[Réel] Questions sur le retrofit des sharklets sur A320

HB-ZER · [↑]

Bonsoir,

Je ne sais pas trop si cette catégorie est adaptée à ma demande, mais il y a plusieurs questions que je me pose sur les sharklets.

Notamment sur le retrofit, il est possible de les mettre uniquement sur les avions sortis d'usine dès 2012 (sauf erreur ?) car ils possèdent les renforcements d'aile ?

Ou est-il possible d'installer des renforts sur les avions plus anciens ?

L'augmentation de la masse est de 500kg mais c'est uniquement les sharklets ou les renforts sont compris dedans ?

Avec mes remerciements pour vos futures réponses.

bede40 · [↑]

Airbus expects to be able to launch a retrofit programme for sharklet wing-tips on the A320 by around March-April, having determined the technical requirements for the modification.
The airframer has transferred to a new wing standard for the A320, which includes reinforcement to accommodate optional sharklets.
But Airbus has been evaluating demand for a possible sharklet retrofit for the previous wing standard, although this would require more extensive reworking of the type's wing-tip.
Executive vice-president for programmes Tom Williams says the company has authorisation to offer the retrofit but has been "trying to see if there's enough interest".
But he says that the airframer believes it will have "enough numbers" to launch the retrofit by around March or April, and that the first aircraft could be modified by the latter half of 2014.
The change would take around three weeks and customers would probably schedule the retrofit to coincide with a C-check to minimise downtime.
It involves removing a "couple of metres" of the outer section of the wing, says Williams, and installing a replacement kit.
This includes fitting a "bathtub" structure, he adds, which provides local mechanical reinforcements, and reinforced skin and stringers, a task which requires removing part of the leading edge, wing skin and aileron.
"We had a lot of interest from customers," he says, without disclosing identities of potential initial clients. Williams adds that the retrofit is attractive to A320 operators wanting to maximise residual value.
He says there is a "bit of a weight penalty" from the reinforced outer section. But analysis indicates that the retrofit would provide the same aerodynamic benefits and fuel-burn reduction - around 4% on long sectors - as achieved with new-build sharklet-equipped A320s.
Airbus has neutralised the weight increase on the reinforced wing for new-build A320s, by compensating elsewhere.
Fitting sharklets to this new wing is a much simpler modification, adds Williams, requiring only a brief swap of the normal wing-fence for the sharklet tip and the uploading of new software to the flight-management system. "That's probably the longest part of the process," he says.

Pour la masse je n'ai rien trouvé, mais celle que tu indiques peut être justifiée par le remplacement d'une partie de la voilure et l'intégration des renforts.

Pour 2012, c'est ce que donne Airbus sur son site pour la proposition de l'option sur les avions neufs, ceux vendus sans et les plus anciens doivent être modifiés pour en profiter:

Cuts fuel burn by up to 4%, lengthens in-service life
Airbus has launched the Sharklet retrofit programme for in-service A320 Family aircraft. This option will be available in 2015. Operators of older in-service A320 Family aircraft will thus be able to benefit from the significant cost savings and performance improvements which the Sharklets are already delivering on new-build aircraft.
This retrofit includes reinforcing the wing structure and adding the Sharklet wingtip device. As part of the upgrade, the retrofit will lengthen the aircraft’s service life and thus maximise the operators’ return on investment for the Sharklet retrofit.
Didier Lux, Airbus Executive Vice President, Customer Services said: “Customers of new A320 Family aircraft are unanimously enthusiastic about the benefits which Sharklets already bring to their operations. Now we can also offer this value-adding technology for upgrading their in-service aircraft, to increase range, reduce fuel-burn, while saving over 900 tonnes of CO2 per year, per aircraft.”
Operators of Sharklet retrofitted aircraft will benefit from a reduction in fuel costs by up to four per cent and increased mission range by up to 100 nautical miles. Over 4,000 A320 Family in-service aircraft are eligible to be retrofitted with Sharklets and Airbus has already secured commitments from airlines for around 200 shipsets. Airbus will offer the retrofit initially for A320 and A319 models and will evaluate a retrofit for the A321 at a later stage.
Airbus has been delivering Sharklets as an option on new-build A320 Family aircraft since December 2012. In addition, the Sharklet retrofit option is being sold for newer aircraft delivered with the wings structurally reinforced in production. All members of the A320neo Family will be fitted with Sharklets as standard. The A320neo will enter into service in October 2015.
The A320 Family is the world’s best-selling and most modern single aisle aircraft Family. To date, over 9,900 A320 Family aircraft have been ordered and over 5,700 delivered to more than 388 customers and operators worldwide. With proven reliability and extended servicing periods, the A320 Family has the lowest operating costs of any single-aisle aircraft

Je n'ai pas de suite pour

Airbus will offer the retrofit initially for A320 and A319 models and will evaluate a retrofit for the A321 at a later stage.

Dernière modification par bede40 (14-09-2019 00:49:08)

bricedesmaures · [↑]

Poids: 200 kg par sharklet. Voir article page 11

Dernière modification par bricedesmaures (14-09-2019 02:48:10)

bricedesmaures · [↑]

https://m.youtube.com/watch?v=eoswy2rIW5U

HB-ZER · [↑]

Merci beaucoup pour toutes ces informations. J'en ai profité de lire le document qui parle du green taxi, c'est très intéressant.

Le coût du retrofit complet tourne autour du million d'euros ?

#1 [↑][↓] 13-09-2019 19:46:31

[Réel] Questions sur le retrofit des sharklets sur A320

#2 [↑][↓] 14-09-2019 00:44:20

Re : [Réel] Questions sur le retrofit des sharklets sur A320

#3 [↑][↓] 14-09-2019 02:47:26

Re : [Réel] Questions sur le retrofit des sharklets sur A320

#4 [↑][↓] 14-09-2019 14:09:02

Re : [Réel] Questions sur le retrofit des sharklets sur A320

#5 [↑][↓] 17-09-2019 18:12:01

Re : [Réel] Questions sur le retrofit des sharklets sur A320

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