The Conroy Tri-Turbo-Three was a Douglas DC-3 fitted with three Pratt & Whitney Canada PT6A turboprop engines by Conroy Aircraft; the third engine was mounted on the nose of the aircraft.

Design and development First flown on 2 November 1977,Air International November 1978, p. 252. the cruise speed of the aircraft was increased to . The engine mounted on the nose could be shut off, decreasing the speed to and increasing the range of the aircraft. It was used by Polair and Maritime Patrol and Rescue. It was fitted with skis for use in polar regions and flew in the North Pole region out of Resolute Bay Airport in Canada. It was uniquely suited for flying long distances and landing on rough, unprepared snow runways.

In this role it was instrumental in opening up the interior of Antarctica to private expeditions and tourism. Most notable was a 1983 expedition transporting eight members of the Seven Summits expedition, plus a crew of three, to the Antarctic for a first-ever assault on Mount Vinson. After being relegated to a Tucson boneyard, it was purchased by Warren Basler in 1992.

Specifications

See also

References

"Airdata File: Specialized Aircraft Tri Turbo-3". Air International, November 1978, Vol 15 No 5. p. 252. Gunston, Bill. The Illustrated Encyclopedia of Propeller Airliners. London: Windward/Phoebus, 1980. .

External links

Tri-Turbo 3 Goleta Air and Space Museum