#model525

My prior post about the Williams FJ44 engines of the Cessna CitationJet (Model 525) series mentioned that a new generation of lightweight but superbly fuel efficient engines was one of the things that made the CitationJet more fuel efficient than turboprops it size. But the other key to the CitationJet’s performance is its natural laminar flow wing that has less drag than a non-laminar flow wing it’s size/sweep and that also means more speed. When you look at the design of the Citation series of jets, particularly from the Citation III onward, it’s hard not to think of Cessna as one of the most unheralded centers of aerodynamic design excellence in the industry. Designed with the assistance of NASA, the natural laminar flow airfoil of the CitationJet had laminar flow to an impressive 31% of the wing chord. The wing and airfoil section was tested believe it or not on a modified Cessna 210 Centurion. One of the challenges in designing laminar flow wings is being able to main the laminar flow over as much of the wing as possible. #avgeek #aviation #aircraft #planeporn #KADS #ADS #Addison #airport #planespotting #instaplane #instagramaviation #Avgeekery #Cessna #Citation #CitationJet #CJ1 #Model525 #N853SD #splendid_transport #instaaviation #aviationlovers #aviationphotography #flight #AvgeekSchoolofKnowledge (at Addison Airport)

The last of the original Cessna Citation I (Model 500) straight wing jets ended production in 1985 and although superseded in the Citation product line by the Citation II (Model 550) that would go on to be produced until 2006, Cessna remained committed to the idea of an entry level light jet- the straight wing entry level jet created a new market that Cessna dominated for years and wasn’t yet ready to yield- at the 1989 NBAA Convention, Cessna announced the Model 525 CitationJet as a clean-sheet successor to the Citation I series that would be single-pilot capable from the start. Making its first flight in April 1991 just two years after the program launch, CitationJet (also called the CJ) only shares a modernized nose section of the original Citation I family. The goal of the program was to better the Citation I in terms of performance, operating costs, and weight. Of the original CitationJets, there are four variants- line numbers 0001 to 0359 are the original CitationJet variants that were marketed as modern successors to the Citation I. Line numbers 0360 to 0599 are marketed at the CitationJet CJ1 and have a more modern EFIS avionics suite with an increase max gross weight. Line numbers 0600 and up are the CitationJet CJ1+ variant with has more powerful engines with FADEC controls and a further upgraded avionics suite. The fourth version is the Citation M2 which has further uprated engines for hot/high performance and a Garmin G3000 avionics suite which replaces the Rockwell Collins Pro Line 21 avionics suite. The Citation M2 is the replacement for the Citation Mustang VLJ (we’ll get to that one soon enough). This particular CJ is a CJ1+ on its takeoff roll at Addison Airport in North Dallas. #avgeek #aviation #aircraft #planeporn #KADS #ADS #Addison #airport #planespotting #instaplane #instagramaviation #Avgeekery #Cessna #Citation #CitationJet #CJ1 #CJ1+ #Model525 #N853SD #splendid_transport #instaaviation #aviationlovers #aviationphotography #flight #AvgeekSchoolofKnowledge (at Addison Airport)