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Vmar SU27 FLANKER 60-91, Assembly & Operation Manual

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Vmar SU27 FLANKER 60-91 Assembly & Operation Manual Download Page 11

6

6D - Apply 

sufficient epoxy to  both

sides of the exposed wood

6E - Apply plenty of epoxy into the
fuselage slot for the vertical stabilizer

6F - Slide the vertical stabilizer into
place. Wipe off any excess epoxy

11

The SU 27 FLANKER has two separate elevators and
two separate elevator control rods each running to an
independent servo.

Step 19.1 

The 2 control rods connect-

ed to the rudders exit inside the fuse-

lage. Attach and secure the rudder con-

trol horns to the rods as illustrated in

19A.

Step 19.2 

Install your rudder servos as

shown in 17A and 19B. Connect the

rudder servos to your receiver. Power

up the receiver and center the servos at

neutral.

19A -  Connect the 2 rudder control
rods to the rudder control horns.

19B -  Install the rudder servos.
Connect the control rods between
the servo arms & the rudder control
horns. 

18B - Connecting the elevators to the servos

18A -  Elevator control rods  

CONNECTING THE PUSHRODS TO THE ELEVATORS

STAGE    18

CONNECTING THE RUDDERS  TO THE RUDDER SERVOS

STAGE    19

Do not apply epoxy near the rudder control rod

Do not apply epoxy near the hole guide

INSTALL THE LANDING GEAR

STAGE    7

The SU 27 FLANKER has a tricycle gear con-
figuration (trike gear) using a steerable nose
wheel and main landing gear

INSTALLING THE SERVOS

STAGE    17

Install the rubber servo grommets and
brass ferrules supplied with your radio
equipment. The 5 servos that control
the 2 elevator surfaces, 2 rudders and
throttle are to be installed in the servo
cavities located towards the back of
the fuselage. See 17A & 27A

Step 16.1

The elevator control horns are installed through the elevators and protrude from the bottom 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 control horns installed

16B - Typical control horn mounted to
the control surface

16D - Rudder control horns installed

17A -  Location of the 2 elevator, 2 rudder and throttle servos.

Tail

Elevator servos location

Nose

Rudder servos location

Tail

Nose

Rudder control
rods

Rudder control
horn 

Rudder control
horns

Tail

Nose

Elevator servos

Rudder

control rod

Rudder hole guides

Exposed wood below this line

Step 6.1 

The Su 27 FLANKER has two vertical stabilizers.

See 5A. Check the fit of the vertical stabilizers in their slots.
Make sure the rudder control rods fit into the rudder hole
guides. See 5B & 5C. 

Do not glue anything yet! 

Step 6.2 

Remove both vertical stabilizers from the fuselage.

Apply sufficient 30 minute epoxy into the right fuselage slot
for the right vertical stabilizer. Use 30 minute epoxy only. See
5D. 

Do not apply epoxy near the rudder hole guide

Step 6.3 

Apply sufficient 30 minute epoxy to the exposed

wood on both sides of the right vertical stabilizer. Use 30
minute epoxy only. See 5E. 

Do not apply epoxy near the

rudder control rod.

Step 6.4 

Install the left vertical stabilizer using sufficient 30

minute epoxy and the same procedure. Carefully wipe off
any excess epoxy. 

6A - Vertical stabilizer with pre-installed rudder and rud-
der control rod 

6B -  Rudder hole guides.

6C - Trial fit the vertical stabilizer in its slot

INSTALL THE VERTICAL STABILIZER

STAGE    6

FITTING ELEVATOR AND RUDDER CONTROL HORNS

STAGE    16

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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