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.
Ultralight Helicopter is rated
4.6 out of
Rated 5 out of
Very fun, fast and ingeniousI 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.
Date published: 2018-06-13
Rated 4 out of
Main Build is Great, But The Second One Wrecks ItThis was my first ever technic set, and I was definitely impressed. Of course, I built the primary build first, so I’ll start with that:
Primary build: 9/10
This build used up all the pieces included, so it did take
longer to build than a typical $25 set. Still, the final product was mind blowing. Just by turning a gear at the base, the rotors would both turn at the same time. That completely steals the show from the other parts of the build. Still, the build is very display able and looks great. The only downside is the feature where you could move the rudder/vertical stabilizer from side to side. It gets stuck sometimes and to me it feels unneeded.
Secondary build: 6/10
I built this one quite sometime after building the primary build since I was so happy with it. But when this one was built, I was disappointed. Over 1/3 of the pieces hadn’t been used, and the main feature wasn’t nearly as exciting as the primary build. That isn’t it, though. The shaping is a bit weird looking especially because of the ackwardly undersized wings. I understand that Lego was trying a new design and shape, but if you ask me, it just doesn’t work out. In fact, compared to the primary build, it looked so lame and ackward, I rebuilt the primary build just the next day.
I feel this set had a strong primary build, but when you came to the secondary build, it just wrecks the set. They could have just left the secondary build out, or tried to use up more pieces for it. On top of that, the set used way too many stickers and the price to part ratio is just okay. Still, I would recommend it to anybody who wants a challenging but rewarding build.
Date published: 2018-07-27
Rated 5 out of
"It Simply Blew Me Away"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.
Date published: 2017-04-11
Rated 5 out of
Lego Technic 42057The 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.