How Long Does LEGO® Aerial Defense Unit (8971) Take to Build?

A typical builder finishes LEGO® Aerial Defense Unit (set 8971, 733 pieces) in about 2 hours. Taking it slowly runs closer to 2 hours 40 minutes; building at a fast pace, about 1 hour 30 minutes.

PieceTick estimates build time from piece count, part complexity, the set’s age rating, your experience level, and how you sort pieces. Adjust those on this page for an estimate matched to how you build.