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4. If the fuselage is level when lifting the model with your

fingers anywhere between the lines, the C.G. is correct.
Proceed to the checklist in the following section. If you cannot
find a spot between the two lines where the airplane balances,
then either one of the following will happen: If the tail drops
when lifting the model, the plane is tail heavy and will require
nose weight to balance. If the nose drops, the plane is nose
heavy and will require tail weight. Do not be concerned if your
model requires a few ounces of nose or tail weight. Almost all
models require additional weight to balance and fly correctly!

If additional weight is required to balance the plane, purchase Great
Planes

®

Self Adhesive Lead Weights (GPMQ4485). The weight is

segmented in 1/4 oz. increments and is easy to work with. If adding
weight to the tail, attach it to the left side of the fuselage (opposite
the muffler) under the stab. If adding weight to the nose, attach it to
the inside of the fuselage side next to the engine.

5. If you found it necessary to add weight, recheck the

C.G. after doing so.

At this point the airplane setup is complete except for the Active
Flight Stabilization (AFS) system. To activate the AFS system
you need to connect the two wires labeled “AFS A” together and
the two wires labeled “AFS B” together, but before you do,
please read the following:
The AFS sensor is part of the Active Flight Stabilization System.
For the AFS to work properly, it needs to be oriented with the "+"
symbol pointing towards the front of the airplane. Please, use
the image below for reference. Make sure the sensor is installed
tightly to the bottom of the aircraft.

The AFS sensor operates by sensing
the strength and contrast of sun light.
This unit works best when the sun
is at least 25 degrees above the
horizon, and on partially cloudy

days or overcast. Extremely strong sunlight or light
contrast between the sky and the ground may prevent the
module from working at its optimum
. The unit's performance
decreases as the sun gets lower on the horizon (i.e. in the early
morning or late in the evening) and on extremely bright days.You
should also be cautious when flying over snow or water. In these
conditions it is best to disable the unit by setting the gain to
zero or simply disconnecting the AFS's sensor wires
. After
doing this your radio system will work like any other 4-channel
radio system but the flight stabilization system will not operate.

To know if the sun is above 25 degrees in the horizon, place
the fuselage roughly 90 degrees to the sun and then look at
the shadow of the wing on the main landing gear. If the main
landing gear is completely inside the wing's shadow, then it
is safe to fly with the AFS module adjusted to the desired
gain. If any sun hits the main landing gear, then it is best to
set the gain of the AFS to zero or to disconnect it. Flying
with the AFS module active under this condition will produce
undesired results.

The AFS is not an autopilot. It will not fly the airplane for
you
. What it will do is return the airplane from any attitude to
straight-and-level when the sticks are released. The gain
determines how fast it stabilizes your airplane. To adjust the
gain, rotate the screw adjustment in the AFS module fully
counterclockwise (zero gain) and then rotate clockwise to the
position you desire. After extensive testing, we have found that
the optimum gain for inexperienced pilots is around 35% of the
total gain. As you progress in your flying skills, gradually
decrease the gain on the unit until you effectively turn it off by
setting it to zero gain (fully counterclockwise).

Front of
Airplane

AFS SENSOR

Setting up Active Flight Stabilization

16

Summary of Contents for Nexstar select

Page 1: ...s warranty without notice In that Hobbico has no control over the final assembly or material used for final assembly no liability shall be assumed nor accepted for any damage resulting from the use by the user of the final user assembled product By the act of using the user assembled product the user accepts all resulting liability If the buyer is not prepared to accept the liability associated wi...

Page 2: ... a temperamental engine or constant troubleshooting to figure out how to get the model to fly Under the guidance of an experienced flight instructor all you ll have to do is concentrate on learning to fly And after you ve mastered the NexSTAR Select the engine and radio may be transferred to your next model There are two parts to this manual The first part a seven page Assembly section guides you ...

Page 3: ...In those instances the written instructions should be considered as correct 3 You must check the operation of the model before every flight to insure that all equipment is operating and that the model has remained structurally sound Be sure to check clevises or other connectors often and replace them if they show any signs of wear or fatigue This is a new engine developed specifically for high per...

