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27

GLASAIR - 

Item code: BH74

 .

                                                             

Instruction Manual

4

 

1) Completely charge your transmitter and

receiver batteries  before your first day of fly-
ing.

4

 

2) Check every bolt and every glue joint in

your plane to ensure that everything is tight
and well bonded.

4

 

3)  Double check the balance of the

airplane.

4

 

4) Check the control surface.

4

 

5) Check the receiver antenna . It should

be fully extended and not coiled up inside the
fuselage.

4

 

6) Properly balance the propeller.

We wish you many  safe and enjoy-

able flights with your GLASAIR.

 Ailerons :  10mm up     10mm down

Flap       :                       20mm down

Elevator :  8mm up     8mm down

 Rudder :   15mm right   15mm left

4

 

1) We highly recommend setting up a

plane using the control throws listed.

4

 

2) The control throws should be meas-

ured at the widest point of each control sur-
face.

4

 

3) Check to be sure the control surfaces

move in the correct directions.

*If possible, first attempt to balance the model
by  changing the position of the  receiver bat-
tery and  receiver. If you are unable to obtain
good balance by doing so, then it will be nec-
essary to add weight to the nose or tail to
achieve the proper balance point.

  

 With the wing attached to the fuselage, all

parts of the model installed ( ready to fly), and
empty fuel tanks, hold the model at the
marked balance point with the stabilizer level.

   

Lift the model. If the tail drops when you

lift, the model is “tail heavy” and you must
add weigh* to the nose. If the nose drops, it
is “nose heavy” and you must add weight* to
the tail to balance.

Accurately mark the balance point on the top
of the wing on both sides of the fuselage. The
balance point is located 

85mm

 back from the

leading edge. This is the balance point at
which your model should balance for your first
flights. Later, you may wish to experiment by
shifting the balance up to 10mm forward or
back to change the flying characteristics.
Moving the balance forward may improve the
smoothness and arrow- like tracking, but it
may  then require more speed for take off
and make it more difficult to slow down for
landing. Moving the balance aft makes the
model more agile with a lighter and snappier
”feel”. In any case, please start at the loca-
tion we recommend .

1

 

1) It is critical that your airplane be bal-

anced correctly. Improper balance will cause
your plane to lose control and crash.

THE CENTER OF GRAVITY IS LOCATED

85MM

 BACK FROM THE LEADING EDGE

OF THE WING.

1

 

2) Mount the wing to the fuselage. Using a

couple of pieces of masking tape, place them
on the top side of the wing 

85mm

 back from

the leading edge, at the fuselage sides.

1

 

3.  Turn the airplane upside down. Place

your fingers on the masking tape and care-
fully lift the plane .

PRE-FLIGHT CHECK.

85mm

10mm

10mm

20mm

8mm
8mm

15mm

15mm

BALANCING.

CONTROL THROWS.

Содержание BH 74

Страница 1: ...ingspan 1 860 mm 73 23 in 1 Length 1 470 mm 57 87 in 1 Weight 5 2 kg 11 44 lbs Parts listing required not included 1 Radio 06 channels 1 Servo 08 servos 1 Engine 91 120 2 stroke Instruction Manual Boo...

Страница 2: ...ins 1 Thread lock 1 Paper towels Some more parts HARDWARE PACK COWLING Landinggear To avoid scratching your new airplane do not unwrap the pieces until they are needed for assembly Cover your workbenc...

Страница 3: ...er with your fingers Keep loose clothing and wires away from the propeller Do not start the engine if people are near Do not stand in line with the side of the propeller Make engine adjustments from b...

Страница 4: ...hinge on both sides Bottom side Servo tray Remove covering Secure 6 Spinner 5 Plastic enginemount 2 Wheels 4 Fuel tank 10 Tail gear set 3 Wheel pants 7 Plastic parts for landing gear fuselage 1 Alumi...

Страница 5: ...d to the end of the thread carefully pull the thread out When you have pulled the servo lead out re move the masking tape and the servo lead from the thread o 5 Instal servo tray with aileron servo in...

Страница 6: ...all the servo arm onto the servo The servo arm should be perpen dicular to the servo and point toward the mid dle of the wing 1 2 Attach the clevis to the outer hole in the control horn 1 4 Locate one...

