![aircraft design - Why do smaller RC helicopters have visible twist in their rotors, and slightly bigger ones do not? - Aviation Stack Exchange aircraft design - Why do smaller RC helicopters have visible twist in their rotors, and slightly bigger ones do not? - Aviation Stack Exchange](https://i.stack.imgur.com/b5bAy.png)
aircraft design - Why do smaller RC helicopters have visible twist in their rotors, and slightly bigger ones do not? - Aviation Stack Exchange
![aircraft design - Why do smaller RC helicopters have visible twist in their rotors, and slightly bigger ones do not? - Aviation Stack Exchange aircraft design - Why do smaller RC helicopters have visible twist in their rotors, and slightly bigger ones do not? - Aviation Stack Exchange](https://i.stack.imgur.com/HlaVn.png)
aircraft design - Why do smaller RC helicopters have visible twist in their rotors, and slightly bigger ones do not? - Aviation Stack Exchange
World's most expensive RC Helicopter 'TechARRIVAL' | World's most expensive RC Helicopter 'TechARRIVAL' | By TOYS for BOYSFacebook
![Hi, the photos are all the pieces i've found of my cousin decade old rc helicopter from art tech. apart from the rc control, are there any other pieces i need to Hi, the photos are all the pieces i've found of my cousin decade old rc helicopter from art tech. apart from the rc control, are there any other pieces i need to](https://preview.redd.it/hi-the-photos-are-all-the-pieces-ive-found-of-my-cousin-v0-dzl4vea25wk91.jpg?width=640&crop=smart&auto=webp&s=edcbb9137e858ef688c70e5ab4ab587ca972f97b)