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3 - ASTM F2506-13 (LSA)









The certification of an aeronautical equipment is a process which allows to make sure of the reproducibility and the follow-up quality of this product, from the design phase through the use on a plane. It is an excellent principle in aeronautics, domain where an error or a negligence could have dramatic consequences. Except ultralights or homebuilt aircraft, the other aircraft are certified and must follow strict standards.



The propellers which equip the certified planes must themselves be certified. Today, the obtaining of an aeronautical certification is a complex, long and expensive process. It is not only a question of certifying the production of the manufacturer, but also its method of design of products, assembly line then product itself, and finally adaptation of the product to a defined aircraft.


The process of certification contains several phases and lasts several years. After the certification and the start of a product, the certification agency assures throughout the useful life of the product its responsibility of the surveillance of the initial airworthiness. Besides, a certified product can undergo repairs and modifications, themselves that must be in accordance with the regulations of airworthiness and approved by the competent authority.


The E-Props propellers are designed, then made and tested

to meet the requirements of the aeronautical standards



2 examples :


1/ A very strict quality control in all the stages of the manufacturing, allowing to determine if the components of propellers are in accordance or not with the specifications and the preestablished requirements, including decisions of acceptance, rejection or retouch.


E-PROPS ensures the production monitoring by RFID and KANBAN method. These methods and tools optimize the manufacturing quality, reassure and fluidify the supplies, allow the real-time follow-up of the production process, the traceability of all the manufacturing steps, and offer a set of successful and reliable indicators.




E-PROPS : production monitoring by RFID and KANBAN




2/ Centrifugal load tests of a set "carbon hub and carbon blade": the E-Props propellers hold 6 times the maximal load during 1 hour without any damages (EASA CS-P asks only 2 times for certified propellers). See Centrifugal load test of a carbon E-Props propeller








Quality and security are ongoing concerns for HELICES E-PROPS all along of design, purchases, fabrication, tests and marketing of its products.


E-PROPS quality charter

click on the picture to obtain the document in PDF




In 2018, ELECTRAVIA - Hélices E-PROPS begins the certification

of the company (engineering and production line),

as well as of certain models of aircraft propellers








3 - ASTM F2506-13 (LSA)


E-PROPS meets the ASTM F2506-13 standards, for the LSA aircraft :


E-PROPS ASTM F2506-13 compliance summary









The Service Bulletins are published by the manufacturers of aeronautical products. They are established to prevent the users of a technical problem, a novelty or an improvement of the aeronautical product, as well as to transmit a technical information concerning the use of the aeronautical product.


Hélices E-Props has chosen the complete transparency towards the users of its products.


The improvements, modifications and changes brought to its products further to tests, feedbacks and possible problems met by the users are detailed in Service Bulletins written by the company. It is not an obligation, but a security approach in the sector of the leisure aviation.


Some manufacturers of aeronautical products made for ultralight aircraft (not certified) do not bother writing such Service Bulletins. Unlike those companies, Hélices E-PROPS has chosen to be transparent and publishes here its Service Bulletins. The team E-PROPS recommends to the users to chose suppliers who present their Service Bulletins to prevent their customers.


Incomplete review of all information in this document can cause errors. Please read the entire Service Bulletin to make sure you have a complete understanding of the requirements.

The Service Bulletins of the Hélices E-Props company are available hereafter.

At this date, and since 2008, date of the creation of the E-PROPS company, there were two Service Bulletins, which both concern direct drive engines.




BS REF 16-001


BE CAREFUL => this recommendation only applies to UL-POWER 260i engine


Date :


4th of July, 2016


Propellers concerned :


E-Props propellers ground adjustable pitch VORPALINE-S model for aircraft and ultralights fitted on direct drive engine UL-Power 260i

Service Bulletin issued after a bad assembly by an user


Subject :


Tightening of the screws which hold the propeller on the engine's flange : with titanium rods


Required action :



Replacement of the screws which hold the propeller on the engine's flange with titanium rods provided by the manufacturer E-PROPS


Please note :



At this day, all users who have a propeller for this type of engine have received a kit of titanium rods with the manual and have personaly been informed


Classification :




Complete document in pdf : HEPBS16002F.pdf





BS REF 15-002


BE CAREFUL => this recommendation only applies to some direct drive engines (without reduction drive)


Date :


25th April, 2015


Propellers concerned :



E-Props propellers ground adjustable pitch for aircraft and ultralights fitted on direct drive engines (without gear box) : Jabiru, D-Motor, UL-Power, VW, Limbach, Continental, Lycoming


Subject :


Importance of a correct tightening of the screws which hold the propeller on the engine's flange


Required action :


Reminder of the procedures to tighten and verify the torque of the screws which hold the propeller on the engine's flange


Classification :




Complete document in pdf : HEPBS15002A.pdf