Vmar SU27 FLANKER 60-91 Assembly & Operation Manual Download

Page: 12 / 16

Adjust the deflection of the control surfaces to match the
specifications on page 14. You can reduce the amount of
throw by doing either or both of the following:
- From the servo end, move the clevis or EZ connector to a

hole in the servo arm that is closer to the servo output shaft.

- From the control horn end, move the horn out further on

the threaded bolts. Always confirm that the horn is still
thoroughly engaged with the threaded bolt after you have
adjusted it.

ADJUST CONTROL SURFACE THROW LIMITS

To install the stabilizers into the fuselage you will need:

- Fuselage
- 2 Vertical stabilizers with pre-installed rudders
- Right and left horizontal stabilizers with pre-installed
elevators

4A - The fuselage slots for the verti-
cal & horizontal stabilizers

4B - 2 Horizontal stabilizers with pre-
installed elevators

4C - 2 Vertical stabilizers with pre-

installed rudders

Vertical slot

Horizontal slot

FITTING THE HORIZONTAL AND VERTICAL STABILIZERS

STAGE 4

STAGE 21

FINAL RC SET-UP

STAGE 22

Step 22.1

Before starting the final set-up of the model,

switch on the radio and ensure that all trims are in their
neutral positions. Check that the aileron, elevator and rud-
der are centered. If any adjustments are needed, do these
by uncoupling the relevant clevis and turning it clockwise to
shorten the linkage or counter - clockwise to lengthen it.
Only when each control surface has been centered

mechanically in this way should you begin adjusting the
surface movement (or throw).

Step 22.2

Now confirm that the control surfaces are mov-

ing in the correct direction. Use the servo reversing switch-
es on your transmitter to reverse the direction of a servo if
necessary.

20B - The throttle servo controls the engine throttle using the throttle control
rod

20A - The throttle arm and clevis con-
nected to the engine throttle arm

With the throttle control arm clevis connected to the engine

throttle arm, move the throttle arm to roughly half throttle.
Look into the throat of the engine carburetor as you rotate

the throttle arm and select a position where the throttle
opening is about haft what it is when fully open. Install and
connect the throttle servo.

INSTALL & ADJUST THE THROTTLE CONTROL

STAGE 20

19C - With the servos and rudders at
neutral, connect the clevises and then
tighten the control horn set screws.

19E - Connecting the steering control
rod to the servo arm.

NOTE: In some market areas, the EZ
connector shown has been replaced
by a clevis.

19D - Connect the nose gear steering
control rod.

Rudder

control rod

Rudder control rods

Connect to

the rudder

control rod

Connect to

the steering

control rod

Steering

control rod

Step 19.3

Connect the control rods between the rudder servo arms & the rudder control horns. See 19B, 19C & 19D

Step 19.4

Connect the nose gear steering rod to the rudder servo as shown in 19D and 19E.

5A - Left and right horizontal stabilizers with pre-installed
elevators

Step 5.1

Locate the left and right horizontal stabilizers.

See 5A

Step 5.2

Trial fit the right and left horizontal stabilizers into

the fuselage slots. See 5B.

Do not glue anything yet!

Step 5.3

Remove both horizontal stabilizers. Apply suffi-

cient epoxy to the exposed wood of the left horizontal sta-
bilizer and into the left slot in the fuselage. Use 30 minute
epoxy. See 5C.

Step 5.4

Insert the left horizontal stabilizer into the fuse-

lage slot and adjust to match the distances shown in 5D

Step 5.5

Repeat step 6.4 for the right horizontal stabilizer.

Step 5.6

Wipe off the excess epoxy. See 5E

INSTALL THE HORIZONTAL STABILIZERS

STAGE 5

5B - Trial fit the horizontal stabilizers
into the fuselage slots

5G - After installation of both horizon-
tal stabilizers

5E -

Wipe off the excess epoxy

5F - Use 3mm steel rod or screw driv-
er to align the rudder hole guide

5D - Insert the left horizontal stabilizer
into the fuselage and adjust the dis-
tance

Pre-installed elevators

Left horizontal stabilizer

Right horizontal stabilizer

5C - Apply sufficient epoxy to the
exposed wood area

Rudder hole guides

350mm

250mm

Summary of Contents for SU27 FLANKER 60-91

Page 1: ...oreign objects well clear of engines when they are operating Take particular care to safe guard and protect your eyes and fingers and the eyes and fin gers of other persons who may be nearby Use only a good quality propeller that has no cracks or flaws Stay clear of the propeller and stay clear of the plane of rotation defined by the propeller The Manufacturer Distributor Retailer and or other sup...

Page 2: ... the hidden blind nuts in each wing so that 3 3 4 in 95 mm of threaded bolt protrudes from each wing root See 1F 1G and 1I on Page 3 1D Wing attachment hardware for Step 1 3 and Step 1 9 1F Apply liquid thread locker and carefully thread the short end of the wing bolt into the hidden blind nuts in the wing 1G Install the two wing bolts into the wing 1E The wing bolt locations Rear wing spar joiner...

Page 3: ...Use a hobby knife to modify the cavity as required Most servos have their out put shaft closer to one end than the other We recommend locating the servo so that the output shaft is as close to the rear of the wing as possible Aileron INSTALLING THE AILERON SERVOS INTO THE WING STAGE 2 14 CONTROL SURFACE THROW SPECIFICATIONS The throws are measured at the widest part of the control surface Adjust t...

