Ultralight Helicopter

42057-1 Technic 2017 199 parts 1.3% Easy

Take to the skies with the Ultralight Helicopter! Enjoy aerial adventures with this aerodynamic one-man helicopter, part of the Technic collection. It features spinning main and tail rotors, a controllable tail rudder, and a detailed engine with moving pistons. The open cockpit includes a detailed seat, all presented in a striking white, red, and black color scheme. A selection of stickers adds to its authentic helicopter look. This robust 2-in-1 LEGO Technic model, set 42057, can be rebuilt to create an Experimental Aircraft, providing a double build-and-play experience.

42057-1

3D build progress

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Parts Inventory

🧱 199 parts
PartQty
Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle

Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle

11214

€0,29
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Technic Beam 1 x 5 Thin with Axle Holes on Ends

Technic Beam 1 x 5 Thin with Axle Holes on Ends

11478

€0,25
View
Technic Panel Fairing #21 5L Small Smooth, Side B

Technic Panel Fairing #21 5L Small Smooth, Side B

11946

€0,38
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Technic Panel Fairing #22 5L Small Smooth, Side A

Technic Panel Fairing #22 5L Small Smooth, Side A

11947

€0,38
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Wheel 18 x 8 with Fake Bolts and Deep Spokes with Inner Ring

Wheel 18 x 8 with Fake Bolts and Deep Spokes with Inner Ring

13971

€0,21
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Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise

Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise

15100

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Technic Axle 5 with Stop

Technic Axle 5 with Stop

15462

€0,11
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Propeller 3 Blade 9 Diameter with Pin Hole, Recessed Center

Propeller 3 Blade 9 Diameter with Pin Hole, Recessed Center

15790

€0,53
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Technic Steering Wheel Pilot's Yoke [Hollow Stud, Axle Hole with + Opening]

Technic Steering Wheel Pilot's Yoke [Hollow Stud, Axle Hole with + Opening]

18352

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Technic Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening]

Technic Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening]

18575

€0,36
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Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle

Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle

18651

€0,08
View
Technic Pin Connector Round 1L [Beam]

Technic Pin Connector Round 1L [Beam]

18654

€0,05
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Repairability

Can you fix Ultralight Helicopter if a piece goes missing?

1.3%Low repair risk
easy to fixguard this box

1 of the 78 part+color combinations in this set appear in 3 or fewer sets ever made. Lose one of those and a replacement is very hard to find.

Theme average

6.5%

All sets

6.7%

Hardest to replace

Sticker Sheet for Set 42057-1 · Unknown · only this set
How we calculate this →

More Technic sets

Browse more LEGO Technic sets related to Ultralight Helicopter, including models from 2017 and other sets in the same theme.

View all Technic sets →

Build DNA

Parts inventory insights for Ultralight Helicopter

199 pieces puts this build -70% against the average Technic set and -48% against the average 2017 release.

LEGO Technic

Vs average Technic set

-70%-455 parts
This set199
Average set654

Average Technic set: 654 pieces across 453 other sets.

Vs average 2017 set

-48%-186 parts
This set199
Average set385

Average 2017 set: 385 pieces across 450 other sets.

Color profile

10different colors

Dominant color

Black

Black13x
42%
Dark Bluish Gray7x
23%
White6x
19%
Tan3x
10%

Unique parts

0.4 pieces per unique type

78

Repeat factor

Average pieces per unique type.

1x

Most used part

Technic Pin with Friction Ridges Lengthwise and Center Slots

Technic Pin with Friction Ridges Lengthwise and Center Slots15x

Results are based on official LEGO part inventories. Accuracy improves as you confirm set completeness.

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