of sensors on the fuselage will need to deal with airframe twist, which can be significant during extreme maneuvers in the Chinook. This can cause misalignment between the sensors and the DIRCM system, which again can result in distortion of overall performance and an increasing number of false alarms.
Terma notes that CHASE can be installed with minimum downtime, while the possibility exists for sharing the units across a fleet of helicopters rather than install fixed aircraft survivability equipment assets to each individual aircraft.

FILED UNDER: 
Share this...

Please Register

In order to leave comments you will now need to be a registered user. This change in policy is to protect our site from an increased number of spam comments. Additionally, in the near future you will be able to better manage your AIN subscriptions via this registration system. If you already have an account, click here to log in. Otherwise, click here to register.

 
X