GVFlyer
Well-known member
- Joined
- Feb 22, 2002
- Posts
- 1,461
Unleaded said:.85 or .86 on the natracks east bound is about average.
Gulfstream took a Citation X in on a trade and let the flight test engineers have it for qualitative testing before it was resold (this competitive analysis is something many manufaturers do, Bombardier leased and instrumented a GV, but they were disappointed in their results; Cessna sent an Experimental Test Pilot to GV initial at FSI). The engineers ballasted the X to 8 pax and put the requisite test stations and orange wire in the jet and this is what they came up with including NBAA IFR reserves:
Normal Cruise - M 0.85 Range: 2,613nm
Long Range Cruise - M 0.82 Range: 2,767nm
Intermediate Cruise - M 0.90 Range: 1,889nm
High Speed Cruise -M 0.92 Range: 773nm
MMO - M 0.92M
Takeoff distance 5,140ft.
(SL,ISA, MGTOW)
Landing distance 3,410ft.
(SL,ISA,MLW)
Initial Altitude FL 430
When ballasted for 4 passengers the engineers got:
M 0.85 - 2,978 nm
M 0.82 - 3,098 nm
M 0.92 - Not Tested
The test crew observed that the highest cruise speeds occured in the mid- 30's, but fuel consumption increased by almost 50 percent. Flying in the 40's dropped cruise speed by 25 to 35 knots, but available cruise speed was still up to 499 knots.
Unleaded said:The only X's that go between the service centers are NJA's. Corp Citations do very well on the road.
In the last 12 months US Bank grounded then sold their Citation Xs and General Motors, citing a lack of reliability in their five Citation Xs, replaced them with Gulfstream G350s.
GV