13. Use medium cyano to glue the dummy antennas in place.
14. Open the battery compartment hatch, put you flight pack inside. With
your radio on, set the servos to the neutral position (sticks and trims cen-
tred) and fasten the setting screws of the pushrod connectors on the ele-
vator and rudder servo arms. Perform the throttle range calibration of the
ESC as described in the attachment of this manual.
4
RC SET INSTALLATION AND PREFLIGHT CHECK
• Referring to the instruction manual of your radio carefully hook up the on-
board electronics.
• Once everything has been correctly connected, turn on your transmitter
and plug in the flight pack. Check the neutral positions and throws of all
control surfaces. If you needed to make the control surface throws smaller,
simply move the pushrod closer to the centre on the servo arm or move it
far from the control surface on the control horn. And vice versa.
Recommen-
ded Throws
*Low Rate
High Rate
Rate
Expo
Rate
Expo
Ailerons
±11 mm
30%
±15 mm
30%
Elevator
±11 mm
30%
±20 mm
30%
Rudder
±16 mm
20%
±25 mm
20%
Flaps
Take-off: -10 mm down / Landing: -22 mm down
*) The “Low Rate” recommended control surface throws are suitable for a less
skilled pilot and regular “scalish” flying; the “High Rate” setting allows an experi-
enced pilot exploring the full capabilities of his model.
• Especially less experienced pilots might find their Porter easier to fly with
some extra mixes on (mix rates for the high rate throws):
• Aileron->Rudder
: 12 mm left rudder at full left ailerons, 12 mm right rud-
der at full right ailerons
• Aileron differential:
15 mm up aileron/8 mm down aileron
• Flap->Elevator:
1 mm down elevator for take-off flaps, 2 mm down el-
evator for landing flaps setting.
• Check the direction of rotation of the propeller. If it was incorrect, simply
swap two of the tree wires between the ESC and motor or program the ESC
(refer to the ESC manual).
• Check the correct position of the centre of gravity (CG):
56-60 mm
behind
the leading edge of the wing
(Fig. 18)
. Adjust the CG position by moving
the flight pack - if you could not reach the recommended position, do not
hesitate to add appropriate amount of lead to the nose or tail. An extra
couple of grams won’t spoil the flying characteristics - but the incorrect CG
position is a killer.
• Fully charge your flight pack and transmitter batteries, check the proper
function of your radio and perform the range check of your radio accord-
ing to its instruction manual. The range has to be almost the same with the
motor off and at full throttle (no more than 10% decrease is acceptable). DO
NOT try to fly unless the range check is 100% successful.
APPENDIX
FLYING
The test flying and fine tuning is pretty much straightforward, there will be
no surprise for a medium-advanced pilot that is supposed to fly this model.
“Sea” Porter
It is a good idea to test fly your Porter with the wheels first - just to make your-
self familiar with your new model - explore the safe take-off and landing app-
roach speed, learn to use the flaps. Once the floats are installed check again
the CG position; adjust the battery position and/or add ballast if necessary.
For the first test flights seek an open area of calm water; try to avoid lakes su-
rrounded by tall trees causing turbulence above water. Tall trees would also
force to a dangerously steep climb right after your model gets into the air.
Choose a fine day with a gentle breeze - the take-off is easier if there are small
waves than from a glass-still lake.
Prepare the model as usually, check the RC set and power systems are working
properly. Place your model in the water, pull the elevator up and gently open
the throttle to taxi away from the bank. The model should be easy to control
thanks to the efficient water rudder. Once away enough, switch off the motor
and the model will turn itself directly to the wing thanks to the „weathercock“
effect of the fin.
Open the throttle and allow your model to gain speed until it rises onto the
step of the floats. Leave the elevator at the neutral position; do not apply the
up elevator until the model actually gains the take-off speed (a little bit bigger
than with wheels). Apply gently the elevator; do not force your model into ste-
ep climb or sharp turn. The increased drag caused by the floats makes your
Porter to respond more slowly; the level flight also requires higher throttle
setting. Allow climbing your model to safe height (50 m or so); take you time
to get the feel of your new floatplane. You should try a couple of landing app-
roaches - at first at safe height, at low level later.
However, do not get carried away by your beautiful seaplane, remember you
have to spare enough energy not only for a safe landing but also for the taxiing
back! Allow your model to descend steadily by keeping the throttle a little bit
more open than with a land based plane. Let your model to touch down gently
and smoothly on the water.
Once „docked“, check if there is not water inside of your model. Dry it thorou-
ghly with a sponge if necessary. Check for any signs of damage by flotsam in
the water, thoroughly check the water rudders.
At the end of your water flying session carefully and thoroughly clean and dry
your model from outside and inside. It is wise to carry a bottle of fresh water,
a sponge and a piece of dry fine cloth with you to the lake. The exposed metal
fittings might be happier if protected by a drop of WD-40 spray lube.
