NASA Twin Otter aircraft in flight over northern Ohio. The aircraft has been utilized for numerous research projects conducted at NASA Glenn Research Center in Cleveland, Ohio.
Environmental portrait of research engineer Roger Tokars in front of the Twin Otter research. This image was taken inside the Hangar at NASA Glenn Research Center.
Cuyahoga County Mayors and City Managers Association Members tour the Glenn Research Center Hangar and learn about the role of the Twin Otter aircraft in the GRC Icing Research Program
Mt. Dana and Dana Plateau in the Tuolumne River Basin within Yosemite National Park, Calif., as seen out the window of a Twin Otter aircraft carrying NASA Airborne Snow Observatory on April 3, 2013.
This photo, aken onboard a National Science Foundation/NASA chartered Twin Otter aircraft, shows the ice front of Dibble Ice Shelf, East Antarctica, a significant melt water producer from the Wilkes Land region, East Antarctica.
The Lockheed Viking S-3B aircraft is being pulled out of the hangar at Glenn Research Center in preparation for its departure and retirement from service. This former NAVY aircraft was the last such aircraft still flying. It has gone to a museum on the west coast. After leaving service with the NAVY, it came to GRC to be used in aircraft icing experiments. The swept wings made it suitable for such research as opposed to the straight wings on GRG’s other icing research aircraft, the De Havilland Twin Otter.