Chapters for your convenience: 00:40 - speed build 05:45 - functions 07:12 - impressions 11:13 - final note Lego Technic 42052 B-model: Tandem Rotor .\rbr\rbrReviews of the official LEGO sets.\rbr\rbrChapters for your convenience: 00:37 - speed build 02:55 - functions 03:50 - impressions 06:18 - final note Lego Technic 42050 B-model: Supercharged .\rbr\rbrThis is an HD video review of the new 2016 LEGO Technic Heavy Lift Helicopter Review, Set 42052.