Page 4: ...rvo the incorporated wing dowel holds the wing in place and it holds and aligns the wing bolt to the PivotFlex Wing Mounting System Joining the wing halves and wing installation on the fuselage has never been easier These are the extensions that are installed at the leading edge near the tips of the wings These extensions were developed by NASA National Aeronautics and Space Administration to help...

Page 5: ...of rubber bands The new system allows the wing to move under sudden loads such as a wing tip hitting the ground and will release the wing from the airplane under extreme loads such as a crash all that while looking great The EasyAlign Tail Mounting System aligns the stabilizer with the fuselage and fin while tightening the tail bolts The tail bolts slide into blocks in the fuselage under the stabi...

Page 6: ...of flight without any risk The physics of RealFlight are so close to reality that you will feel like you are flying the real model The RealFlight NexSTAR Edition also lets you practice with your transmitter and all the controls on it Learn to fly with RealFlight practice new maneuvers and once you feel confident get out there and enjoy your Hobbico NexSTAR Select Before starting to build inspect t...

Page 7: ...ge inside the fuselage Note Charging time of fully depleted receiver and transmitter batteries is about 15 hours Both batteries should be charged overnight before every flying day A fully charged set of batteries should allow you to make three full flights before needing to recharge the batteries again In any case you should always check battery voltage before flying and never fly with a receiver ...

Page 8: ...to the wing using three 4 x 1 4 6mm screws The inner end of the flap should align with the end of the aileron 6 Install the other flap onto the other wing using three more 4 x 1 4 6mm screws The wing is now complete For this section you will need 1 Slide one of the main landing gear legs into the landing gear slot as shown above Push it in until you hear a click or until it does not slide in any m...

Page 9: ...te If your landing gear does not insert easily in the fuselage or it does not lock in clean up any glue or paint blobs that may be on the gear or in the mounting mechanism Insert the gear again and make sure it does lock in Note If your landing gear legs spread after a hard landing remove the legs from the airplane and bend them back to the correct position with a vise Do not try to straighten the...

Page 10: ...ngs and through the stab holes This will align the assembly 4 Tighten the bolts until they fit snug against the bottom of the fuselage Note Over tightening these bolts will damage the nylon threads and it may cause in flight failure Do not over tighten these bolts 5 Connect both the elevator and rudder pushrod clevises to their control horns Use the second hole from the outer tip of the control ho...

Page 11: ...o the sides of the fuselage as seen in the image below If necessary unscrew the servo arm and center them as shown in the image below Remember to replace the screw 3 Make certain the pushrods are connected to the servo arms as follows The elevator pushrod should be in the second hole out on the servo arm the rudder pushrod should be in the third hole out on the servo arm and the aileron pushrods n...

Page 12: ...ntered with the stab disconnect the clevis from the elevator control horn Holding the end of the pushrod with pliers screw or unscrew the clevis as necessary until the elevator is centered when reconnected to the pushrod 6 Center the rudder and ailerons by adjusting the clevises on the pushrods as necessary 7 Once the rudder is centered if necessary center the nose wheel by loosening the screw in ...

Page 13: ...on manual to identify and operate the reversing switch 2 Move the right stick down and observe the direction the elevator moves Moving the right stick down should make the elevator move up 3 Move the left stick to the right and observe the rudder Moving the stick to the right should make the rudder and the nose wheel move to the right If necessary use the reversing switches on the transmitter to m...

Page 14: ... at a low RPM This will keep the engine running when the throttle stick is pulled all the way down toward you for landing When it is time to shut the engine off after landing move the trim lever down to close the carburetor the rest of the way Here s how to set up the carburetor 1 With the transmitter and receiver on move the throttle trim lever and the throttle stick all the way down 2 Observe th...

Page 15: ...y is the point at which the model balances when lifted under the wing If the C G is too far forward the model will be nose heavy and could be difficult to takeoff and land and lose some of its self correcting tendencies If the C G is too far aft the model will be tail heavy and the controls may be too sensitive making the model too difficult to control especially for an inexperienced pilot Follow ...

