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GE Générique

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Beochien
Whisky Charlie

GE Générique

Message par Beochien le Mer 19 Mai 2010 - 18:44

Bonsoir !

Le CF34 NG est annoncé !

Bien, GE procède à l'inverse de RR, et P&W, 3 Coeurs pour la future génération, en commençant par le haut !
Le premier, c'est le Leap X, avec SNECMA, à travers l'alliance CFMI , et déjà un marché pour le COMAC Chinois, les itérations suivantes, à compte propre de GE!
Démarche contraire à RR qui part du plus petit, prévu pour Dassault et qui traîne un peu ... on attends que ça avance .... pour l'instant, à part Sévrien ... personne de chez RR ne parle silence radio !
De même pour P&W qui à commencé par le bas, côté Mitsu et Bombardier, a peu prés en même temps, et qui courre tant qu'ils peuvent vers les motorisations de 23-30 000lbs, pour ne pas manquer le train des re-motorisations A320, et peut être B737, et en développement aussi côté Russe pour le MS21 !

Intéressant, 3 constructeurs sur le même créneau ! avec 3 cœurs, dans le même échelonnement , à 1-2 ans prés !
Gagnant sur ce coup de GE .... Embraer vers 2005 ! Un client de lancement éventuel, un nouveau modèle, non! mais re-motorisations diverses, et celle du EB390 du même coup, très possible possible pour GE, qui réponds enfin à sa demande (C'est moi qui l'anticipe)
Éventuellement bombardier, qui pourrait peut être bénéficier d'une seconde motorisation, le CS100 peut être, ou en dessous comme le dit "Paul" si son C-Séries se vend mieux ... merci Gecas !

Noter, une techno non dévoilée pour gagner du poids sur les Blisk ! Tant mieux!
Et une décentralisation des Fadecs et de l'électronique vers la nacelle .... Toujours cela de gagné en fiabilté "Climatique"

Conclusion ... ben nos 3 grands motoristes avancent sur un même front, dans une quasi même génération, va falloir monter un Excel pour les départager !

Grand perdant ... le Superjet et son "SNECMA" SAM 146 , qui vont faire pâle figure !

---------------- L'article Flight Global ---------------------

http://www.flightglobal.com/articles/2010/05/19/342158/ge-techx-engine-set-to-lead-new-generation-of-turbofans.html

GE TechX engine set to lead new generation of turbofans
By John Croft

GE Aviation says the turbofan that will result from its TechX development programme for large-cabin business jets will be among the first of the company's three new next-generation engine types to be certificated.

"Milestones and tests are already under way and we think we can have the engine certificated in 2015," says Shawn O'Day, marketing manager for GE's business and general aviation unit. No customer has yet signed for the powerplant, but O'Day says "very detailed design work is under way for all aspects of the engine".

GE is building a fuel and emissions-cutting common core technology that applies to the 10,000-20,000lb-thrust (44-89kN) range for TechX, a 14,000lb-thrust class CF34 successor, provisionally known as the NG34, that is being marketed to the 70- to 100-seat regional airline market and, through its CFM 50/50 joint venture with Snecma, a 33,000lb-class Leap X turbofan for the single-aisle airline market.

To date, the only version to have a launch customer is the Leap X1C, which has been selected by Comac for the 150-passenger C919. Comac says the aircraft will enter service in 2016.

GE builds the core for CFM products while Snecma builds the low-pressure sections and fan.

Testing of the first of three engineering cores was expected to be complete by mid-May, with a second more representative core set to start testing by mid-2011. The eCore2 will feature a 10-stage high pressure compressor and two-stage high-pressure turbine, elements common to the core for all three next-generation engines.

For the low-pressure turbine, O'Day says GE is looking at "unique technologies" to reduce the weight, particularly for blisks.

In a nod to maintenance providers, GE is also studying an option to mount the full authority digital engine controller on the nacelle rather than on the engine itself for easier access and lower temperature operations.

JPRS

Beochien
Whisky Charlie

Re: GE Générique

Message par Beochien le Sam 4 Sep 2010 - 8:47

Bonjour !

Bien, avec les pépins et autres uncontained failures que la famille des GE 90 XXX à traversé !
Lesquels pépins ont l'air sous contrôle depuis 2 ans ! Celà a du coûter un peu, menfin, le succés est quand même là !

Eh bien vu la taille de l'avion, le 777, GE ne se plaindra pas de son investissement !

