High speed, high pitch, Plastic propellers with 75 mm span (3 inches) are designed for 2-mm shafts of miniature motors. (Most DC motors we offer have a 2-mm shaft and can directly be attached to these propellers.)
High speed propellers come in a set of two propellers (with opposite pitches) and two propeller spinner domes (also known as spinner cones). Since the propellers have two different pitches, one is called positive and the other one is called anti-positive or negative.
Color: Yellow/ Orange
Propellers are used in making air propelled boats and cars and non-flying model airplanes.
If an airplane has two propellers, It is best if one spin clockwise and the other spin counter clockwise in order to cancel each other's torque; however, both must propell air toward the rear of the airplane. That is why one of the propellers mus have an opposite pitch.
Product code/ Model: PROP3, L752O, 2B75MMO