 |
 |
 |
|
|
|
|
|
|
Models
 80-125 HP VP1 Series
2, 3 & 4 Blade Gear, Belt, and Direct Drive Systems
125-300 HP VP2 Series
2, 3 & 4 Blade
Gear, Belt, and Direct Drive Systems
Ground Adjustable Propeller VP1GA & VP2GA Series
For Experimental and Light Sport Aircraft
The Problem
With the advent of the new FAA approved Light Sport Category of aircraft, and the development of new, lightweight, high performance aircraft engines, there has been no viable hydraulically actuated, bolt-on, cockpit controlled variable pitch/constant speed propeller system. All of the hydraulically controlled propellers on the market necessitate the use of heavy, hollow crankshaft engines, heavy, cumbersome, and expensive propeller governors. These systems are based on 1930’s technology. They are not effective for the new lightweight high performance aircraft that are emerging on the market today.
The Pitch Control Systems (Vari-Prop) Solution
 Pitch control systems has designed, produced, and tested a hydraulically actuated cockpit controlled propeller system. The design maximizes the precise controllability of hydraulic actuation. Hydraulic actuation is extremely tough and reliable while eliminating the problem of exposed electrical brushes, wiring and connectors used on the complicated electrically actuated systems. These systems have been notably problematic and unreliable. Also the Vari-Prop system can be bolted onto any engine that is strong enough to turn it (80 – 300 hp) and utilize the benefits of variable pitch. The Vari-Prop system is extremely simple and easy to install. The cockpit actuator is pilot friendly, intuitive, and simple to use. The Vari-Prop system can be mounted on the large direct drive engines with heavy torsional vibration pulses without wear or damage. The Vari-prop system has the ability to custom design the proper propeller blades for the customer’s application. This will insure that the customer gets the proper blades with the required length and twist. The electrical competitors will not withstand the heavy torsional vibration loads created by the larger direct drive engines. They also try to make one blade fit all applications. If the blades are too long, they shorten the blades thus destroying the twist. The Vari-Prop system is designed to meet or exceed applicable FAA and ASTM construction and safety standards. The Vari-Prop system is designed for safety, high performance, reliable and maintenance free operation. Categorically the Vari-Prop system is the lightest weight unit on the market
Benefits
 Customer: The customer will have a propeller system that will enhance the safety of his aircraft through enhanced performance. The customer will also get a totally reliable, safe, maintenance free, easy to use and affordable propeller system.
Industry: The industry will benefit from a complete propeller system that will enhance the innovation of future designs for many year to come.
Highlights
• Screwdriver Pitch Adjustment
• Bolt on Installation
• Direct Drive & Geared Engines
• 2,3 and 4 bladed configurations
• Exceeds FAA Testing/Safety standards
• 2 Models: 80-140 HP; 140-300 HP
• Custom designed blades for your application
• Complete cockpit control
• Enhanced aircraft performance
• Unique exclusive patented precision hydraulic activation system
• Light Weight
• No hollow crankshaft requirement—bolts on to any engine in 80 to 300 HP class
• Blades and Flange custom built for your aircraft
• Featherable
• Recommended 1000 hr TBO
Safety
• Documented Testing—exceeds FAA Standards
• Fail Safe System, Propeller reverts to climb pitch in event of any malfunction
• Constructed and Assembled IAW AC 43.13-1B
• Military Spec Nonflammable Hydraulic Fluid
|
|
|
|
|
|
|
