Advanced Propeller Systems for Modern Aviation
Whether hydraulic, electric or ground-adjustable, each system is engineered to meet strict aviation standards and to support smooth, responsive performance from takeoff to landing.
Hydraulically controlled constant speed propeller
Our hydraulic constant speed propeller installations are certified as 2-, 3-, 4- and 5-blade models for engines producing up to 867 HP, that have an hydraulic oil supply to the propeller controlled by a governor.
Some of our hydraulic propellers are optionally available with feathering and /or reverse system and can be equipped with electric or alcohol de-ice boots.
The single piece hub is made from forged or solid aerospace aluminum alloy or high-strength steel. It is corrosion protected and the hub's outside can be additionally painted for sea applications.
The blade bearings are special design ball bearings, where the balls act as split retainers for holding the blades into the hub, which creates an increased safety factor against blade loss.
The propeller construction has the simplest possible and light-weight design without any unnecessary part.
All weights required for static propeller balancing are installed on the rear or front spinner bulkhead.
Presently our blades are built in aluminum alloy design, by using high-strength aluminum alloy. The blades are corrosion protected and can be equipped with electric or alcohol de-ice boots.
A steel blade bushing is installed to the blade root by using special design thread for propeller blades.
The pitch change of the blade is enabled by an excenter pin installed in the blade shank or the blade bushing.
Some of our propellers for aerobatic aircrafts or propellers built with feathering capability are equipped with counterweights, which are installed on the blade bushing.
The spinner dome is a single piece part made from fiber reinforced composite (Kevlar®) or high-strength aluminum alloy.
It is extremely crack resistant as well as very light weighted.
The servo pressure necessary for changing pitch is generated by a gear pump located inside the propeller governor.
The propeller system is single or double acting.
An unfeathering accumulator, which is directly connected to the propeller governor, is optionally available for some of our Feathering Propellers.
| Model No. | Number of blades | Model. No. | Number of blades |
|---|---|---|---|
| V500 | 2-blade | AV-804 | 4-blade |
| V520 | 2-blade | AV-844 | 4-blade |
| AV-842 | 2-blade | V510 | 5-blade |
| V503 | 2-blade automatic, self contained | AV-725 | 5-blade |
| V506 | 3-blade | - | - |
| V508 | 3-blade | - | - |
| AV-723 | 3-blade | - | - |
| AV-803 | 3-blade | - | - |
