Jettison — until end of turn, the firepower of all Gliders you control is increased by 1.
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Explained
Plating 1802.6
Damage goes to its plating before its hull. The plating comes back in full at the end of every turn, yours and your opponent's; damage to the hull stays.
Jettison — until end of turn, the firepower of all Gliders you control is increased by 1.802.7
When a Recon puts this card into your scrapyard, you may use this. Not when it is scrapped, dug or destroyed. In the sortie phase it goes into the crossfire first, and it can't be used if the card has left your scrapyard by then (802.7). Every Glider you control gets it, also ones that come on board later this turn (507.3a).