Black Horse Model BH 74 Instruction Manual Book Download Page 13 | Manualshive

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13

GLASAIR -

Item code: BH74

.

Instruction 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 screw.

Right side

3 x 12mm

Bottom side.

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Summary of Contents for BH 74

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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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