winglet
Drag is a force that acts opposite to the direction of movement of an airplane. Drag is mainly caused by air. The other forces that act on the plane while moving in the air are thrust, lift etc..
Flaps would increase drag increasing your speed will increase it even more
Drag effects paper airplane just as it affects anything else that moves. It is either parasitic or induced on paper airplanes. Drag may reduce a paper airplanes speed and/or range.
the force created by air resistance
drag
The force of an airplane that opposes thrust is called drag. Drag is the resistance force that acts opposite to the direction of motion of the aircraft and is caused by the interaction of the aircraft with the surrounding air.
drag
Lift, Gravity, thrust and drag
The thrust force produced by the airplane's engines must be greater than the drag force acting against it in order to overcome drag and maintain forward motion. This allows the airplane to continue moving through the air and generate lift to stay aloft.
An airplane uses engines to generate thrust, which propels it forward. The engines work to overcome the drag force that resists the airplane's forward motion, allowing it to achieve the necessary airspeed for flight. This is necessary to create the lift that keeps the airplane airborne.
Lift, weight, thrust and drag.