3- AND 2-BLADED FC PROPELLERS
The DUC FC propeller is the fisrt product of the new company, taking advantage of its decade experience in high-tech carbon products, and very heavy investments have been made to create the production tools required to provide a perfectly reliable product with improved performances.
The standard version is carbon,
with the option of painted blades - a shiny black.
This propeller is to be used on motors from 40 to 80 HP, with up to 4.0:1 gearboxes ratio, turning right or left as seen from the blow of the propeller.
Built with the new forged carbon
technology (see:The Technic), it directly benefits of the most recent findings in this
area. Specifically, an improved strength and an homogeneity impossible to
get by traditional means
In comparision to the former products, its very advanced blade profile ensures an increased efficiency.
Three essential caracteristics makes it different from any other product on the market:
On any usual propeller, the tip of
the blade generates a vortex, therefore an important efficiency
loss, exactly where the blade reaches its highest speed.
Usual propeller bladeshave a
constant twist, calculated for the whole of the blade.
staggered blade twist axis:
A number of other improvements have been
made, e.g. a 60 mm blade foot, which tightening is made on an
anodized aluminium ring so as to avoid any electrolytic phenomenon
even after hundred of hours in use. This is as well a light
propeller - therefore cost-efficient - weighting only 2.6 kg / 5.7
lb ready to fly for a 3-bladed propeller.
To choose a DUC FC is making a choice of a high-tech product for which every single detail was designed for performance. The DUC FC ensures a definite increased power, a reduced fuel consumption, and a noise reduction. These three essential factors were part of its goals from the very beginning.
In comparision to other comparable products, generally four-bladed, the DUC FC is as well cheaper both for buying and maintenance.
|Blades:||2 or 3 DUC FC forged carbon blades|
|Hub:||2 1/2 DUC FC half-hubs forged carbon|
|Hub strut:||1 hub strut, anodized gold|
|Screws:||1 DUC FC screws kit|
|Motors:||40 to 80 HP|
|Gearboxes:||Up to 4.0:1|
|Turning:||3'000 rpm max.|
|Diameter:||1.72 m / 68"|
|Weight:||2.6 kg / 5.7 lb 3-bladed|
|Hub torque:||14 Nm / 123 in.lb|
|Gearbox-hub torque:||7 Nm / 62 in.lb|