How many pieces does the LEGO Twin-rotor Helicopter (42020-1) have?

The LEGO Twin-rotor Helicopter set (42020-1) contains 145 pieces. It was released in 2014 as part of the LEGO Technic theme.

How can I find missing parts for LEGO set 42020-1?

On BrickMissing you can check which parts from the LEGO Twin-rotor Helicopter (42020-1) you already own. Add your LEGO collection and we'll show exactly which of the 145 pieces you're missing and which you already have.

Can I build the LEGO Twin-rotor Helicopter with parts I already have?

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 145 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO Twin-rotor Helicopter from?

The LEGO Twin-rotor Helicopter (42020-1) belongs to the LEGO Technic theme. You can browse all Technic sets on BrickMissing to find more sets from this theme.

Twin-rotor Helicopter

42020-1 Technic 2014 145 parts 2.1% catalog rarity Easy

The LEGO Technic 42020-1 Twin-rotor Helicopter explores core mechanical principles within its 2014 Technic design. This model showcases linked spinning rotors, precisely connected by gear wheels, ensuring both rotors spin together during any operation. An opening cargo door supports rescue scenarios, while a turning front wheel enables ground maneuvering for realistic play. The helicopter features a clear rescue-theme design, reflected in its overall styling. As a versatile 2-in-1 model, it rebuilds into a single-rotor helicopter, providing an alternate construction. The finished Twin-rotor Helicopter measures 22 cm long, suitable for display alongside other Technic models.

42020-1

3D build progress

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Parts Inventory

🧱 145 parts

Showing the first 12 rows of the parts list (145 pieces in total). The full list loads automatically.

Color	Qty	LEGO price each
Unknown	1×	Check price → View
Black	5×	Check price → View
Light Bluish Gray	2×	€0,21 View at LEGO → View
Tan	4×	€0,08 View at LEGO → View
Light Bluish Gray	5×	Check price → View
Red	5×	€0,07 View at LEGO → View
Light Bluish Gray	3×	€0,11 View at LEGO → View
Light Bluish Gray	4×	€0,04 View at LEGO → View
Black	4×	€0,15 View at LEGO → View
Black	4×	€0,12 View at LEGO → View
Black	2×	€0,33 View at LEGO → View
Black	2×	€0,18 View at LEGO → View