Page 4: ...d installed CONFIRM RADIO OPERATION STAGE 25 BALANCING THE AIRCRAFT STAGE 26 4 1 3 in 110mm 24A Location of servos at aft end of fuselage 24B Receiver battery and receiver location Receiver Elevator servos Rudder servos Throttle servo Receiver Battery Step 24 1 Consult your radio manual for instructions about hooking up your receiver Step 24 2 Plan where you are going to put the receiver with cons...

Page 5: ...e the throttle arm to roughly half throttle Look into the throat of the engine carburetor as you rotate the throttle arm and select a position where the throttle opening is about haft what it is when fully open Install and connect the throttle servo INSTALL ADJUST THE THROTTLE CONTROL STAGE 20 19C With the servos and rudders at neutral connect the clevises and then tighten the control horn set scr...

Page 6: ...ttom of the elevators Pierce the covering over the pre drilled holes and install the control horns as shown See 16B 16C Step 16 2 The rudder control rod arm runs through the rudder hole guide and exits into a cavity in the bottom of the fuselage beneath the rudders Step 16 3 Install the supplied rudder control horn assemblies See 16D Loosely tighten the set screws only at this point 16C Elevator c...

Page 7: ...NG GEAR STAGE 8 INSTALLING THE NOSE GEAR 8B Main landing gear location on the fuselage left side 8C Mount the main landing gear to the fuselage 8D Both main landing gear mounted to the fuselage 15B Install the spinner backing plate 15C Install the propeller the prop washer and the prop nut 15D Install the spinner cone using the retaining bolt Ensure the retain ing bolt is tight and secure 9B Turn ...

Page 8: ...he fuselage 9 INSTALLING THE ENGINE STAGE 12 The VMAR SU 27 FLANKER is designed for 60 to 91 size two stroke engines The model has not been designed to accommodate four stroke or gas powered engines 12A 91 2 cycle engine VMAX 91PRO shown 12B Allow for gap between the spin ner back plate and the fuselage 12C Mark the location of the engine mounting holes 12D Drill 3 32 in 2 mm pilot holes at right ...

Page 9: ...he fuselage 9 INSTALLING THE ENGINE STAGE 12 The VMAR SU 27 FLANKER is designed for 60 to 91 size two stroke engines The model has not been designed to accommodate four stroke or gas powered engines 12A 91 2 cycle engine VMAX 91PRO shown 12B Allow for gap between the spin ner back plate and the fuselage 12C Mark the location of the engine mounting holes 12D Drill 3 32 in 2 mm pilot holes at right ...

Page 10: ...NG GEAR STAGE 8 INSTALLING THE NOSE GEAR 8B Main landing gear location on the fuselage left side 8C Mount the main landing gear to the fuselage 8D Both main landing gear mounted to the fuselage 15B Install the spinner backing plate 15C Install the propeller the prop washer and the prop nut 15D Install the spinner cone using the retaining bolt Ensure the retain ing bolt is tight and secure 9B Turn ...

Page 11: ...ttom of the elevators Pierce the covering over the pre drilled holes and install the control horns as shown See 16B 16C Step 16 2 The rudder control rod arm runs through the rudder hole guide and exits into a cavity in the bottom of the fuselage beneath the rudders Step 16 3 Install the supplied rudder control horn assemblies See 16D Loosely tighten the set screws only at this point 16C Elevator c...

Page 12: ...e the throttle arm to roughly half throttle Look into the throat of the engine carburetor as you rotate the throttle arm and select a position where the throttle opening is about haft what it is when fully open Install and connect the throttle servo INSTALL ADJUST THE THROTTLE CONTROL STAGE 20 19C With the servos and rudders at neutral connect the clevises and then tighten the control horn set scr...

Page 13: ...d installed CONFIRM RADIO OPERATION STAGE 25 BALANCING THE AIRCRAFT STAGE 26 4 1 3 in 110mm 24A Location of servos at aft end of fuselage 24B Receiver battery and receiver location Receiver Elevator servos Rudder servos Throttle servo Receiver Battery Step 24 1 Consult your radio manual for instructions about hooking up your receiver Step 24 2 Plan where you are going to put the receiver with cons...

Page 14: ...Use a hobby knife to modify the cavity as required Most servos have their out put shaft closer to one end than the other We recommend locating the servo so that the output shaft is as close to the rear of the wing as possible Aileron INSTALLING THE AILERON SERVOS INTO THE WING STAGE 2 14 CONTROL SURFACE THROW SPECIFICATIONS The throws are measured at the widest part of the control surface Adjust t...

Page 15: ... the hidden blind nuts in each wing so that 3 3 4 in 95 mm of threaded bolt protrudes from each wing root See 1F 1G and 1I on Page 3 1D Wing attachment hardware for Step 1 3 and Step 1 9 1F Apply liquid thread locker and carefully thread the short end of the wing bolt into the hidden blind nuts in the wing 1G Install the two wing bolts into the wing 1E The wing bolt locations Rear wing spar joiner...

Page 16: ...oreign objects well clear of engines when they are operating Take particular care to safe guard and protect your eyes and fingers and the eyes and fin gers of other persons who may be nearby Use only a good quality propeller that has no cracks or flaws Stay clear of the propeller and stay clear of the plane of rotation defined by the propeller The Manufacturer Distributor Retailer and or other sup...

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