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DURANDAL 100-R

 

3-blades carbon propeller, ground adjustable pitch, for tow aircraft, tractor configuration

engines ROTAX 912S, 912iS (100 hp), 914 (115 cv) and 915 (135 hp)

hélices E-Props for tow ultralights

 

TECHNICAL DATA

 

 

Brand

HELICES E-PROPS

Model

DURANDAL 100-R

Number of blades

3

Rotation sense

Clockwise [1]

Configuration

Tractor

Propellers designed for

 

 

Tow aircraft with engines ROTAX 912S, 912iS (100 hp), 914 (115 cv) and 915 (135 hp)

Diameters 175 or 180 cm
Weight 2,8 kg
Moment of inertia [2] 3.800 kg.cm²
Max RPM 2.600 RPM
Price 1888 € without taxes

WT9 dtnamic remorqueur E-PROPS

 

[1] clockwise = right rotation in the wind made by the propeller

[2] max moments of inertia => ROTAX : 6000 kg.cm²

 

technical data e-props

click here to discover technical data

 

 

ESSAIS HELICES E-PROPS EFFET ESR

DURANDAL and ESR EFFECT

The ground adjustable DURANDAL, PROPELLER of 3rd GENERATION, provides an excellent efficiency because of a strong ESR EFFECT, which allows to obtain quite the same performances as variable pitch propellers.

Those results are validated by many TESTS CAMPAIGNS, made by the E-PROPS team and by many customers (professionals and privates).

 

 

The 3-blades model DURANDAL is one of the most popular model of the E-PROPS range. Since 2010, hundreds are flying in all over the world, providing a great pleasure to their owners. See the CUSTOMERS FEEDBACK

 

There are 8 different sub-models of DURANDAL propellers, depending on the engine (Rotax 912, 912S, 914, 915), reduction ratio, diameter (from 155 to 180 cm), use (speed, cruise, STOL, tow). Any time it is a different blade geometry, in order to have the exact propeller adapted to the aircraft, the engine and the use. The DURANDAL-R model is specially designed for towing use.

 

 

DELIVERY :

Each DURANDAL 100-R propeller is delivered complete and ready to be mounted with :
- All screws (inox 8.8, Nord-Lock washers)

- An aluminium black anodized flange for tightening

- The 6 Rotax drive lugs for centering, coming from the ROTAX company (price = 32,5 € without taxes, included in the propeller's total price)

- If necessary, the extended hub which replaces a spacer.

See page EXTENDED HUBS ISS. Option offered : again a major saving !
- The digital protractor, to adapt the pitch, very precise (price = 75 € without taxes, included in the propeller's total price)
- The Instruction and Service Manual of E-Props propellers, updated version.

See it here : MANUALS
- The identification sheet of the propeller with ref number, max RPM, recommended first pitch

- A set of 3 covers for blades protection, in grey cordura, white E-Props embroidery (price = 55 euros, included in the propeller's total price


colis parcel

content of the package DURANDAL 100-R

 

The price of the propeller is including all those components.

Only a potential spinner is in option.

At E-PROPS, no need to add more expensive parts !

 

 

 

LISTE ULM avec HELICES E-PROPS

200 different ultralights models

 

avis clients e-props

customers feedback

 

caracteristiques techniques e-props

TECHNICAL DATA

 

satisfaction guaranteed 6 months E-PROPS

during 6 MONTHS

 

 

 

 

 

COMPARATIVE TESTS on TOW AIRCRAFT

 

 

 

1/ Comparative tests on WT9 tow aircraft (April 2016) - COMPARATIVE VIDEO

 

The 3-blades E-PROPS propeller ground adjustable pitch
- is lighter (gain 9,5 kg)
- less expensive (gain 3 879 €)
- with a 6,5 time higher TBO
is significantly more efficient than the 3-blades variable pitch WOODCOMP

=> PDF file

=> comparative video (Aspres / Buëch, April 2016)

 

eprops remorqueur

click on the picture to see the video

 

 

EXCEPTIONAL => "real time" comparative video :

 

simultaneous take-off of two WT9 Rotax 912S, with the same glider

 

Only propellers are different

 

décollage simultané

left

WT9 with variable pitch WOODCOMP


à droite

WT9 with ground adjustable E-PROPS

 

 

comparative tests propellers tow aircraft e-props woodcomp

 

 

 

 

2/ Comparative propellers tests made on WT9 Dynamic Club SD tow aircraft (May 2014)

 

Between :

- reference propeller : composite 3-blades ground adjustable pitch (DUC WINDSPOON)

- E-Props Durandal 100-R propeller : carbon 3-blades ground adjustable pitch

 

Result : with the E-Props, rate of climb is better of more than 30 % against the reference propeller

 

* Test report dated 17/01/2007 : Dynamic with reference propeller

* Test report dated 20/05/2014 : Dynamic with E-Props propeller

=> Summary July 2014

 

 

essais comparatifs hélices sur WT9 Dynamic remorqueur

7 good reasons to use a E-Props Durandal 100-R propeller on a tow plane

 

 

 

 

3/ Comparative : DURANDAL-R with 2-blades variable pitch propeller

 

End of 2013, a comparative test has been done between two propellers for tow planes :

- 2-blades composite variable pitch, Ø 172 cm, weight 8,6 kg

- 3-blades carbon E-PROPS DURANDAL 100-R ground adjustable pitch, Ø 180 cm, weight 2,8 kg

 

Characteristics of the 3-blades E-PROPS compared with 2-blades variable pitch :

● better efficiency : + 29 kg of static thrust

● lighter : minus 5,8 kg, to respect the max MOI of the ROTAX engines (6000 kg.cm²)

● less expensive (see PRICES)

● easiest to manage in flight

● without maintenance

● MTBO : 2.000 hours

 

E-PROPS : better than a variable pitch propeller !

 

The DURANDAL 100-R has specially been designed for tow aircraft

.

 

 

comparatif hélices pour ULM remorqueurs

 

 

ULM remorqueur tow aircraft E-Props propeller

ULM remorqueur tow aircraft E-Props propeller

ULM remorqueur tow aircraft E-Props propeller

ULM remorqueur tow aircraft E-Props propeller

 

 

Tuto Mecano FFPLUM : assembly and setting of a E-Props propeller (April 2018)

 

 

E-PROPS : the best choice of propellers for tow aircraft

 

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