Ultralight Helicopter (42057-1) is a Technic LEGO set released in 2017 with 199 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. This set includes 78 unique part types.
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Building instructions
2 official booklets — read on BrickID
Book 1 of 2 · US Letter Book 2 of 2 · US Letter
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Parts in this set
78 parts · page 1 of 2 · updating…
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Hose Rigid 3mm D. 9L / 7.2cm75c09 · ×2 · Black -
Large Figure Wing, Small61800 · ×1 · White -
Propeller 3 Blade 9 Diameter with Pin Hole, Recessed Center15790 · ×1 · Black -
Sticker Sheet for Set 42057-129041 · ×1 · [No Color/Any Color] -
Technic Axle 2 Notched32062 · ×5 · Red -
Technic Axle 34519 · ×4 · Light Bluish Gray -
Technic Axle 3 with Stop24316 · ×1 · Reddish Brown -
Technic Axle 43705 · ×6 · Black -
Technic Axle 4 with Stop87083 · ×1 · Dark Bluish Gray -
Technic Axle 532073 · ×2 · Light Bluish Gray -
Technic Axle 5 with Stop15462 · ×1 · Reddish Brown -
![Technic Axle 5.5 with Stop [Rounded Short End]](https://cdn.rebrickable.com/media/parts/elements/4508553.jpg)
Technic Axle 5.5 with Stop [Rounded Short End]59426 · ×2 · Dark Bluish Gray -
Technic Axle 63706 · ×1 · Black -
Technic Axle 744294 · ×1 · Yellow -
Technic Axle and Pin Connector Angled #132013 · ×2 · White -
Technic Axle and Pin Connector Angled #2 - 180°32034 · ×3 · Black -
Technic Axle and Pin Connector Angled #3 - 157.5°32016 · ×1 · Black -
Technic Axle and Pin Connector Angled #4 - 135°32192 · ×4 · Red -
Technic Axle and Pin Connector Perpendicular6536 · ×6 · White -
Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole32184 · ×2 · Black -
Technic Axle and Pin Connector Perpendicular Double32291 · ×1 · Black -
Technic Axle and Pin Connector Perpendicular Triple63869 · ×1 · Black -
Technic Axle Connector Hub with 3 Axles at 120°57585 · ×1 · Light Bluish Gray -
![Technic Axle Connector Smooth [with x Hole + Orientation]](https://cdn.rebrickable.com/media/parts/elements/4512363.jpg)
Technic Axle Connector Smooth [with x Hole + Orientation]59443 · ×2 · Black -
Technic Axle Connector with Axle Hole32039 · ×3 · Black -
Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle11214 · ×5 · Dark Bluish Gray -
Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle18651 · ×1 · Black -
Technic Axle Pin with Friction Ridges Lengthwise43093 · ×5 · Blue -
Technic Axle Pin without Friction Ridges Lengthwise3749 · ×2 · Tan -
Technic Axle Towball2736 · ×2 · Light Bluish Gray -
Technic Beam 1 x 11 Thick32525 · ×2 · Black -
Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole60483 · ×4 · Black -
Technic Beam 1 x 2 Thin41677 · ×11 · Black -
Technic Beam 1 x 3 Thick32523 · ×2 · White -
Technic Beam 1 x 3 Thick with Black '40 1977 - 2017' and 24 Tooth Gear Print32523pr0001 · ×1 · White -
Technic Beam 1 x 4 Thin with Stud Connector2825 · ×1 · Black -
Technic Beam 1 x 5 Thin32017 · ×1 · Light Bluish Gray -
Technic Beam 1 x 5 Thin with Axle Holes on Ends11478 · ×5 · Black -
Technic Beam 1 x 6 Thin32063 · ×1 · White -
Technic Beam 2 x 4 L-Shape Thick32140 · ×4 · White -
Technic Beam 3 x 3 T-Shape Thick60484 · ×1 · Black -
Technic Beam 3 x 5 L-Shape Thick32526 · ×1 · White -
Technic Bush3713 · ×3 · Light Bluish Gray -
Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced32123b · ×4 · Light Bluish Gray -
Technic Engine Connecting Rod2852 · ×2 · Light Bluish Gray -
Technic Engine Crankshaft2853 · ×2 · Yellow -
Technic Engine Crankshaft Center2854 · ×1 · Tan -
Technic Engine Cylinder without Side Slots, with Bottom Slots2850b · ×2 · Light Bluish Gray