Dialight has launched the Vigilant LED dual red/white strobe with infrared (IR) obstruction lighting system. The dual IR flash head and systems are approved through Intertek to the FAA AC 150/5345-43G and Engineering Brief No. 67D standards, with the addition of the IR LEDs to the standard red night operation to enhance visibility and safety for pilots, including those who utilize night-vision goggles (NVGs).
The use of NVGs in aviation is growing quickly, especially among military and medical helicopter pilots, for their improved sight distance and clarity in identifying obstacles, terrain and changing weather conditions. Yet, certain NVG filters block out the light produced by red LEDs, making the lights difficult to detect. The Dialight product utilizes IR LEDs in conjunction with red LEDs to optimize visibility of critical obstructions under all conditions.
The IR strobe features IR LEDs (in series with the red LEDs) operating with peak intensity at 850nm to ensure 360 degrees of visibility for the latest generation of NVGs utilizing Class B or C filters. The Dialight dual fixture is fully compliant to the IR intensity and angle standards set by the Finnish Transport Safety Agency, which is widely accepted as the international standard. www.dialight.com