Ground Adjustable Propellers for direct-drive engines.
Carbon-Titanium, ground-adjustable propellers for Experimental/LSA and homebuilt aircraft — different ranges covering Lycoming, Continental, Jabiru, VW direct-drive engines, and other
direct-drive engines.
ASCALON, our first models (for some Lycoming & Continental engine), are available now.
E-Props: Light is Right.
Efficient
Faster climb, shorter takeoff roll, added safety margin at departure.
Strong & Durable
High safety margin, unlimited service life, TBO up to 2,000+ hours.
Ultra-Light
2-blade from 6 kg / 13.3 lb, 3-blade from 7 kg / 15.5 lb — less weight up front.
EASA Certification In Progress
ASTM F2506-13 compliant today; EASA CS-P type certification underway.
ASCALON — Experimental/LSA now, certified soon.
A range of 2- and 3-blade ground-adjustable propellers, 100% carbon with titanium leading-edge protection, for tractor-configuration direct-drive Lycoming and Continental engines from 100 to 270 hp. On the market since February 2026, with EASA CS-P certification underway for future use on certified aircraft.
- Diameters
- 140–210 cm / 55–82.7 in
- Weight
- 6 kg (2-blade) / 7 kg (3-blade)
- Inspection Interval
- 2,500 hours
- Max RPM
- 3,300 rpm
Every ASCALON ships with a personalized ELIAS vibration survey of your exact engine — learn how it works.
Full ASCALON Specifications
A range built for direct-drive.
E-Props already runs dedicated ranges for paramotors, ultralight/Rotax aircraft and drones — because each audience has different clients, products, technologies and manuals. Direct-drive engines are a distinct universe: different aircraft, different engines, different mounting standards, different vibration behavior, different certification standard.
Every gram justified, every profile optimized.
E-Props propellers are shaped by proprietary software and validated on real engines.
LUKY Design Software
Proprietary evolutionary-algorithm software that optimizes blade profiles for each engine, aircraft and mission profile.
100% Carbon, RTM Manufacturing
Resin Transfer Molding with a very high fiber ratio — strong, light, and free of the cyclic-stress cracking risk of metal hubs.
Titanium Leading-Edge Protection
A titanium shield bonded to the leading edge protects the blade against erosion and impact throughout its service life.
Vibration & Torsional Analysis
Every configuration is validated on real engines, including instrumented torsional-vibration testing on Lycoming O-360.
6-Month Money-Back Guarantee
Fly it. Test it. Decide. E-Props is the only propeller manufacturer in the world to offer a contractual 6-month money-back guarantee — in place since 2008.
Order & Install
Buy your ASCALON propeller and install it on your aircraft and engine, following the E-Props manual.
Test for 6 Months
Fly it in real conditions, across all phases of flight. You have 182 days from the shipment date to make up your mind.
Satisfied or Refunded
Not fully satisfied? Return it in its original condition and E-Props will refund you.
Applies to E-Props aircraft & ultralight propellers. Return shipping and a handling fee apply — full conditions in our Terms & Conditions of Sale.
Ready to equip your project?
Tell us about your aircraft and engine — we'll help you find the right propeller configuration.