CRJ900:
Stretched 86-seat version (in a single class cabin), with the GE CF-348C5 engines, 13,360 lbf (59,400 N) thrust with APR, and added leading edge slats. Max GTOW is 82,500 pounds.The airplane is loosely based on the CRJ200 series with a few major improvements. The environmental packs have a target temperature instead of a hot-cold knob. The cabin has a recirc fan which aids in cooling and heating. The engines are controlled by FADEC digital engine control instead of control cables and a fuel control unit. The cabin floor has been lowered 2 inches which gains outward visibility from the windows in the cabin as the windows become closer to eye level height. The APU is a General Electric unit which supplies much more air to the AC packs and has higher limits for starting and altitude usage. The wingspan is longer, the tail is redesigned with more span and anhedral. In typical service the CRJ-900 can cruise 8-10,000 ft higher with a slightly higher fuel burn and an average true airspeed of 450-500 knots, a significant improvement over its predecessor. The FAA Type Certificate designation of the CRJ900 is the CL-600-2D24.
Currently Mesa Airlines, SkyWest, Northwest Airlink (Mesaba Airlines), Air Canada Jazz, and Delta Connection (Comair) operate the CRJ900 in North America. The first CRJ900 (N901FJ) was actually a CRJ700 with a longer fuselage plug fore and aft. It sits in Tucson, AZ, with only the flight test and ferry time on it. The CRJ900 competes loosely with the Embraer 175, and according to Bombardier is more efficient per seat-mile. The Embraer airliners have significantly more payload, range and a roomier cabin.
In June 2007 a total of 62 CRJ900 aircraft are in airline service, with 36 further firm orders. Major operators include Mesa Airlines (38) its launch customers, SkyWest Airlines (17) and Mesaba Airlines (13).
Comair, flying as Delta Connection, has ordered 14 CRJ-900s, with at least 6 in service as of Nov 2007. These are of interest as they are in a two class configuration, with 12 first class seats and 64 coach seats. This is due to a limitation in Delta's contract with its pilots which limits its regional carriers to flying 76-seat aircraft.
Dash 8 Q400:
The de Havilland Canada Dash 8 (sometimes abbreviated as -8) is a series of twin-engined, medium range, turboprop airliners introduced by de Havilland Canada (DHC) in 1984. They are now produced by Bombardier Aerospace, which purchased DHC from Boeing in 1992. Since 1996, the aircraft have been known as the Q Series, for "quiet" due to installation of the Active Noise and Vibration Suppression (ANVS) system designed to reduce cabin noise and vibration levels to less than those of jet airliners. Over 700 Dash 8s of all models have been built. Bombardier forecasts a total production run of 1,192 units of all -8 variants through the year 2016
Tags: Bomardier Dash CRJ700 CRJ800 CRJ900 Montage Cool Amazing Flight De Havilland
