VarioProp from Germany - THE answer to the
propeller dilemma!
Electric flight requires careful matching of the motor, battery, gear
reduction, and propeller. Very often, though, the propeller you need
just doesn't exist - they have 10.5"x 6", but not the 10.5"x 7" you
need, and so on... If you need a 3-blade, 4-blade, or scale
propeller... forget it, you'll just have to "settle" for something less
than optimum.
But not anymore! VarioProp Hub&Blade systems give you two hub sizes
in 2, 3, and 4-blade configurations with an ingenious system for adjusting
blade pitch. Hub 6A only weighs 5 grams and allows adjustment from
2.5 inches to 6 inches of pitch. It comes in variations to fit
2.3mm, 3.2mm, and 4.0mm motor/gearbox shafts. Hub 8B weighs 12 grams
on average and allows adjustment from 3 inches to 10 inches of pitch.
It comes in variations to fit 3.2mm, 4.0mm, 5.0mm, and 6.0mm
motor/gearbox shafts. Add three types of blades (speed, scale, and
slowfly) and you have infinite possibilities - and the certainty that you
can find the perfect propeller for your electric model.
Before I tried VarioProp, I was concerned about durability and wondered if
the blades would be stiff enough to handle brushless motor power.
Raves from the German newsgroups convinced me to try one, and I found that
the VarioProps are both rugged and efficient. Even more important,
they look great and make your fellow modelers envious.
VarioProp costs a little more up front, but remember that you'll never
spend money on props you can't use. Instead of buying three props to
test, you buy one VarioProp and turn the little screw 'till your model flies
just right. When you break a blade, you buy one blade ($1.20 or
$1.80), not a $4 to $20 propeller. ... you can also use the same hub
with same blades for a pusher.
From S400 pylon racers to B-17 bombers, VarioProp works. Try
one!
varioPROP Hubs
Hub size
shaft weight
[mm ] [ g ]
2-blade-hub -6A 2.3 5.2
2-blade-hub -6A 3.2 5.0
2-blade-hub -6A 4.0 4.9
3-blade-hub -6A 2.3 5.2
3-blade-hub -6A 3.2 5.0
3-blade-hub -6A 4.0 4.9
4-blade-hub -6A 2.3 5.2
4-blade-hub -6A 3.2 5.0
4-blade-hub -6A 4.0 4.9
spinndock screw -6A 1.6
2-blade-hub -8B 3.2 11.3
2-blade-hub -8B 4.0 11.3
2-blade-hub -8B 5.0 11.2
2-blade-hub -8B 6.0 11.2
3-blade-hub -8B 3.2 11.4
3-blade-hub -8B 4.0 11.4
3-blade-hub -8B 5.0 11.3
3-blade-hub -8B 6.0 11.2
4-blade-hub -8B 3.2 14.2
4-blade-hub -8B 4.0 14.2
4-blade-hub -8B 5.0 14.1
4-blade-hub -8B 6.0 14.0
spinndock screw -8B
2.4
varioPROP Blades
*
Fits Hub inch
cm grams max rpm
D 6A
5.6 14.1 1.45 19,100
D 6A 5.8 14.7 1.46
18,300
D 6A 6.0 15.4 1.75
17,500
SG 6A 6.2 15.7 2.01
15,000
D 6A 6.5 16.5 2.2
16,300
D 6A 7.0 18.0 2.54
15,000
G 6A 7.1 18.1 2.98
9,600
SG 6A 7.2 18.3 2.95
14,000
D 6A 7.5 19.1 2.93
14,100
SG 6A 7.7 19.6 3.60
10,500
G 6A 8.0 20.2 4.13
9,300
SG 6A 8.2 20.8 3.10
8,900
G 6A 9.0 22.8 4.22
6,500
D 8B
7.9 20.0 4.49 13,500
D 8B
8.9 22.7 5.51 11,800
D 8B
9.4 23.9 4.90 11,000
SG 8B
9.7 24.6 7.95 9,700
D 8B
9.9 25.1 6.73 10,700
D 8B
10.4 26.4 7.95 9,300
D 8B
10.9 27.7 8.39 9,700
SG 8B
11.9 30.2 14.2 6,500
D 8B
12.4 31.5 10.6 9,300
*D= direct / high-rpm
*G= slow-fly for gearbox
*SG= scale - direct or
geared
