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Thread: ALSF I nonstandard
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Old 5th Aug 2017, 08:58
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TotalBeginner
 
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I'm not sure that I understand the question. ALSF-1 (Approach Lighting with Sequenced Flashers), type 1 denotes that the red supplementary barrettes do not extend to the crossbar. All of the above diagrams are representative of that.
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