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Elektronische PositinsLichter


ACL - for DG1000/500

With Flarm interface

To see and be seen


In close cooperation with DG-Flugzeugbau,the Thiesen GmbH developed a anticollision light for gliders of the DG1000/500 series.

The ACL could be used as „Stand-Alone“ and also in connection with a Flarm collision alarm unit. In connection with Flarm, the pulse repetition of the light flashes are regulated in dependency of a possible critical situation. Therefor the informations will be read from the Flarm-Interface and depend on these information the pulse repetition will be adapted.

Is Flarm activated, that means GPS-Receiving is on, the pulse of the light flashes will be extended up to approximate 5 seconds to minimize the power input. Due to this the average wattage is only approximate 3,3 watts.

Is the Flarm-Device adjustet to alarm level 1, the iteration time is reduced to approximate 1,5 seconds, at alarm level 2 to approximate 0,8 seconds and at alarm level 3 to approximate 0,4 seconds. Due to this the visibility of the glider will be much better for other traffic participants.

Because of the special optical shape the ACL has a directional characteristic for the light flashes that will bundle the light especially in heading. Thereby it will be ensured that gliders will be recognized excellent. A glider shows its smallest silhouette from the front and is therefore extremely hart to see and thereby appropriate endangered.

The ACL could be ordered direct as a option for new gliders of DG-Flugzeugbau.

A installation kit for retrofitting of existing gliders of the DG1000/500 series is also available at DG-Flugzeugbau.


Technical Specifications

Operating voltage :   10 -17 volts D. C.,
typically: 12.8 - 13.4 volts (on board power supply)
Wattage :   resting state approx. 3,3 watts
alarm level 1 approx. 11 watts
alarm level 2 approx. 20 watts
alarm level 3 approx. 33 watts
Fuse : 5 ampere (fusible cut-out or automatic fuse)
Dimensions :   approx. Ø110 x 15 mm
Bore diameter :   4,5 mm
Weight :   approx. 65 g
Warranty :   5,000 operating hours or max. 3 years


Updated: 16.06.2016 - 16:00