#cargolux

Underside of a Cargolux Boeing 747-8F cargo aircraft.

A Cargolux 747 in a 50th Anniversary livery braking on a wet runway at Glasgow Prestwick Airport

Our Wonderful World   1969, 1961, 1960, 1959, 1951    

@postcardtimemachine

Cargolux, Boeing 747 #airlines #cargolux #luxembourg https://www.instagram.com/p/CX_fhNXlUHS/?utm_medium=tumblr

Cargolux's Boeing 747 (LX-VCF) is now flying with a mask. 😷✈️

I havent posted in a while, but here is a Cargolix Boeing 747-8 LX-VCC in the Cargolux 50 years special livery as it flew over my garden around 9am 13 Apr 2020. As a non-frontline NHS worker of many years I feel that I am seeing the Covid19 issues from different sides, from the bravery and dedication of those in our cherished NHS to the massive effects from the necessary social distancing and the effects on businesses and my other passion - aviation Let's all hope for better times ahead. Stay safe and well. Love and cherish the NHS or your own healthcare systems, stay home where possible. #cargo #cargolux #planes #aviation #avgeek #aviationpics #aviationphotography #airplanes1001 #airplanes #boeing747 #boeing7478 #London #staysafe #betterfuture https://www.instagram.com/p/B-6jHbJh4tF/?igshid=3bqm2a0zjn83

The sawtooth trailing edge of the Boeing 747-8 family or nacelle chevrons are for noise reduction- during the design phase, computational fluid dynamics was used to optimize the shape and cant of the chevrons- each tip is canted inward slightly into the bypass flow. ⠀ ⠀ Jet exhaust noise is the result of turbulence in the exhaust flow. ⠀ ⠀ Each chevron tip creates a vortex that speeds the mixing of the cooler bypass flow with the hot core flow, reducing the turbulence from the mixing of the two flows- but CFD was needed to optimize the chevrons as too much of a vortex could cause more turbulence and actually increase noise. ⠀ ⠀ A Boeing 777 flew with a testbed chevron nacelle to validate the CFD work under the Quiet Technology Demonstrator program. The 747-8 and 787 were beneficiaries of the QTD program and on the 747-8 family, the chevrons reduce engine noise by a significant 4 dB. As the nose decibel scale is logarithmic and not linear, a 4 dB reduction in engine noise is remarkable.⠀ ⠀ The GEnx (General Electric NeXt generation) engine used on the 747-8 family first ran in 2006 and is the replacement in the GE turbofan portfolio for the CF6-80C2. Used on both the Boeing 787 and the 747-8i/8F, the GEnx is an advanced evolution of the GE90 turbofan used on the Boeing 777. ⠀ ⠀ With significant aerodynamic and materials improvements, the GEnx engines on the Boeing 747-8i/8F have a 15% better fuel burn than the CF6-80C2. Much of what went into the GEnx engine is also used on the CFM LEAP-X engine.⠀ ⠀ November Aviation Photo Challenge | @kjdphoto1971 | #1119planes | “Takeoff/Landing” | Day 21⠀ ⠀ #Avgeek #aviation #aircraft #planeporn #KDFW #DFW #airport #igTexas #planespotting #airlines #Boeing #747 #Cargolux #dfwavgeek #instagramaviation #LXVCE #splendid_transport #instaaviation #aviationlovers #aviationphotography #flight #aviationphotography #AvgeekSchoolofKnowledge #AvGeeksAero #AvGeekNation (at DFW Airport) https://www.instagram.com/p/B5IKVVyBdhh/?igshid=ha5jne8t2keh