garyb wrote:Hi
My Rotax powered Sonex has a 68 inch wooden GT propeller off a Tecnam P2008 .Static rpm is around 5100, Solo it climbs sea level at 1800 fpm at 70 kts, cruise 2500' 120 kts 5200 rpm and 5500 135 kts WOT it pulls to the red line 5800 rpm. The prop could probably do with a little more pitch.
Cheers
garyb wrote:Hi
My Rotax powered Sonex has a 68 inch wooden GT propeller off a Tecnam P2008 .Static rpm is around 5100, Solo it climbs sea level at 1800 fpm at 70 kts, cruise 2500' 120 kts 5200 rpm and 5500 135 kts WOT it pulls to the red line 5800 rpm. The prop could probably do with a little more pitch.
Cheers
Skippydiesel wrote:garyb wrote:Hi
My Rotax powered Sonex has a 68 inch wooden GT propeller off a Tecnam P2008 .Static rpm is around 5100, Solo it climbs sea level at 1800 fpm at 70 kts, cruise 2500' 120 kts 5200 rpm and 5500 135 kts WOT it pulls to the red line 5800 rpm. The prop could probably do with a little more pitch.
Cheers
Sounds as close to perfect as you can expect, with a fixed pitch prop.
There is a French propeller maker E-Prop (https://www.e-props.fr/) that seems to have an enthusiastic following here in Australia. Claims of a new approach & great efficiency improvements.
13brv3 wrote:I was looking at the Sensenich prop that Sonex sells for the 912ULS, and I can't find anything like it on the Sensenich site. Sensenich sells a 2 and 3 blade for the 912 series, but they're both ground adjustable. The 2 blade shows a diameter of 66-75 which is much larger than the 60" (presumed from the model number) prop on the Sonex page. Is this something Sonex has custom made? It's really hard to believe a 2-blade 60" prop is enough.
Rusty
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