The Best Places to Buy ground adjustable pitch propeller Online and In-Store

01, Sep. 2025

 

LEAF GSC Propellers - Advanced Powerplant Solutions

GSC Tech Series Ground Adjustable Wood Blades

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GSC Systems () Ltd. manufactures wooden propellers for ultralight planes, powered parachutes and powered paragliders using ROTAX® and other engines. Made of the best quality Eastern Maple hardwood, they are available in fixed-pitch, ground adjustable 2 and 3 blade, 2 blade mechanical in-flight adjustable and for the PPG market. Tech II (two blade) and Tech III (three blade) will replace all single piece two blade wooden props using the 75mm ROTAX® bolt. Includes a CNC machined aluminum hub (-T6), multi-laminated hardwood blades with composite encapsulated root, 8mm drive pins, AN assembly hardware and instructions. For larger horsepower engines offers a narrow tip prop. Increases the top end speed by 3 to 5 MPH, yet, the climb rate remains the same. Propellers are Non-Returnable. Some Advantages of the Tech II and Tech III Props A precision, high strength, yet simple and attractive hub design. Single blade replacement feature and inlaid Leading Edge (L.E.) available
• Any replacement blades must have the number off the back of the blade being replaced
• Hub thickness: 2-1/4”
• 1/4” cover washer must be used

KievProp America: Ultralight,Light Sport Aircraft,UAV | United States

The KievProp is designed to be installed on aircraft with engines that incorporate a gearbox or a belt drive reduction unit. This is to slow the rpm at the propeller and provide engine shock absorption.

GROUND ADJUSTABLE MODELS:

Maximum output power on the driving shaft for 3-blades propellers is up to 145 hp.
Maximum output power on the driving shaft for 4-blades propellers is up to 180 hp.
Maximum output power on the driving shaft for 5-, 6-blades propellers is up to 200 hp.

All blades come standard with brass leading-edge protection to extend the life of the blades by reducing or eliminating the abrasive effects of soil particles and the corrosive and wear effects of water. 

All Propellers are complete and include:
- Hub
- Blades
- Protractor (Pitch adjustment tool)
- Attachment Hardware

- Blade Covers

- Installation Manual/Logbook

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You will get efficient and thoughtful service from Rayi.

Available options:

- Blade covers

- 9" Spinner / Pre-cut and ready to install Choice of Black or White
- Spacers,  15 mm (0.6"), 30 mm (1.2"), 40mm (1.55"), 57 mm (2.25") or 80mm (3.1").

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IN-FLIGHT ADJUSTABLE:


Constant Speed hydraulic or electric drive with a diameter of 1.65, 1.73, 1.82 and 1.92 m of the right direction of rotation and with a diameter of 1,73 and 1.82 m of the left direction of rotation.

The In-Flight Adjustable (IFA) propellers are of variable pitch with an electric drive and are intended for installation on aircraft with the Rotax 912 or 914 carbureted engines with a gearbox inclusive with the hollow output shaft and a gear ratio of either 2.43:1 or 2.273:1.

The electric drive is adapted for constant speed electronic regulators such as the FlyBox PR1-P and others.

The hydraulic version of the IFA prop is also designed to work with the Rotax 912 or 914 engines and is inclusive of all modifications equipped with a suitable hydraulic governor with a "pressure-to-large pitch" algorithm.

All IFA Propellers include:
- Hub and installation kit,
- Blades,
- Blades covers,
- Electric (or hydraulic) drive assembly and its installation kit.

- Installation Manual/Logbook

Available options:
- Spacer (distance separator) of 15 mm (0.6"), 28 mm (1.1") or 45 mm (1.8")
- Device to control propeller pitch manually
- 2-color WHITE/BLACK option for blades
- 9" Spinner / Pre-cut and ready to install Choice of Black or White
- Extension cable connecting the drive

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If you want to learn more, please visit our website ground adjustable pitch propeller.