Our dual-blade props are engineered and manufactured using the fundamentals of aerodynamics and state-of-the-art proprietary technology. The advanced curvature of the prop -- forward sweeping tips -- makes for a tighter, more uniform air cone which facilitates aiming, allows the fan to be placed farther away from the target, and pushes more air directly at the target instead of around it. VENTRY Fans are frequently tested against higher hp competitors, and are chosen again and again after revealing higher hp to be unnecessary. [Click here for testimonials!]

Blades

Do not fall for the “more is better” fallacy of multiple-blade props. Multiple blades stir the air rather than push it, wasting energy in the form of noise. This is called “form drag” or “eddy making drag” and is due to multiple tips and greater surface area.

TRUE STORY: We once had a fire department call us and complain that their VENTRY Fan was not working very well. Why did they think that? The VENTRY Fan was not making “enough” noise! They just assumed that to be effective, fans also had to be painfully loud. Nope.

Composition

VENTRY Safety Props are Kevlar and fiberglass composites with a wooden core manufactured at our facility. Safety Propellers are accepting of a tremendous amount of use and abuse, yet designed for controlled disintegration when safety warrants, without the release of high energy projectiles.

When $#!+ hits the fan, it better be a VENTRY!

As the broken prop we bring to tradeshows illustrates, if something goes very wrong (and it sometimes does!), VENTRY Fans are fail-safe! A pike pole was shoved through the guard, hitting the propeller at left. As it is designed to do, the affected areas of the propeller disintegrate into low-energy toothpicks. No shrapnel. No expensive engine damage. No firefighter injuries! We have had numerous calls from startled but safe firefighters thanking us for the fail-safe design of VENTRY Fan propellers.