AW | 2017 01 03 18:19 | INDUSTRY

El Airbus Beluga XL ha evolucionado desde los primeros diseños presentados hasta el modelo de producción. Ahora Airbus ha presentado algunos de esos cambios

Las pruebas en túneles de viento de cualquier nuevo modelo suelen llevar a pequeñas variaciones en el diseño original efectuado por los ingenieros aeronáuticos. Algunas veces se trata de grandes cambios, y en otras de pequeños detalles.

En el caso del Airbus A330 Beluga XL, estas pruebas han debido señalar problemas de estabilidad longitudinal del avión, dado que Airbus acaba de anunciar cambios en la sección de cola del avión.

Airbus ha introducido una serie de cambios en el diseño del fuselaje trasero del Beluga XL para mejorar la estabilidad y el control en caso de fallo de un motor

Los dibujos originales de Airbus cuando anunció el lanzamiento del programa mostraban un estabilizador vertical parecido al usado por Boeing en el B-747 Dreamlifter. Es decir, básicamente el del A330 en este caso sin modificar.

Ahora, Guillaume Pages, jefe del equipo de diseño de los Beluga XL y Olivier Maillard, responsable del equipo del fuselaje trasero y aleta dorsal, han reconocido que la necesidad de lograr la estabilidad les han obligado a hacer cambios en esta zona del avión.  

Airbus redesigns the new Beluga XL

The Beluga XL Airbus has evolved from the first designs presented to the production model. Airbus has now presented some of those changes

Testing in wind tunnels of any new model often leads to small variations in the original design made by aeronautical engineers. Sometimes it is a question of great changes, and in others of small details.

In the case of the Airbus A330 Beluga XL, these tests have had to point out problems of longitudinal stability of the airplane, since Airbus just announced changes in the tail section of the airplane.

Original Airbus drawings when it announced the launch of the program showed a vertical stabilizer similar to that used by Boeing in the B-747 Dreamlifter. That is, basically the A330 in this case unchanged.

Now, Guillaume Pages, head of the Beluga XL design team and Olivier Maillard, responsible for the rear fuselage and dorsal fin team, have recognized that the need to achieve stability has forced them to make changes in this area of the aircraft.

In the case of the vertical stabilizer, a dorsal fin similar to that used in the original Beluga has been added. In this the fin is triangular, whereas in the Beluga XL, as you can see in the new images, it is bigger and of trapezoidal form. In the case of the Beluga this fin is one piece, while for the Beluga XL it will consist of three. But in addition the design team has had to add a pair of ventral fins.

Changes have also been made in the fins at the ends of the horizontal stabilizer and in this. In the case of the stabilizer they have had to add two meters to the wingspan (one in each stabilizer) and the design of the fins has been changed. These, in the original drawing were extended below the stabilizers almost like the winglets of the Boeing 737 MAX (although in vertical); And now are almost identical to the Beluga, although the new design is one meter taller. These fins have as their main mission to help the lateral contractility in case of failure of an engine. A\W

 

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SOURCE: Fly-news.es
DBk: Photographic © Fly-news.es / Elcorreo.com / innamag.com / Airbus.com
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