'The twin rotor type of this has 2 main rotors going in opposite directions, so it doesn't need a tail rotor'
a helicopter
TRANSPORTATION: The twin rotor type of this has 2 main rotors going in opposite directions, so it doesnt need a tail rotor
The twin rotor type of this has 2 main rotors going in opposite directions, so it doesn't need a tail rotor
The twin rotor type of this has 2 main rotors going in opposite directions, so it doesn't need a tail rotor
TRANSPORTATION
a helicopter
TRANSPORTATION