The Lego set Twin-rotor Helicopter with the set number 42020 is part of the LEGO Technic theme and is recommended for ages 7 - 14. It was released in January 2014. The model has 145 pieces, and we estimate it takes around < 1 hour to build. It was designed by Milan Reindl.50 Brickfact users have this set in their collection.
The set weighs about 0.200 kg. The box measures 6.2 x 5.6 x 2.4 in (15.7 x 14.1 x 6.1 cm). The recommended retail price is £7.99.
The Part-Out-Value (POV) is the sum of the average prices paid on bricklink.com for all parts of this set. It is about £10.08.
Lego 42020 product data
Set Information
Availability
Release
01/2014
Retiring Status
Retired (12/2015)
Price Information
RRP
£7.99
Insiders Points (for purchase at Lego)
64
Part Out Value
£10.08
i
Packaging
Weight
0.200 kg
Packaging dimensions
6.2 x 5.6 x 2.4 in
EAN (GTIN13)
5702015122481
Popularity with Brickfact users
- users have this set
- 50
50 Brickfact users have Twin-rotor Helicopter in their collection.
Based on anonymized Brickfact user collections; shown only for sets with at least 10 users. As of 20 October 2026.
Lego 42020 price trend
Average sale price on secondary marketplaces – not the new price at retailers.
- Current market value
- £11.37
- Growth vs. RRP
- +42.3 % £7.99
- Range
- £10.14 – £20.75
- Average
- £12.63
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Building Instruction for LEGO 42020 Twin-rotor Helicopter
Part Lists for LEGO 42020 Twin-rotor Helicopter
LEGO 42020 Frequently Asked Questions
Is LEGO 42020 still available?
LEGO has retired 42020 Twin-rotor Helicopter, and no retailer in our price comparison currently sells it new. Its market value on secondary marketplaces is £11.37.
