Wednesday, October 26, 2011

Dave Campbell, Lockheed Martin P-3 Chief Engineer

We've gone to break at the 2011 IOSC, so this gives us a chance to go back to the presentation by Dave Campbell, the Lockheed Martin P-3 Chief Engineer, earlier this morning.

There are several programs under way at Lockheed Martin, including a new flutter model; winglets; T56-A-14 Series 3.5 engine upgrade; studies with the SeaVue radar for US Customs and Border Protection; service life assessment; and continuing projects with the ASIWG.

Flutter Model: LM is working with the Royal Canadian Air Force to replace the historical half-aircraft model using full finite element models to more accurately model flutter.

Winglets: Installing winglets will result in fuel savings, increasing range, and increased time on station. Wind tunnel testing has shown measurable cruise drag reductions. The testing has also shown a 2-to-3 percent increase in cruise and a 4-to-6 percent in loiter time.

For a typical ASW mission (755 n.m), having the winglets will result in 5 percent increase in fuel savings, 7.5 percent increase in time on station, and a 12 percent in range, increasing effective mission range to 845 n.m.

For a mission with a T56 Series 3.5 engine upgrade and external stores, the numbers are even more impressive -- 15 percent increase in fuel savings, a 22.5 percent increase in time on station (or about 1.8 hours) and significantly increased range (from 224 n.m. to 875 n.m).

SeaVue Radar -- computational fluid dynamic modeling on the SeaVue installation has been done and Lockheed Martin is now conducting an operating envelope assessment.

Sevice Life: Lockheed Martin is looking at a 228 aircraft fleet using data from the full-scale fatigue testing program that was completed a couple of years ago.

ASIWG -- Airframe Sustainment International Working Group -- this a data exchange between Lockheed Martin and the US Navy, Canada, Norway, Australia, and Germany. Discussion topics include maintenance inspection, maintenance recommendations, and structural analysis.

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