Suspension for gliders/sailplanes

Suspension for gliders with protection against load lowering and twisting

Gliding - leisure activity and sport at the same time

Segelfliegen in Deutschland

The fascination for this leisure sport remains unbroken despite the high financial outlay involved. The challenge of gliding lies in the art of covering long distances by skillfully exploiting the thermals - without an engine.

Storage of gliders

In contrast to commercial aviation, where aircraft have to be permanently in the air to be economically viable, gliders are taken out of the hangar when the weather and thermals are good. Commercial airplanes are usually parked outside overnight. Gliders should ideally be stored in locked hangars, also to prevent vandalism. Or they can be dismantled on site and taken to an airfield in a transport trailer. The gliders are designed in such a way that they can be disassembled into a few individual parts such as wings, fuselage and tailplane in just a few minutes. So if you have space at home, you can dismantle your glider and store it safely on your own premises. Where this is not possible, there are hangars in which gliders that have not been dismantled can be stored. However, the dimensions of a glider require a lot of space in the hangar. A standard class single-seater, for example, has a wingspan of 15 meters (49.21 ft) and a fuselage length of 6.5 meters (21.33 ft). For two-seaters, the wingspan is already around 20 meters (65.62 ft) and the fuselage length is around 7.5 meters (24.61 ft). In other words, they are not small aircraft that you can just put in a corner. In addition, modern gliders today are made almost exclusively from high-quality plastics such as carbon fiber and glass fiber composites. The fuselage and wings are made entirely of GRP or CRP. This is why the prices for gliders start at 70,000 euros (approximately 75,000 USD) and go up to six-figure sums. It should therefore be avoided at all costs to hit anything with the gliders when parking them in and out of the hangar. When building hangars, clubs must of course also pay attention to the costs, which is why the space under the hangar roof is now often used to accommodate additional gliders in addition to the ground parking spaces.

Suspension for gliders in a hangar

In 2022, Flugsport-Club Schwandorf built a new hangar to house the gliders of its club members. From the outset, the hangar's utilization concept provided for the suspension of individual gliders below the hangar ceiling on a monorail. This allows the flying club to park four more gliders under the hangar roof in addition to the gliders parked on the hangar floor.

The customer's specifications included, in particular, compliance with all safety and insurance requirements as well as various customer-specific requests. The relatively low trolley runway height of 3,850 mm (12.63 ft) combined with the desire to achieve a clearance height of 2 m (6.56 ft) posed particular challenges. Another point was the different types of aircraft, which have different spans and centers of gravity depending on their equipment, which meant that the adjustment options for the load beams were of great importance. In addition to its own 400-volt (V) power supply, each hoist is also equipped with a further 230-volt (V) supply, which enables the aircraft batteries to be charged even when the crane systems are switched off. In addition to a normal lifting process in crane operation using load handling equipment, this project also required a safety solution to prevent both the lowering of the load (of the glider) and the rotation of the gliders in their final position. In the end, the customer received a complete solution including installation.

Aufhängung für Segelflugzeuge in einem Hangar
Aufhängung für Segelflugzeuge in einem Hangar
Aufhängung für Segelflugzeuge in einem Hangar
Aufhängung für Segelflugzeuge in einem Hangar
Aufhängung für Segelflugzeuge in einem Hangar
Aufhängung für Segelflugzeuge in einem Hangar

FAQ: Suspension for gliders

How is damage to the glider prevented during lifting and lowering?

The lifting beam, which is controlled by an electric chain hoist, is equipped with four textile straps, which are fitted with textile lifting straps including protective hoses at the end via shackles. These are looped around the fuselage before and after the wings. In addition, two support wheels are temporarily fitted to the wings of the gliders during lowering to prevent the wings from coming into contact with the ground.

Does the glider have to be completely in the hangar in order to be lifted?

No. The monorail crane runway runs centrally along the entire length of the hangar and 3.5 meters (11.48 ft) on each side into the outside area. Accordingly, the gliders are always driven into the outside area by means of a trolley drive and lowered there or picked up again after the flight.

How is it ensured that the aircraft remains level, does not twist or lower itself?

The lifting beam is equipped with an adjustment mechanism that can be used to set the respective center of gravity of each aircraft type. This ensures that different types of aircraft can always be adjusted so that the crossbars do not have an angle of inclination of more than 6° when raised. To additionally counteract the possible effects of gusts of wind in the hangar, the trusses are lifted into specially designed safety frames, which also prevent the aircraft from tilting or twisting.

How much does such a complete suspension solution cost?

There is no general answer to this question. Every hangar has different dimensions. Therefore, an on-site inspection is absolutely necessary before submitting an offer.