GLORIEUSE - June 2021
Here is the range of in-flight variable pitch propellers GLORIEUSE for ROTAX 4-stroke 912S and 912iS engines, currently at the end of the test campaign.
We are working hard to propose high quality, innovative, ultra-light and reliable propellers.
At E-PROPS, each model is tested during some years before introduction to the market.
The GLORIEUSE range will be previewed at the Blois Airshow 2021
(Sept 3, 4 and 5, 2021 in France,
GC 32 Booth East Zone). Then it will be offered on the market from September 2021.
=> Currently (July 2021
), our test pilot Samy finished the last flight test campaigns.
Tests in progress : Samy Dupland (test pilot) and Jérémie Buiatti (designer)
We're in the process of industrializing the Variable Pitch Propellers production line.
We manufacture the parts in the final moulds. The last mechanical tests were carried out on the flight parts; they will be presented in several videos.
This variable pitch propellers concept is particularly innovative and required a great deal of development time and upstream testing.
3-blade variable pitch propeller GLORIEUSE on a VL3
GLORIEUSE : 3-blade tractive propellers, full Carbon with Titanium leading edge protection, in-flight variable pitch system
For ROTAX 912S / 912iS engines
[models for ROTAX 914 and 915iS to come]
Innovative patented technology
Carbon blades with Titanium leading edge
Max power : 140 hp
Max rpm : 2.600
Available in 7 diameters : 1,60 m / 1,65 m / 1,70 m / 1,75 m / 1,80 m / 1,85 m / 1,90 m (one different mold for each diameter)
Moment of inertia : 2.600 kg.cm²
Total weight: 3-blade propeller + CS instrument + spinner = 4 kg
Electro-hydraulic control for Rotax:
Configuration 2 (hydraulic equipped)
Configuration 3 (not hydraulic equipped)
Max pitch / min pitch in less than 5 seconds
Safety stops min. pitch / max. pitch
Pitch variation: max. range 16°
E-SCREEN "Constant Speed"
specific instrument, designed and manufactured by E-PROPS.
: rpm adjustment potentiometer, intake pressure, tachometer, oil pressure, oil T°, water T°, battery voltage, ...
Automatic over-torque protection.
Setting via Bluetooth.
Automatic mode (Single Lever Control).
High readability screen.
: only with potentiometer with and without scale (to come)
E-Screen Constant Speed Instriment - Version 1
- E-PROPS spinners : 13 diameters available, from 230 mm to 380 mm.
- E-PROPS carbon spacers: 38 lengths of ultra-light spacers available, from -20 to + 170 mm
Easy to assemble
MTBO / Major inspection recommended at 2,000 hours
GLORIEUSE Carbon/Titanium 3-blade variable pitch propeller + "Constant Speed" E-SCREEN instrument = 6,850 Euros
Available from September 2021.
Extreme cold tests :-)
Tests above the Durance valley
Current tests - May 2021
Of course, a variable pitch propeller is not very interesting on a SKYRANGER.
However, the SKYRANGER is a good machine for testing over a speed range from 60 to 190 km/h. This one is the "prototype aircraft" of E-PROPS, which we equip with many recording systems :
the DAU MERLIN
between the propeller and the engine communicating via Wifi with the computer for data recording, a cockpit equipped with many instruments
and cameras, a boom under a wing for speed and incidence measurements, etc.
A very important part of the development of the propellers is carried out with our SKYRANGER 100 hp, flown by Samy Dupland
, E-PROPS test pilot.
Once validated on this first speed range, our propellers are tested on other faster airplanes : VL3, BLACKWING, WT9 Dynamic, SHARK, FK12...