BROWSE CATEGORIES

Aircraft Lifting Bags

Supplied by Vetter.

CONTOUR MATCHING USING VACUUM CHAMBERS

The increasing number of new aircraft fuselage and wing shaped make contour matching imperative in the field of aircraft recovery using pneumatic lifting bags. It was for this reason that Vetter GmbH further developed a field-proven recovery system in cooperation with the authorities at Frankfurt Airport which offers the following advantages.

- low pressure point loading on sensitive aircraft parts
- meets the specifications of the aircraft manufacturers
- high degree of stability
- high safety standard
- individual contour matching

Stabilization is made in a number of steps:

Step 1

In the first step, a pneumatic aircraft lifting bag is positioned under the wings of the aircraft to be recovered.

Step 2

In the second step, vacuum bags are positioned on the lifting bag facing the fuselage.
These vacuum bags are similar to vacuum mattresses used by rescue services and exactly match to the contours.
When vacuum is then produced in the bags they will shape themselves to the contours and stabilize the aircraft.

Step 3

In the third step large intermediate spaced are filled out with individual chamber bags, with dimensions of 50 x 230 cm (20 x 91 inch) and 100 x 230 cm (40 x 91 inch), which are blown up to the full operating pressure.

Step 4

In the fourth and last step before the lifting procedure starts, the smaller intermediate spaces can be filled with filling sacks having dimensions of 40 x 60 cm (16 x 24 inch).
These sacks let the air through enabling contour matching and supporting of antennas, spindle drives and other protruding parts.

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