Page 16: ...hen the sun is at least 25 degrees above the horizon and on partially cloudy days or overcast Extremely strong sunlight or light contrast between the sky and the ground may prevent the module from working at its optimum The unit s performance decreases as the sun gets lower on the horizon i e in the early morning or late in the evening and on extremely bright days You should also be cautious when ...

Page 17: ...thout AFS It is important to check your batteries voltage before every flight and to recharge them if necessary As a rule of thumb and after many hours of testing our prototypes were never flown with a receiver battery voltage less than 5 0V Some radio manufacturers recommend a cut off voltage of 4 8V but remember that the AFS is making your servos draw current from your battery much more often th...

Page 18: ...ft aileron should move up and right aileron down Outdoor test 1 Turn on the transmitter and then the receiver 2 Point the nose of the airplane up The elevator should move down 3 Point the nose of the airplane down The elevator should move up 4 With the airplane level point the right wing up The right aileron should move up and the left aileron should move down LEFT AILERON UP RIGHT AILERON UP 18 ...

Page 19: ...fore you go flying In addition the equipment required to fuel and start the engine mentioned near the beginning of the manual you should start a collection of tools that may be required for adjustments and maintenance at the flying field Following is a list of the most important items Glow plug OS 8 recommended OSMG2691 Propeller HCAA3744 Selecting the correct propeller for an airplane is very imp...

Page 20: ... stand by the model and tell you what the controls are doing to confirm that they operate correctly You should be able to walk approximately 100 feet from the model and still have control without any glitching or inadvertent servo operation 2 If everything operates correctly return to the model and start the engine Perform the range check with your assistant holding the plane with the engine runni...

Page 21: ...flooded Another sign of this is having fuel exit through the muffler while trying to start the engine In this situation raise the nose of the airplane to clear the muffler of fuel and then remove the glow plug and rapidly spin the propeller through compression Keep spinning the propeller until no more fuel comes out of the muffler or glow plug hole Replace the plug and try to start the engine agai...

Page 22: ...not roll straight down the runway shut the engine off and adjust the nose gear pushrod as necessary Do not use the rudder trim to correct the nose wheel because this will also affect the rudder Note Crosswinds may affect the direction the model rolls so this test should be done in calm conditions or with the model facing directly into the wind If possible takeoff directly into the wind If you are ...

Page 23: ...apply up elevator but not so much that the airplane will climb Continue to apply up elevator while the plane descends until it gently touches down The NexSTAR Select has been designed to make steep landing approaches so that the landing approach is short and easy The Speed Brake Training Flaps excel at maintaining flying speed even in steep dives and when the airplane is leveled out they also help...

Page 24: ...an do to improve the high speed and aerobatic performance of the Hobbico NexSTAR Select is to remove the SpinControl Airfoil Extensions These extensions at the leading edge of the wings are held in place with tape that can be carefully removed Once you remove these extensions you will need to re trim your elevator to align it with the stabilizer The SpinControl Airfoil Extensions produce the oppos...

Page 25: ...leron control horn not included on the aileron as shown above Make sure you use thin CA to reinforce the holes in the aileron 5 Cut the servo arm as shown above Use a 6 152mm pushrod a clevis clevis retainer and Faslink to make the aileron pushrod necessary 6 Set up your new dual servos on your radio to have the same aileron throw as the original airplane Center the servo arms and install the serv...

Page 26: ...n as shown above 4 Bend the second pushrod as shown above and connect it to the first with two 5 32 4mm wheel collars Tighten the two 6 32x1 4 6 4mm socket head cap screws to secure the two flap pushrods together as shown above 5 The flaps should only be able to move down 1 2 13mm There is no up movement for the flaps Flap installation is finished Note To install dual servo and flaps you will need...

Page 27: ...dent that the Hobbico NexSTAR is the best almost ready to fly trainer available that we make this guarantee You will successfully learn how to fly with the Hobbico NexSTAR or we will replace it with your choice of any Hobbico trainer of up to equal value All we ask is that you learn to fly under the supervision of a qualified club designated instructor follow normal safety precautions fly at an AM...

Page 28: ...28 Correct Angle Rods Fin ...

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