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Why there are two propellers in a helicopter?

 If you are talking about the fans or propellers or blades as you may call, Helicopter has two of them, The one on the top is used to gain height while the rear propeller is used to adjust the direction.

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Dear Student,

@Jerin. Right answer. Keep writing! Your answers are helpful for the users of this community. Thumbs up from the team of experts!

@Olivea, Hope you got the answer given by your friend Jerin.

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thank you:)

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ya mam i got it...nicely...thank u :-)

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thanx :-)

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