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Protech Tiger Moth

| Review
21-May-2004 |
Patrick Plawner |
Video Available |
Video of test
flight |
| Motor |
Ultrafly 30/29 |
Servos |
4 x W-084 Micro Servos |
| Speed Controller |
Castle Creation 35 |
Batteries |
8 x KAN 1050 |
| Channels |
5 |
Flight Time |
around 6 minutes + |
| Propeller |
8x4 |
Gear Box |
1.93 |
| Power
consumption |
up to 16-17A, at full speed |
|
|
.
| Wingspan |
35.4 "
90 cm |
Length |
28.7"
73 cm |
Empty
weight |
oz
gr |
All
up weight |
30 oz
850 gr |
| Wing Area |
356 sq.inch
23 dm² |
Wing load |
12.15 oz/sq.ft
37 gr/dm² |
CG location
from wing edge |
3.5"
from top wing edge
8.9 cm from top wing edge |
.
| Building |
I belong to the group of people who does
not like to build. Just flying is fun. Said that, "building" this plane was
a real pleasure. It comes ARF, but there are still few parts to work on,
like the landing gear, or the motor holder, unless you use the standard
400 setup recommended. Everything fitted perfectly. All is included in the
kit, in order to finish the building properly. Just some screws did not
match, but apart from that, everything went smooth, and fun.
One recommendation, don't push too hard on the pieces that needs to get
into the wing, or you may break the part itself. I did it and had to do
some minor repair there (see pictures).
The plane was designed to install a 400 motor geared, on the ready
firewall. Installing a different set, like I did required some little
work.
The wires in the wings, are pre-installed, so just need to solder them to
the servos.
See the user Manual ONLINE
(PDF file)
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| Take-off |
With the motor setup I used, there was a
serious torque effect, and it was therefore required to use the rudder, in
order to take off. It actually added to the scale like behavior of this
plane. The tail lifts off naturally then you just need to slightly pull,
and you're off the ground |
| Flight behavior |
This is not a plane that will fly on its
own. It needs attention, proper rudder compensation, at the right time. It
flies good with a brushless motor, but need experience, as the plane would
tip stall at the first time the pilot would not pay attention to the angle
of attack or making a too sharp turn without enough airspeed.
Speaking of airspeed, the plane needs some good speed to stay stable. Not
sure how good it behaves, due to this, if using a standard 400 geared
motor.
Also note that the flying weight, given by the manufacturer is 690
gr, while I got 850 gr which is significantly higher.
|
| Landing |
looks very scale. Keep the motor on, until
touch down. Very easy on the ailerons, as at slow speed, Reactions are
slower, then brutal.
The landing gear, if well build will be unbreakable. On the other hand,
the pieces that keep it tied to the fuselage broke few times. Epoxying it
should do a good job |
| Crash Results |
no crash so far... But balsa plane. |
| Repairing |
balsa |
| Other comments |
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| Interesting Links |
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| FMS plane |
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| Pictures |
Protech TigerMoth
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Latest Update:
Monday, 19 September 2005
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