Страница 7: ...ecure 2 INSTALLING THE FLAP CONTROL HORN Drill a hole 1 7mm diameter Flap control horn Flap control horn Install flap control horn as same as picture below A B Epoxy PLUS glue Flap 1 INSTALLING THE FL...

Страница 8: ...below Cut Repeat the procedure for the other wing half INSTALLING THE ENGINE MOUNT Flap Bottom side Installing the Flap linkages as pictures below 3 INSTALLING THE FLAP LINKAGES M2 lock nut Snap keepe...

Страница 9: ...ther end to the nylon pick up tube in the stop per When the stopper assembly is installed in the tank the top of the vent tube should rest just below the top surface of the tank It should not touch th...

Страница 10: ...ting box and to the rear of the tank at the forward bulkhead Do not secure the tank into place perma nently until after balancing the airplane You may need to remove the tank to mount the battery in t...

Страница 11: ...pre bend in to a Z bend at the factory This Z bend should be inserted into the throttle arm of the engine when the engine is fitted onto the engine mount Fit the engine to the engine mount using the...

Страница 12: ...hould be positioned so the crankshaft is in nearly the middle of the cowl opening Hold the cowl firmly in place using pieces of masking tape 1 3 Slide the cowl back over the engine and secure it in pl...

Страница 13: ...tion Manual INSTALLING THE SPINNER Install the spinner backplate propeller and spinner cone The spinner cone is held in place using two 3mm x 8mm machine screws Secure Front view Top side Machine scre...

Страница 14: ...adjustable metal connector through the third hole out from the center of one servo arm enlarge the hole in the servo arm using a 2mm drill bit to accommodate the servo connector Remove the excess mat...

Страница 15: ...ng knife cut away the cov ering from the fuselage for the stabilizer and remove it 1 3 Mark the shape of the vertical on the left and right sides onto the horizontal stabilizer using a felt tip pen El...

Страница 16: ...a guide carefully remove the covering from between them using a modeling knife When cutting through the covering to re move it cut with only enough pressure to only cut through the covering it s self...

Страница 17: ...Manual C A glue Elevator and rudder pushrod install as same as the way of aileron pushrod ELEVATOR PUSHROD INSTALLATION E l e v a t o r pushrod E l e v a t o r pushrod Bottom side bend 90 degree Cut M...

Страница 18: ...and remove the film of the rud der Just as you did with the horizontal stabi lizer make sure you only press hard enough to cut the film not the balsa rudder 1 Also carefully remove the covering from t...

Страница 19: ...ing area Apply epoxy to the lower rudder hinge Set the stabilizer in place and re align Double check all of your measurements once more before the epoxy cures Remove any excess epoxy using a paper tow...

Страница 20: ...cket should be centered on the plywood plate Rudder push pull cable MOUNTING THE TAIL WHEEL BRACKET 1 1 Rudder push pull system install as same as picture below RUDDER CABLE INSTALLATION Assemble then...

Страница 21: ...d drill 1mm pilot holes at the loca tions marked 1 3 Secure the tail wheel bracket in place using three 3mm x 15mm wood screws Be careful not to overtighten the screws Mark point Secure Mark point Sec...

Страница 22: ...22 GLASAIR Item code BH74 Instruction Manual 1 2 Using the hardware provided mount the main landing gear to the fuselage Cut Secure Mark point Secure Cut...

Страница 23: ...se during operation Repeat the process for the other wheel C A glue 1 1 Cut out the switch hole using a modeling knife Use a 2mm drill bit and drill out the two mounting holes through the fuselage sid...

Страница 24: ...in the aileron servo lead easier when you are installing the wing Plug the battery pack lead into the switch 1 2 Wrap the receiver and battery pack in the protective foam to protect them from vi brati...

Страница 25: ...e picture wing attach to fuselage Installing the fuselage hatch as same as pic ture below Left side Wingbolt Secure Wing bolt 6x45mm Secure 1 3 Insert two wing panels as pictures below See picture bel...

Страница 26: ...26 GLASAIR Item code BH74 Instruction Manual Cut C A glue Insert and secure C A glue...

Страница 27: ...nce point with the stabilizer level Lift the model If the tail drops when you lift the model is tail heavy and you must add weigh to the nose If the nose drops it is nose heavy and you must add weight...

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