Le millième sous l'aile vient de décoller, sans compter les rechanges fabriquées, bienvenues dans qq cas !

Une info de PM du Japon, qui démarre un thread chez A.net (Quote)

PM www.airliners.net/graphics/ipflags/jp.gif" style="width: 18px;height: 12px" alt="" /> From Japan, joined Feb 2005, 5767 posts


------------- Le lien Airliners.net ------------

http://www.airliners.net/aviation-forums/general_aviation/read.main/4919874/

[color=#c4c8cc]Yesterday,
3rd September 2010, 777-300ER l/n 893 (to be A7-BAL for Qatar Airways)
made its first flight. It is the 500th 777 to fly with GE90s.

(For the record, 167 have PW and 226 have RR.)

Of these 500 777s with GE90s...

9 x 777-200
161 x 777-200ER
35 x 777F
47 x 777-200LR
248 x 777-300ER

Thus, 170 have the first generation GE90s (-76, -85, -92, 94) and 330 have second generation engines (-110, -115).

They are currently flying with 42 operators.

The largest operators are:

Emirates (65)
Air [color=red][color:00ca=red ! important][color:00ca=red ! important]France
(57)
British Airways (29)
JAL (24)
Saudi Arabian (23)
Continental (22)
Qatar Airways (22)
Air [color=red][color=red ! important][color:00ca=red ! important]India (20)
All Nippon (19)
KLM (19)
Singapore [color=red][color=red ! important][color:00ca=red ! important]Airlines (19)
Air Canada (18)
Cathay Pacific (18)
China Southern (15)
EVA (15)

The first delivery was to British Airways in November 1995. GE will
therefore have delivered 1,000 installed engines (+ spares) in almost
exactly 15 years.

Deliveries (777s with GE) were:

1995 : 3
1996 : 5
1997 : 18
1998 : 32
1999 : 31
2000 : 8
2001 : 9
2002 : 15
2003 : 15
2004 : 23
2005 : 25
2006 : 48
2007 : 70
2008 : 58
2009 : 84
2010 : 50 (to the end of August)

The first 777 with the GE90-115 flew in 2003 and is now in service with JAL.

The first -300ER delivered went to Air France in 2004.

There are still 230+ 777s with GE on order so we can confidently expect at least 1,500 GE90s to be built.

To add a little context, the current most popular widebody twin / engine
combination is the 767 with the GE CF6. (698 ordered and virtually all
delivered.)

Orders for the GE90-powered 777 already exceed that despite being bigger and having been on sale for a far shorter time.

The 777 with the GE90 has become the most successful airframe/engine combination in widebody twin history.

---------------
Belle compil !

JPRS

Beochien
Whisky Charlie

Re: GE Générique

Message par Beochien le Mar 21 Sep 2010 - 12:17

Bonjour !

GE fait avancer les CMC, dans le moteur du F18 !
CMC = ceramic matrix composite

------------- De Aweek, l'article -------------

http://www.aviationweek.com/aw/generic/story.jsp?id=news/avd/2010/09/17/10.xml&headline=New%20GE%20Engine%20Has%20Potential%20For%20Commercial%20Use&channel=mro
New GE Engine Has Potential For Commercial Use

Sep 20, 2010
GE Aviation expects to begin ground tests in October in Peebles, Ohio, on a unique GEF414 F/A-18 fighter jet engine featuring a ceramic matrix composite low-pressure turbine blade that offers weight-savings and fuel-efficiency potential for military and commercial engines. Ceramic matrix composite (CMC) technology has worked its way onto jet engines in the past, including the hot sections. GE has applied it to liners, shrouds, nozzles and vanes. The significance of the low-pressure turbine (LPT) blade, which measures about 4-in. long and weighs a few ounces, is that it is the first time the company has been able to make a CMC rotating part, says Dale Carlson, head of GE’s Advanced Engine Systems unit in Evendale. The technology is half the weight of titanium and a third the weight of nickel, both metals prized for their strength and heat resistance for engine interiors. Ceramic matrixes also are resistant to heating, so they reduce the need for internal cooling flows. A set of CMC vanes could drive 500-1,000 lb. from an engine’s LPT system, Dale says. The material’s brittleness has been a drawback, although Dale says the LPT blade GE has produced does not suffer that problem. The technology holds the promise that designers can pursue constant volume combustion to reduce fuel burn in engines because their pressurization increases can be kept constant, he says. The research was conducted under a Naval Energy Initiative contract from Naval Air Station Patuxent River, Md.
JPRS


Poncho (Admin)
Whisky Charlie

Re: GE Générique

Message par Poncho (Admin) le Mar 21 Sep 2010 - 14:01

Et pour rajouter

Brittleness = friabilité

Gros gain de poids sur la LPT (typique un gain qui serait moints important sur un GTF par exemple)

Quelle échéance ? Pas le LeapX1C du C919 à mon sens
Les itérations suivantes ?


