Australia-based GippsAero announced yesterday at EAA AirVenture in Oshkosh, Wis., that it will build a stretched turboprop derivative of its piston-powered GA8 Airvan, in addition to expanding its footprint in North America. Certified production of the GA10 turboprop single is expected to begin in 2013. Gipps also announced yesterday that it has selected the 715-shp Rolls-Royce M250-B17F/2 to power the 10-passenger aircraft, which it hopes to bring to market for a unit price of $1.3 million. The GA10 will be certified with fixed gear and floats. Preliminary data indicates the aircraft will have an mtow of 4,450 pounds and have an endurance of approximately five hours at 150 knots. The aircraft will be built in Victoria, Australia. Gipps also said it is developing a twin turboprop–the GA-18, based on the N24 Nomad–for certification in 2014. Separately, Gipps announced it is seeking a North American assembly facility for its GA8 Airvan and has plans to increase its dealer network here. Currently, 26 GA8s operate in North America. Gipps is a division of India-based Mahindra Aerospace.