| DUC SWIRL PROPELLER |
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|
| CARACTERISTICS |
| |
| PROPELLERS |
 |
This
propeller is available in :
- Two-bladed,
- Three-bladed.
Diameter
:
1400 à 1745 mm
| Weight
: |
Two-bladed |
2.570
kg |
| |
Three-bladed |
3.375
kg |
|
|
| |
| HUB : |
 |
The hub used is a carbon
hub identical to DUC FC WINDSPOON propeller, made out
of FORGED CARBON
PROCESS which makes
it possible to obtain exceptional mechanical resistances
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|
|
This propeller was studied to have
an " constant speed " effect. The blades are manufactured
with part of carbon plies and their design was carried out
to obtain maximum strains in torsion and inflection. It's
why the constant speed effect is not dependent on the blade
distortion but on its geometry and its particular profile.
Because of the extra flat profile
and a small cord, we obtain an excellent output as well:
- In
performance,
- In noise
- In consumption.
|
|
ADVANTAGES
|
| Thanks
to the " constant speed " effect, we have very little
variation ot the RPM engine between static and dynamic.
This propeller makes it possible
to have more performances on the whole of flight to knowing
:
- Better effectiveness on the takeoff and in rates of
rise due to the engine speed more raised
- much lengthening-piece in cruising,
- A great comfort of use
|
| TYPE OF BLADE |
 |
The SWIRL blade is available
in two versions :
- la SWIRL STANDARD,
- la SWIRL INCONEL.
|
 |
SWIRL STANDARD
and INCONEL blades
|
|
|
The
INCONEL SWIRL Blade
has the characteristic to be to protect on the level
from the leading edge with an Inconel reinforcement.
INCONEL is refractory stainless with a hardness of very
high surface.
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| APPLICATIONS |
|
Engine |
type
|
Reducer |
Recommended system |
Blade
diameter |
| 3 TRACTIVE AXES |
| ROTAX 912 |
4 times |
2.27
|
Three-bladed RIGHT tractive
SWIRL |
ø STANDARD |
| ROTAX 912
S |
4 times |
2.48
|
Three-bladed
RIGHT tractive SWIRL |
ø STANDARD
|
| ROTAX 503 / 582 |
2 times |
2.58 / 2.62
|
Two-bladed LEFT tractive
SWIRL |
ø STANDARD |
| ROTAX 503 / 582 |
2 times |
3
|
Three-bladed LEFT tractive
SWIRL |
ø STANDARD |
| JABIRU |
4 times |
-
|
Two-bladed RIGHT tractive
SWIRL |
ø 1620 mm * |
| VOLKSWAGEN |
4 times |
-
|
Two-bladed RIGHT tractive
SWIRL or LEFT according to adaptaion of the engine |
ø 1620 mm * |
| 3 PROPULING AXES |
| ROTAX 912 |
4 times |
2.27
|
Three-bladed LEFT propelling
SWIRL |
ø STANDARD |
| ROTAX 912 S |
4 times |
2.48
|
Three-bladed LEFT propelling
SWIRL |
ø STANDARD |
| ROTAX 503 / 582 |
2 times |
2.58 / 2.62
|
Two-bladed RIGHT propelling
SWIRL |
ø STANDARD |
| ROTAX 503 / 582 |
2 times |
3
|
Three-bladed RIGHT propelling
SWIRL |
ø STANDARD |
| JABIRU |
4 times |
-
|
Two-bladed LEFT propelling
SWIRL |
ø 1620 mm * |
| VOLKSWAGEN |
4 times |
-
|
Three-bladed RIGHT propelling
SWIRL or LEFT according to adaptation of the engine.
|
ø 1620 mm * |
| PENDULARS |
| ROTAX 503 / 582 |
2 times |
2.58 |
Two-bladed RIGHT propelling
SWIRL |
ø STANDARD |
|
| * For the very fast machines (speed higher
than 200 km/h) we advise a 2 blade right tractive propeller
with a reduction of the diameter according to the smoothness
and the speed of the apparatus |
| |
| ADJUSTMENT |
| |
| ANGLE OF ATTACK : |
The values which follow are theoretical
values and the number RPM engine in statics must be checked.
|
|
|
The chock is carried out with the tool for adjustment plated
on the under-surface (leading edge in top) to 20 cm of the
blade tip. The angle d'attaque is formed by the vertical and
the leading edge of the blade. For this, place your ULM so
that the carries - propeller plate is perfectly vertical.
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ADJUSTMENT : |
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