The Hangar can take limited damage. Keep it safe.
― In-game description
"Defend the Hangar" is the fourth Master Thief Challenge in "Flight of Fancy" of Sly 3: Honor Among Thieves. It is a variation of the last part of "Cooper Hangar Defense," where Penelope must use her RC chopper to defend the Cooper hangar from the Black Baron's guards. In this challenge, the hangar only has half the regular amount of health.
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Sly 3 Honor Among Thieves - Master Thief Challenge - Defend the Hangar