Standard (5″ blade chord width) propellers are available in both fixed pitch and adjustable pitch designs. Propeller diameters range from 18” to 78”, and in 3, 4, 6, and 8 blade configurations with pitches offered from 24 degrees through 40 degrees in 2 degree increments. The Series 5 propellers feature permanent molded blades and are designed for installation with taper lock bushings. The 5 inch chord width blades are available in four designs. Bailsco’s original design is the “S” blade which has a constant twist of 18 degrees at 20”. Our “A” blade has two separate twists and is designed for use for propellers up to 42 inches in diameter. The “B” blade has three separate twists and is designed for propellers over 48 inches in diameter. The “R” blade is our reversible blade and is used in applications where air movement needs to be forward or reverse, in either direction (supply or exhaust). This blade design is “truly” reversible offering identical airfoils on both leading and trailing edges. This design is very popular in the wood processing dry kiln industry.