IAC Acoustics A/S designs and delivers Hush Houses for operation and maintenance of civil and military aircraft. Hush Houses make testing and maintenance possible in all weather conditions, around the clock in a secluded environment where noise is reduced. Installed or dismounted aircraft engines can be tested under realistic load conditions.
APU Testing Facilities are test facilities for auxiliary engines. Auxiliary engines are most frequently referred to as APUs (Auxiliary Power Unit).
APUs are used to start the main engines of most aircraft, military vehicles, rockets and spacecraft.