LEGO Yellow Propeller 2 Blade 5.5 Diameter has been used in at least 38 LEGO sets over the past 39 years, since it was first used in 1985. You can also find this part in at least 10 other colours. It has a design ID of 4745 which can usually be found molded into the bottom of the part.
Composite 5-Blade Propellers maximize thrust without increasing noise
LEGO 4215 Starter Set 300 Set Parts Inventory and Instructions - LEGO Reference Guide
LEGO propeller - yellow - Extra Extra Bricks
LEGO® 52 6074928 - 6176584 - 6194508 - ToyPro
Argos Superstore 1987 Autumn/Winter by Retromash - Issuu
LEGO Propeller 2 Blade 5.5 Diameter (4745) Comes In
Lego (1) Yellow 2 Blade Propeller, 4745 (028-203)
LEGO Propeller 2 Blade 5.5 Diameter (4745)
Peeron: Helicopter (#390-1)
LEGO Propeller 4 Blade 5 Diameter with Rotor Holder (3461)
LEGO Vrtule Saviory Bricks
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