E-PROPS HI-TECH CARBON PROPELLERS


DONNEES

 

Français / English

 

 

TECHNICAL CHARACTERISTICS

 

E-PROPS ULTRALIGHTS / AIRCRAFT RANGE

 

caracteristiques helices carbone ulm avion

 

 

E-PROPS : the lightest propellers on the market

 

 

 

Blades

 

 

 

 

 

100% carbon + epoxy resin

Optimum use of carbon fibers to obtain light and strong blades

Foam core with D-Box

RTM manufacturing process

High protection polyurethan varnish

=> see manufacturing

Blade's foot

 

 

 

Carbon fiber rolled up on a titanium ring

No risk of galvanic corrosion because no metal part

Exceptional strength (calculated and verified)

=> see manufacturing

Hub

 

 

 

 

 

 

100% carbon + epoxy resin high T° (120°C)

Ground adjustable pitch

Compact hub for minimum drag and to optimize engine's cooling

Optimum tightening anti vibrations Nord-Lock screws

=> see manufacturing

Hubs drawings to adapt the spinners

=>see hubs drawings

Leading edge protection

 

 

Strong leading edge protection in Nanostrength® resin

2 years Impact Garantee

=>see leading edge protection

E-Props geometry

 

 

 

 

Propellers of 3rd generation : efficient, light and strong

High CL profiles by Hélices E-Props (software LmPTR)

Adapted diameter and blades' numbers

Adapted chord for maximum ESR effect

Specific models to reduce noise, as on EXCALIBUR-6

Moment of Inertia

 

 

Moment of Inertia calculed then verified

Strict respect of the engines limitations

=> see moment of inertia

Balancing

 

 

Blades and hubs balancing at each manufacturing step

Propellers balanced with an electronic bench

=>see balancing

Pitch adjustment

 

 

Ground adjustable pitch propellers

Simple adjustment with a precise digital protractor

=>see pitch adjustment

Life limitation - MTBO

 

 

none

recommended major periodic inspection : 2.000 hrs

=> see tests on ground

Mechanical Strength / Tests

 

 

 

 

 

Centrifugal load : break at 11.000 tonnes, safety coefficient : 7,2

Carbon propeller can hold 6 times the maximal load during 1 hour without any damages

Stress the blade with alternating bending during 2.000 hours at 10 times the worse case of functioning

=> see tests on ground

Certification

 

 

propellers designed, made and tested to meet the requirements aeronautical standards (AESA CS-P)

propellers certified following the LSA (ASTM F2506-13)

=> see certification

Accessories

 

 

 

 

 

 

Delivered with the propeller :

- Flange (black anodized)

- Complete screw kit with Nord-Lock washers

- Digital Protractor

In option :

- Carbon Spinners : several diameters

- Integrated Spacers Sytems (ISS)

Garantee

 

 

 

 

 

Garantee "TEST YOUR PROPELLER DURING 6 MONTHS"

If you are not totally satisfied, you can send the propeller back and E-PROPS reimburse you.

E-PROPS is the only manufacturer in the world to propose this garantee

To propose this garantee, the E-PROPS team is confident of the performances and quality of its propellers !

Number of different ultralights / aircraft models equipped with E-Props propellers at this day (22-05-2017)

thousands of E-Props are on more than 170 different models of

ultralights / aircraft (without counting the paramoteurs models

E-PROPS users feedback

 

see the page USERS FEEDBACK

 

 

changer d'hélice pourquoi ? why change propeller ?

hélices e-props

 

E-PROPS HI-TECH CARBON PROPELLERS