_________________
@avia.poncho

Beochien
Whisky Charlie

Re: GE Générique

Message par Beochien le Mar 21 Sep 2010 - 14:15

Re bonjour Poncho !

Pour le LeapX, sais pas, les protos se succédent faudra vérifier de nouveau !
Pour le GTF, ils ne prennent pas de risques au départ, le Tx de dilution assure les 15-16 points en grande partie ! C'est l'échéance 20% pour 2020 pour les nouveaux matériaux !
Pour RR c'est le flou artistique, visiblement le 15% étant très loin d'être atteint, pour le RB282, ils ont tourné la page vers l'Advance 1 ou 2 sais plu, 0 info non plus !
Rien de visible chez RR demander au il doit savoir !
Les CMC surement présents, pour essayer d'atteindre le 20% avant les autres, vers 2018 peut être ! ils ont Zappé le 15%, loupé, c'est tout !
C'est clair et net chez RR, sauf peut être pour le gros TXWB merci pour Airbus

JPRS

Poncho (Admin)
Whisky Charlie

Re: GE Générique

Message par Poncho (Admin) le Ven 15 Oct 2010 - 15:14



_________________
@avia.poncho

Beochien
Whisky Charlie

Re: GE Générique

Message par Beochien le Mar 1 Mar 2011 - 19:52

Bonjour !

GE, met au musée ou à la casse son banc d'essai volant 747 (Un des premiers 747-100 )
Pour en remettre un plus récent en service !
Un 747-400 CF-6 (Un peu moins vieux du moins)
Inauguration dans 2 ans, avec le leap-X !

---------- Bloomberg qui reprend une com GE !-------------

http://www.bloomberg.com/apps/news?pid=conewsstory&tkr=BA:US&sid=a_3ds5og53Sg

JPRS

http://www.bloomberg.com/apps/news?pid=conewsstory&tkr=BA:US&sid=a_3ds5og53Sg

Poncho (Admin)
Whisky Charlie

Re: GE Générique

Message par Poncho (Admin) le Jeu 21 Fév 2013 - 10:30

Bonjour

Petit focus sur ADVENT
http://www.flightglobal.com/news/articles/general-electric-completes-advent-core-testing-382542/?cmpid=SOC|FGFG|twitterfeed|Flightglobal

General Electric (GE) says it completed engine core testing for its
ADaptive Versatile ENgine Technology (ADVENT) demonstrator earlier this
month on 6 February. The prototype variable-cycle engine reached the
"highest combination of compressor and turbine temperatures ever
recorded in aviation history", says the company, which is working on the
programme for the US Air Force Research Laboratory (AFRL).

GE says that the ADVENT effort will wrap-up later this year with a
full engine test. However, the technologies developed through the
programme will be used on the AFRL's the follow-on Adaptive Engine
Technology Demonstrator (AETD) development.
"This is a critical milestone that gives us great confidence as we
prepare for the full engine test in ADVENT later this year and move
forward on the design of the AETD engine," says Dan McCormick, GE's
general manager for the ADVENT and follow-on AETD programmes. "We'll
integrate these proven ADVENT technologies into our AETD engine, along
with advanced controls and exhaust system designs."

GE attributes the accomplishment to advanced lightweight,
heat-resistant ceramic matrix composite (CMC) materials, which combined
with an adaptive low pressure spool, result in a 25% improvement in fuel
efficiency, a 30% increase in operating range and a 5% to 10%
improvement in thrust compared to existing fixed-cycle engines.

GE says it completed the initial design review for its version of the
AETD engine on 8 February. A preliminary design review milestone is
scheduled for November 2014. The AETD programme will conclude in 2016
following fan rig testing and a core engine test.


_________________
@avia.poncho

Poncho (Admin)
Whisky Charlie

Re: GE Générique

Message par Poncho (Admin) le Lun 6 Jan 2014 - 12:17



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@avia.poncho

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Re: GE Générique

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