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LEGO®42057Technic™Technic™

Ultralight Helicopter

Average rating4.7out of 5 stars
Warning!
Choking Hazard.
Small parts.

Retired product

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8-14Ages
199Pieces
420574205742057Item

Enjoy aerial adventures with this aerodynamic one-man helicopter, featuring spinning main and tail rotors, controllable tail rudder, detailed engine with moving pistons, open cockpit with detailed seat, and a white, red and black color scheme with a selection of stickers for an authentic helicopter look. This robust 2-in-1 LEGO® Technic model can be rebuilt to create an Experimental Aircraft, providing a double build-and-play experience. Both models can be built by following the free interactive, 3D digital LEGO Building Instructions app.

  • Features a high-tech aerodynamic design, open cockpit with detailed seat, spinning main and tail rotors, controllable tail rudder, and a detailed engine with moving pistons.
  • Check out the white, red and black color scheme with cool stickers.
  • Spin the gearwheel and see the rotors and engine spring to life.
  • Move the joystick to operate the tail rudder.
  • A uniquely decorated LEGO® Technic 40th Anniversary brick is included with this model.
  • This LEGO® Technic model is designed to provide an immersive and rewarding building experience.
  • This set offers an age-appropriate build-and-play experience for ages 8-14.
  • Interactive, 3D digital LEGO® Building Instructions app available online for both A and B models. Ask your parents’ permission.
  • 2-in-1 model: rebuilds into an Experimental Aircraft.
  • Ultralight Helicopter measures over 4” (12cm) high, 9” (25cm) long and 7” (18cm) wide.
  • Experimental Aircraft measures over 3” (9cm) high, 7” (18cm) long and 7” (19cm) wide.
Building Instructions
Ultralight Helicopter
  • Free standard 1 to 4 business day delivery on all merchandise orders over $149!
  • Express delivery available at checkout.
  • Custom parts orders are sent separately from merchandise and take additional time to process and deliver.
  • Unopened merchandise may be returned for a full refund within 180 days of receipt of your order.
Some exclusions apply. Visit our Deliveries and Returns page for more information.
Overall RatingAverage rating4.7out of 5 stars
(13 Reviews)
100% would recommend this product.

Rating

Overall Experience

Play ExperienceAverage rating4.5out of 5 stars
Level of DifficultyAverage rating2.5out of 5 stars
Value for MoneyAverage rating4.8out of 5 stars
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Reviews

  • September 22nd, 2017
    Average rating5out of 5 stars
    New at Lego
    | 25-34
    I would recommend this to a friend!
    Purchased for: Self
    Received this as a birthday gift, and wow, was I impressed with Lego Technic® ?! I Know Lego from when I was a kid, but I never knew Lego grew into such an awesome company. Immediate new hobby for me :-) It was so fun to build this copter and I really took my time to savour every moment. I was left with about 5 parts which I assume is spare parts as I went through the book again and closely examined the picture on the box, but I then just used the spares and placed them into other areas (LEGO®, CAN YOU SPOT WHERE I PUT THEM?? :-) I just became a Lego TECHNIC fan for life!! Now to choose which one to build next....
    Play ExperienceAverage rating5out of 5 stars
    Level of DifficultyAverage rating2out of 5 stars
    Value for MoneyAverage rating5out of 5 stars
    Build Time: 4 hrs
    Building Experience: Novice LEGO builder
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    55Ultralight Helicopter
  • January 15th, 2017
    Average rating5out of 5 stars
    Lego Technic 42057
    | 45-54
    I would recommend this to a friend!
    Purchased for: Self
    The moment I saw this I knew I had to get one. The helicopter and aircraft design appealed to me as I love aircraft, space ships, and rockets. Opted to build the Experimental Aircraft and enjoyed the building experience. I expect to get some playtime with it and my daughter who is also a Lego Fan. The moving parts (pistons and propeller) are a cool addition, although it would have been great to have them move while you roll it. The color combination is also very appealing. Very sturdy, can take some rough handling, and rolls easy on any level surface. A stand for this kit would also be great for those who build them and have their Lego kits as display models. Highly recommend you get one. It is a great kit for the price.
    Play ExperienceAverage rating4out of 5 stars
    Level of DifficultyAverage rating3out of 5 stars
    Value for MoneyAverage rating5out of 5 stars
    Build Time: 1 hrs 30 mins
    Building Experience: Novice LEGO builder
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    55Ultralight Helicopter
  • April 11th, 2017
    Average rating5out of 5 stars
    "It Simply Blew Me Away"
    | 25-34
    I would recommend this to a friend!
    Purchased for: Self
    I I built this using the digital building app, which was very fun and unique. There is a lever on the side that rotates the tail fin. There is not a crank to spin the rotor blades. It is operated by rotating the light tan gears on the bottom. I really like this little helicopter. However, I think that some experienced Technic builders may dislike the abundant use of stickers. I personally have no problem with them because without them the build would look very plain. I really liked the 40th anniversary brick, and to my delight it was a printed piece. I think that it is one of the better small Technic sets of year.
    Play ExperienceAverage rating5out of 5 stars
    Value for MoneyAverage rating5out of 5 stars
    Build Time: 30 mins
    Building Experience: Expert LEGO builder
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    55Ultralight Helicopter
  • June 13th, 2018
    Average rating5out of 5 stars
    Very fun, fast and ingenious
    | 45-54
    I would recommend this to a friend!
    Purchased for: Self
    I purchased two copies of this to put the A and B builds on a shelf together. Both are really quick builds and look good. It took an hour to build both of them. The rotors are clever and I thought they would be tied to the wheel, but this is not how it is in the original builds. The designer did a good job on both designs, they are clever and the A build rudder controls are well done.
    Play ExperienceAverage rating4out of 5 stars
    Level of DifficultyAverage rating2out of 5 stars
    Value for MoneyAverage rating5out of 5 stars
    Build Time: 1 hrs
    Building Experience: Intermediate LEGO builder
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    55Ultralight Helicopter
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