Products

Variable Pitch and Constant Speed Propellers

Electrically or hydraulically controlled, in configurations from 2 to 5 blades, tractor or pusher, for applications up to 2000 HP or SHP.

We manufacture several models of variable pitch propellers with outstanding safety factors, electrically or hydraulically controlled, in configurations from 2 to 5 blades, tractor or pusher. Applications range from 60/200 HP, direct drive or geared, up to 2000 HP or SHP. Available in diameters from 1.60 m to 4 metres, to be installed on powerplants including piston engines, hybrid-electric systems and turbines.

Green and white low-wing aircraft on a grass airfield with the cowling removed, showing the engine and a green two-blade propeller with its pitch-change unit — Our GT2V14 hydraulic propeller on a Rotax 100 HP RV-4, probably one of the earliest Rotax/RV-4 variable-pitch combinations in the world. Outstanding performance from reduced weight and a highly efficient propeller.

Blue three-blade propeller with red and white tips and a red hub, mounted on a stand in the workshop — A custom three-blade hydraulic pusher propeller for the Rotax 915 iS, installed on an experimental aircraft.

White low-wing aircraft on a grass airfield with a white spinner and a dark blue propeller blade with white stripes — On-wing blade removal made easy: our GTV38-177 hydraulic propeller on a Rotax 912 iS (100 HP) LSA.

Front view of a white low-wing aircraft on the grass with a white spinner and a white two-blade propeller with yellow and red tips — Custom electric variable-pitch prop for a 100 HP Rotax on a Sonex kit aircraft, tailored to its limited diameter and ground clearance.

Front view of a white high-wing aircraft on a grass airfield with a white two-blade propeller with yellow and red tips — Our upgrade kit for the Rotax 100 HP-powered Tecnam P2008: electric variable-pitch propeller with V14 blades, spacer, carbon spinner and electronic governor.

Front view of a white low-wing aircraft with the cowling open and a white two-blade propeller with red tips — Our VEB hub with V29 blades, front view during maintenance. The same hub technology is available with either electric or hydraulic pitch control.

Our electric and hydraulic propellers operate on most well-known LSA, experimental, motor-glider and aerobatic aircraft. The more powerful units, mainly hydraulically controlled, equip high-power special projects and warbirds — including iconic types such as the Spitfire, Yak and Me 109, among others.

Larger multi-blade propellers (4, 5 or 6 blades) are mainly used on UAS systems and high-altitude aircraft, adding feathering and reverse capability. We also offer a range of aerobatic, counterweighted propellers for Lycoming, M14, H6, LOM, auto-conversions and similar engines.

All these applications adopt the same natural composite blade technology, combined with artificial composite and metal protection, with several diameters and blade designs available for custom or serial production.

Hubs are designed and manufactured in-house, in alloy or steel, with several types available — some allowing field blade removal, a key benefit for aerobatic and warbird applications.

All our propellers are paired with dedicated composite spinners in various sizes, along with matching installation components.

Yellow and white RV-6 on a grass airfield with a yellow spinner and a yellow three-blade propeller with white tips — Our three-blade hydraulic propeller conversion, suitable for many experimental aircraft, here spotted on a 200 HP RV-6. The kit includes the complete propeller and a dedicated 13-inch carbon spinner.

White low-wing aircraft on a grass airfield with a white spinner and a blue three-blade propeller with red and white tips — A special three-blade hydraulic propeller for the Rotax 915 iS and 916 iS.

Blue and dark red low-wing aircraft in a hangar with a white three-blade propeller with red and white tips — Picture taken during the installation of our GT3-V37 three-blade hydraulic propeller on a new Lycoming O-360-powered sport aircraft.

Orange and white low-wing aircraft with a checkered nose and an open canopy, parked on a grass airfield — Fast Lancair, Lycoming 360 and our very special GT2V38 propeller: only 177 cm of diameter to handle all that power.

Front view of a red and white low-wing aircraft on a dry grass airfield with a white three-blade propeller with red and white tips — An amazing Navion converted to a 320 HP Lycoming engine, fitted with our GT3-V51 220 cm composite propeller and an 18-inch carbon spinner.

Red and white low-wing aircraft on its take-off run with a white spinner and a two-blade propeller with red tips — The Lancair Super Legacy in action, powered by our propeller.

White and red low-wing aircraft on an apron with a black carbon spinner and a white two-blade propeller with red and yellow tips — A two-blade propeller with carbon spinner on a low-wing aircraft.

White and orange RV-8 on the taxiway with an orange spinner and a black two-blade propeller with orange and white tips — A black two-blade propeller on an RV-8.

Front view of a red and white low-wing aircraft on a grass airfield with a red spinner and a white two-blade propeller with red tips — A two-blade propeller on a red and white low-wing aircraft.

A black blade with yellow tips.

Five finished propeller blades with metal leading-edge guards on a workshop table, two black with orange and white tips and three white with dark red tips — Finished blades with leading-edge protection.

Grey alloy variable pitch propeller hub with blade sockets and a central pitch-change fitting — A variable pitch hub with its pitch-change fitting.

Three grey alloy propeller hubs lined up on a workshop bench — Hubs designed and manufactured in-house.

Variable pitch propeller with white blades and red tips mounted upright on a stand in the workshop — A variable pitch propeller on the workshop stand.

Electric pitch-change unit with a brass slip ring behind a white spinner, installed on an aircraft — Electric pitch-change unit installed on the aircraft.

Close-up of an electric pitch-change unit and its brass slip ring behind a white spinner — Close-up of the electric pitch-change unit.

Silver three-blade propeller with a blue spinner fitted to an aircraft under assembly in a workshop, with the cowling removed — Our three-blade variable-pitch pusher propeller on a diesel engine. Wood-composite construction is still the best solution for damping diesel engine pulses.

Red low-wing aircraft on stands in a hangar with the cowling removed, a red spinner and a grey two-blade propeller with orange tips — Spotted: one of our complete conversion kits for the Falco, featuring a 72- or 74-inch propeller (on customer request) and a sleek 14-inch carbon spinner.

White low-wing aircraft on an apron with the cowling removed and a two-blade propeller with red and white stripes — Our electric variable-pitch propeller, designed specifically for the Tecnam P2002 Sierra conversion kit: from fixed-pitch or ground-adjustable to constant-speed. Shown here with a special paint scheme.

Front view of a white low-wing aircraft in a hangar with the cowling removed and a white two-blade propeller with green, white and red tips — Our Falco propeller upgrade kit, for both Sequoia and Laverda versions, features a sharp-design 14-inch carbon spinner and two blade options, V29 and V51, using the same wood-composite technology with metal-protected leading edges.