Air jet noise reduction

Two 737 Boeing Business Jet (BBJ) special purpose aircraft joined the Air Force fleet in 2002. They have a crew of up to six (pilot and co-pilot and up to four crew attendants) and are capable of carrying up to 30 passengers.

Based at Defence Establishment Fairbairn in Canberra, these aircraft are operated by Number 34 Squadron . Number 34 Squadron operates and crews the special purpose fleet of BBJs and CL604 Challengers .

The BBJ combines the fuselage of the Boeing 737-700 aircraft with a strengthened aft section, and the centre-section, wing and landing gear of the 737-800 aircraft. Winglets are standard, affording 5 to 7 per cent reduction in cruise drag, resulting in 4 to 5 per cent increase in range.

Examples of highly successful noise control solution that often save companies thousands of pounds on industrial noise reduction , suppression, cancelling

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Noise Reduction Rating (NRR) is a unit of measurement used to determine the effectiveness of hearing protection devices to decrease sound exposure within a given ...