Aug 25, 2009 · The main thing that changed between the two airplanes is the higher bypass ratio and higher core compression ratio of the GEnx-2B on the 747-8. The core won't windmill at a high enough rpm to run the engine mounted hydraulic pumps at a level sufficient to meet 25.671(d).

Oct 2, 2018 · BravoOne wrote:Flaps 1 - 285 5 - 265 10 - 245 20 -235 25 - 210 30 - 185 Thanks! So, it's easy: just add 5 knots to the 744 values and you have the speeds for the 748.

Oct 24, 2011 · However AFAIK for load relief control the new FBW roll computer on the 747 -8 series is active during the whole flight regime. The vibration - also known as a limit cycle oscillation (LCO) - was observed during flutter testing and saw the aircraft wing tip deflecting ±2.5cm (1in) at frequency of 2.3Hz.

Mar 13, 2004 · I know this is completely irrelevant to the topic. All NWA and CO Express propliner start the starboard propeller, or engine no.2, first because passengers board from the port side of the aircraft.

Sep 21, 2021 · The 747-8 and the 747-400 have an almost identical thrust/weight ratio. The 747-8 uses a variant of the GE-nx with a 6.5" smaller fan that produces less thrust than the other GE-nx. For less development cost the 747-8 could have used a bleed-air version of the normal GE-nx, with more thrust (74,100 vs 65,000).

Dec 15, 2018 · When the passenger version of the 747-8 was put in service, it couldn't use the fuel tanks in the horizontal stabilizers, because FAA/Boeing have found that under certain circumstances (strut failure), it could induce flutter. As far as I reckon, this issue has been fixed around 2013, about a year after entry in service with LH.

Apr 6, 2024 · When I fly 747's I usually try to sit right at the back where the 2-4-2 configuration begins. I just flew Air China's 747-8 a fortnight a go and sat right at the back of the plane. Only downside it takes longer to get off the plane.

Jan 10, 2006 · The blended wingtip to be fitted on the 747-8 is a more advanced device than the current 744 winglets. They are more structurally and aerodynamically efficent. USER_MINI_PROFILE

Nov 24, 2005 · And the lengthy flight testing program that will have to be done to certify the new fly by wire flight controls of the 747-8 and 9 for such a small number of airplanes expected to be sold in total. Boeing is not anti fly by wire with their flight control design on the 777 and now the soon to fly 787, their philosophy of operation is completely ...

Jun 27, 2023 · They wanted the 747-8 to haul a full load from Dubai to LAX, but this was not possible after the 747-8 got the stretched fuselage. I remember this, sort of a very slightly longer 747-400 fuselage with the -8i wings/engines/weights. When it got its second stretch on the drawing board that pretty much cancelled any chance of EK wanting it