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Helldiver Plane Found: Researchers Locate Another WWII Aircraft Missing In Palau For Over 70 Years News Service
March 31, 2015 00:45 EST

The World War II Helldiver, missing for over 70 years, was discovered in the waters of Palau. credit Eric Terrill

NEWARK, Delaware -- A United States Navy Curtiss SB2C Helldiver aircraft lost in World War II and missing for over 70 years was recently found resting in the tropical waters of the Republic of Palau.

The carrier-based dive bomber plane was discovered by a multi-disciplinary team from the University of Delaware's College of Earth, Ocean, and Environment (UD CEOE), Scripps Institution of Oceanography: University of California-San Diego, the Coral Reef Research Foundation and the BentProp Project.

Scientists used state-of-the-art technologies including unmanned underwater vehicles and high frequency sonar to search a high probability region of the sea floor, based on months of archival research and the team's scientific analysis of historic data collected by BentProp over the past 20 years.

The Helldiver was lost with two aviators onboard while flying missions in support of Operation Stalemate II, a time period of fierce fighting during the U.S. Marine Corps' landing on Peleliu. The location of the aircraft and a detailed site survey will be turned over to Palau government and the U.S. Defense POW/MIA Accounting Agency (DPAA), the agency responsible for recovery and identification of remains and the notification of families.

The discovery follows on the heels of an announcement last fall of the location of two other missing aircraft, a TBM Avenger and an FSF Hellcat. The remains of those two aircraft are now slated for recovery by the DPAA later this year, according to BentProp.

The new find was part of an expedition that began mid-March and continues through April. The Helldiver site was a priority search target as the historic data analysis suggested there was a high probability of finding the aircraft within a narrow search window.

After several days of missions using the undersea vehicles, sonar identified targets, which divers later verified to be the missing airplane in 100 feet of murky water.

Oceanographers Mark Moline, director of UD CEOE's School of Marine Science and Policy, and Eric Terrill of Scripps were the first on-scene at the historic find, along with members from BentProp. Five other aircraft targets are also on the priority list for the team to search for during this year's expedition.

About the partnership

A chance meeting brought the academic and not-for-profit teams together three years ago while the oceanographers from UD CEOE and Scripps were conducting marine research in Palau. Seed money from the U.S. Office of Naval Research enabled the researchers to apply emerging undersea technologies for purposes of finding aircraft associated with MIAs and to provide a platform for public science, technology, engineering and mathematics (STEM) outreach.