EXCALIBUR-4
In 2013, I also did a propeller comparison on my 80hp delta trike. Between Arplast, Duc and E-Props.
On my DTA Voyageur I had an original Arplast.
Being neighbour of Duc, they had the good idea to lend me a Duc Flash for tests.
And since you can try an E-Props propeller for 6 months and return it if it doesn't suit you, I was able to try the Excalibur-4.
I set the pitches so as to have a maximum speed of 5400 rpm in static.
If the Arplast takes about 100 t more with speed, the Duc loses a hundred and the Excalibur more than 200.
Only the Excalibur allowed me to exceed the VNE in level flight.
That's the one I kept.
Since then I've opted for the Excalibur-6 which is quieter and I gain a few meters at takeoff.
J.L. (2019-10-22)