We know that the wavy lines on the canopy are detcord, to shatter the glass in case of ejection.
Why are they wavy?
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2$\begingroup$ Perhaps it shatters a larger area per cord? $\endgroup$ – Cpt Reynolds Jan 23 '19 at 16:22
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Possibly to shatter the canopy into smaller fragments. Straight dets might just detach a large proportion, possibly leading to unwanted severe secondary strikes on ejecting aircrew.
