Announced at the 1999 Paris Air Show, the Challenger 300 made its maiden flight on 14 August 2001, received its Canadian type approval on 31 May 2003 and was introduced on 8 January 2004. The Challenger 350 was approved on 11 June 2014. By December 2017, over 650 were delivered including over 200 Challenger 350. The fuselage and the wing are semi-monocoque aluminum structures, the winglets are composite. Outboard ailerons are manually actuated, elevators and rudder are hydraulic with a mechanical backup, fly-by-wire spoilers augment roll control, act as speedbrakes and dump lift on the ground, hydraulic single-slotted fowler flap have four positions : 0/10/20/30°. The Rockwell Collins Pro Line 21 avionics include four LCD displays, an EICAS and Maintenance Diagnostics Computer, an EGPWS, a TCAS II and an ELT. For more details of both models, click here. The specifications below are for the mdel 350.