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2B - Aileron servo location

3

Step 1.8

While holding the aluminum tubes centered in the

fuselage, carefully slide each wing half onto the tubes and
flush the wing root against the side of the fuselage. See 1J 

Step 1.9

Place flat washers over the wing bolts and then

install the butterfly nuts. Do NOT overtighten. For double
security also install the lock nuts. See 1K

1H - Hold the wing bolt while tightening the lock nut

1J - Plug the wing panels into the fuselage

1K - Tighten the wing nuts. DO NOT OVERTIGHTEN. For
double security also install the lock nuts

1I - Typical installation of wing bolts into the wing

Step 1.7

Secure the wing bolt to the wing by tightening the

lock nut. See 1H

Illustration 1I:

Typical installation of the wing bolts into the

pre-installed blind nuts located inside the wing so that 3 in.
(75 mm) of each wing bolt protrudes from the wing root.

4 mm nut  

Washer  

3-3/4 in.

(95 mm)  

4-3/4 in.

(120 mm)  

Wing root   

Wing nut

4 mm blind nut     

Aileron servo cavity

2A - Prepare the servos by fitting the rubber grommets &
ferrules supplied with your servos

To install the aileron servos into the wing you will need the
following items:
- Servos
- Servo mounting screws and grommets as supplied with

servos

- Servo control arms as supplied with servos
- Two aileron control rod assemblies supplied with the kit

The assemblies consist of a metal rod with a clevis on
each end

- Low tack masking tape
- 2 aileron control horn assemblies

Step 2.1

Turn the wings upside down and locate the aileron

servo cavities. See 2B

Step 2.2

Trial fit the aileron servo into the servo mounting

cavity. You may have to modify the cavity slightly  to provide
clearance for the servo and servo wires. 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 the position of the pushrods at the control
and/or servo horns to control the amount of throw. You may 

also use ATV's if your radio has them but the mechanical
linkages should still be set so that the ATV's are near 100%
for best servo resolution.                

Low rate               

High rate

ELEVATOR

1/3 in (8mm)

up

1/2 in (12 mm)

up

1/3 in (8mm)

down

1/2 in (12 mm)

down

AILERON

1/3 in (8 mm) up

1/2 in (12 mm)

up

1/3 in (8 mm) down

1/2 in (12 mm)

down

RUDDER

5/8 in (16 mm) right

1  in (25 mm)

right

5/8 in (16 mm) left

1  in (25 mm)

left

CAUTION: Tighten snugly but DO NOT OVERTIGHTEN

CONFIRM MECHANICAL INTEGRITY

STAGE    27

5-1/8 in

(130mm)

4-1/2 in

(120mm)

27A - TYPICAL ARRANGEMENT OF RECEIVER, RECEIVER BATTERY, SERVOS AND PUSH RODS

Rudder servos

Receiver

battery

Nose steering
push rod con-
nected to the
rudder servo

Throttle servo

Receiver

Elevator servos

26A - CG location

Tail

Nose

Step 27.1

Once you have confirmed that the CG is correct, you should do a thorough review of the entire model before

your first flight. Check everything twice! Every hook up, every coupling, everything! Do it twice!!

Step 27.2

Before your first flight, have an experienced flyer review your work. Do not fly your model until it has been

checked out by a third party who knows how to fly and how to set up a model aircraft. Do not fly alone. Seek experi-
enced help.

Step 27.3

Once you have completed your first flight, get in the habit of checking your model over before and after each flight!

Don’t fly if you find something that is not right! 

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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