ROKO SKYRACER NG4

The Roko Skyracer NG4 is a single-engined sport aircraft, available in both LSA and ultralight models, which seats two side by side, produced in the Czech Republic.

GLORIEUSE-3
I'm very happy for the choice. This Glorieuse has replaced a two blade hydraulic Woodcomp variable pitch propeller (1.81 mt diameter) and the change has improved the aircraft performances.
Take off is approx 10-15% shorter (as I expected), and cruise speed increased by 5-10 knots (and I was expecting to be reduced due to the increase of blades count) but with 100 rpm less. I was normally cruising at 5150 rpm and 25.3 MAP but now it seems that the best is 5050 rpm and 26 inches MAP to get 115 knots.
I'm still testing different scenarios and awaiting for hotter season, but 'till now, I'm really satisfied.
Propeller: GLOR-3-175-C8-T (remplace Woodcomp)
Plane: ROKO NG4UL
Engine ROTAX 912ULS(100HP)
JIHOSTROY governor
M.R. (2026-03-12)

GLORIEUSE-3
Glorieuse Constant Speed propeller: my first impressions are very favorable.
The use is ultra simple, the control box very readable and responsive and the performance seems to be up to my expectations.
Thank you for your welcome and your very competent technicians.
D.H. (2022-06-16)

DURANDAL-3
Good propeller. Strong and very light.
B.S. (2016-07-04)