antenna 
Antenna that receives and transmits radio signals to communicate with the control tower or another aircraft.
control stick 
Lever for changing the rotor’s tilt; it is used to steer the helicopter.
landing window 
Window by the pilot’s feet for seeing the ground when landing.
position light 
Light visible from afar that signals the helicopter’s presence.
tail skid 
Support attached to the tail end of the boom that protects it and the anti-torque tail rotor in the event of a landing with the nose up.
flight deck 
Compartment that contains navigation equipment; the pilot operates the helicopter from here.
rotor blade 
Long streamlined part of the main rotor that, depending on its angle, lifts and propels the helicopter.
rotor hub 
Center part of the rotor head that connects the driveshaft to the blades.
drive shaft 
Part driven by the engine that transmits its rotational movement to the hub.
tail boom 
Long part of the helicopter’s frame that contains a propeller shaft and supports the rear rotor, fin and stabilizers.
horizontal stabilizer 
Horizontal wing mounted on the tail boom to stabilize the helicopter’s horizontal movement.
fin 
Fixed vertical part mounted on the tail boom to keep the helicopter flying straight.
anti-torque tail rotor 
Rotor on a horizontal axle that prevents the helicopter from spinning due to the effect of the main rotor.
air inlet 
Opening through which air enters to supply the helicopter’s engine.