Congratulation on your purchase of a KAVAN Line electronic controller for brushless motors. The
state-of-the-art KAVAN Line covers almost the entire range of electric powered planes flown by
a Sunday flyer. All the ESCs can be quickly programmed using your transmitter and even easier
with the optional KAVAN Card.
PROGRAMMABLE FUNCTIONS
1. Programmable Brake Setting (use the brake on for folding props applications only).
2. Programmable Battery Type (LiPo or NiCd/NiMH).
3. Programmable Low Voltage Cut-Off Type (power reduction or immediate shut down ).
4. Programmable Low Voltage Cut-Off Setting.
5. Programmable Soft Acceleration Start Ups (for gearbox and helicopter applications).
6. Programmable Timing Settings (to enhance ESC efficiency and smoothness).
KAVAN R-6B...R-80SB
BEC Type Current (A)
Cont./Burst
Input Voltage
No. of cells
Weight (g)
BEC
(Voltage/Current)
Dimensions
(mm)
KAVAN R-6B
*BEC
6A\8A
2Lipo
5.5g
5V/0.8A
32x12x4.5
KAVAN R-12B
*BEC
12A\15A
2-3Lipo
9g
5V/1A
38x18x6
KAVAN R-15B
*BEC
15A\20A
2-3Lipo
16.5g
5V/2A
48x22.5x6
KAVAN R-20B
*BEC
20A\25A
2-3Lipo
19g
5V/2A
42x25x8
KAVAN R-30B
*BEC
30A\40A
2-3Lipo
37g
5V/2A
68x25x8
KAVAN R-40B
*BEC
40A\55A
2-3Lipo
39g
5V/3A
68x25x8
KAVAN R-40SB
**SBEC
40A\55A
2-4Lipo
43g
5V/3A
65x25x12
KAVAN R-50SB
**SBEC
50A\65A
3-6Lipo
41g
5V/7A
65x29x10
KAVAN R-60SB
**SBEC
60A\80A
3-6Lipo
63g
5V/7A
77x35x14
KAVAN R-80SB
**SBEC 80A\100A
3-6Lipo
82g
5V/7A
86x38x12
*) BEC - linear BEC
**) SBEC - powerfull switching BEC
SPECIFICATION
Programmable Electronic Controllers for Brushless Motors
red
black
Battery
Motor
ESC
Motor
To receiver, throttle channel/
/KAVAN Programming Card
currents up to 20A; 3,5 mm (KAV36.122), 4 mm (KAV36.126) gold plated connectors or DEAN-
T® (KAV36.108) for currents up to 60A and 6 mm (KAV36.128) for currents up to 80A. The
maximum length of the battery pack wires should be within 15 cm (6 inches).
Plug the UNI servo connector cable of the ESC to your receiver throttle output. The ESCs
featuring BEC or SBEC voltage stabilizer will feed your receiver and servos from the flight
battery pack.
KAVAN ESC Wiring Diagram
POWERING UP FOR THE FIRST TIME & THE AUTOMATIC THROTTLE CALIBRATION
The KAVAN ESC features Automatic Throttle Calibration to ensure the smoothest throttle
response and resolution throughout the entire throttle range of your transmitter. This step
has to be performed just once to allow the ESC to “learn and memorize” the throttle output
signal of your transmitter. It only needs to be repeated if you changed your transmitter.
1. Switch on the transmitter, move throttle stick to the top position.
2. Connect battery pack to the ESC, and wait for about 2 seconds.
3. The “Beep-Beep-” tone should be emitted, means the top point of throttle range has been
confirmed.
4. Move throttle stick to the bottom position, several “beep-” tones should be emitted to
present the amount of battery cells.
5. A long “Beep-” tone should be emitted, means the lowest point of throttle range has been
correctly confirmed.
The throttle has been calibrated now and your ESC is ready for operation.
NORMAL ESC START-UP PROCEDURE
1. Move throttle stick to bottom position and then switch on transmitter.
2. Connect battery pack to ESC, special tone like “
123” means power supply is OK.
3. Several “beep-” tones should be emitted to present the amount of lithium battery cells.
CONNECTING THE KAVAN ESC
The speed controller can be connected to the motor by soldering directly or with high qual-
ity connectors. Always use new connectors, which should be soldered carefully to the ca-
bles and insulated with heat shrink tube. Use only high quality connectors to connect the
ESC to the flight pack as well - 2 mm gold plated connectors (KAV36.119 or KAV36.120) for
Please bear in mind improper polarity or short circuit will damage the ESC therefore it is
your responsibility to double check all plugs for proper polarity, and proper connection
BEFORE connecting the battery pack for the first time.
