RV-12 propeller comparison : E-Props vs Sensenich

One of our customers has made test campaigns between his old propeller (Sensenich) and his new one (E-Props). Here below you can find his comments, figures, pictures.

“Here is about as good as I could get for a direct prop comparison for similar days. 25 degrees on the E-prop approximates the Sensenich and my objectives. In a nutshell this prop at this pitch gives an increase of 200 fpm climb and 3 knots in top speed and cruise at about an inch increase in engine manifold pressure. No measurable changes in temperatures. My target indicated climb speed of 75 knots dropped the RPM down lower than maximum power output on both props so climb rate may increase at a higher climb speed but I did not test for optimum climb. Other E-prop pitches showed as much as 10 knot increase in top speed with reasonable climb rates but the engine was lugging at too high MP for engine health.

The prop is very smooth with less drag so your descent and low MP speed increases. It also appears less responsive to turbulence. It does weigh less. I’m redoing my Weight & Balance for a direct comparison that I’ll share when complete.”

Propeller 3-blade ground adjustable pitch DURANDAL-3

CARBON with TITANIUM Leading Edge
For RV-12 Rotax 912S / 914 gearbox 2.43
Diameter: 175 cm / 68.9 inch
Weight: 2 kg / 4.4 lb
Moment of inertia: 2200 kg.cm²
First recommended pitch = 25 to 27°
TBO = 4000 hours
Instruction Manual : https://aircraft.e-props.fr menu “Manuals”