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Instruction Manual book

Made in Vietnam.

Item code: BH85-A.

95% ALMOST READY TO FLY

ALL BALSA - PLY WOOD CONSTRUCTION.

COVERED WITH ORACOVER.

 

Wingspan: 1,500mm 59.06 in).

 

Length: 1,330mm (52.36 in).

 

Weight: 4.7kg (10.34 lbs).

 

Wing area: 74dm

2

.

 

Wing loading: 64 g/dm

2

.

 

Wing type: Naca Airfoil.

 

Gear type: Aluminium Hi-grade for 

main gear and spring wire for tail gear

(included).

Parts listing required (not included).

 

Radio: 06 channels.

SPECIFICATION

PITTS

 

Servo: 07 servos.

 

Servo mount: 42mm x 21mm.

 

Engine: 120 - 2 stroke; O.S.GT 22cc Gas.

 

Motor: Brushless outrunner 1800-2300W, 450KV. 

 

Propeller: Suit with your engine.

Recommended motor and battery set up (not included):

 

Motor:  RIMFIRE.120.

 

Lipo cell: 6 cells 4,000-5,000mAh.

 

ESC: 80A.

 

Receiver battery: 4.8-6V/ 1200-2000mAh NiMH.

New improvement.

Summary of Contents for Pitts BH85-A

Page 1: ...r type Aluminium Hi grade for main gear and spring wire for tail gear included Parts listing required not included Radio 06 channels SPECIFICATION PITTS Servo 07 servos Servo mount 42mm x 21mm Engine...

Page 2: ...bilizer with pre installed rud der 1 Horizontal stabilizer with pre installed elevator halves To avoid scratching your new airplane do not unwrap the pieces until they are needed for assembly Cover yo...

Page 3: ...e film covering due to major fluctuations in weather conditions temperature humidity etc in rare cases you may even find a slight warp in a component These minor faults are in the nature of film cover...

Page 4: ...C A to center of hinge on both sides Temporary pin to keep hinge centered 1 INSTALLING THE AILERONS I AILERON Test fit the ailerons to the wing with the hinges If the hinges don t remain centered stic...

Page 5: ...ock of wood for each of the four mount ing screws provided with the servo Electric wire Drill a hole 1 5mm 2x10mm Secure 5 Repeat the procedure to install the aileron servos in the other wing half 3 I...

Page 6: ...out 6mm beyond the blend Flaslink Pushrod wire Control horn Repeat the procedure to install the opposite wing half See pictures below See pictures below II INSTALLING THE ENGINE MOUNT OPTION 1 ELECTRI...

Page 7: ...nk and move freely inside the tank Connect one end of the line to the weighted clunk and the other end to the nylon pick up tube in the stopper 3 Carefully bend the second nylon tube up at a 45 degree...

Page 8: ...silicon sealer to the forward area of the tank where it exits the fuselage behind the engine mounting box and to the rear of the tank at the forward bulkhead Do not secure the tank into place permanen...

Page 9: ...he fuselage by taking measurements but don t glue anything yet B B A A 3 Slide the cowl back over the engine and secure it in place using four wood screws See picture below 4 Install the muffler and m...

Page 10: ...n cutting through the covering to remove it cut with only enough pressure to only cut through the covering it s self Cutting into the balsa structure may weaken it This could lead to possible failure...

Page 11: ...o system Bottom side M2 Lock nut M2 Elevator pushrod Bottom side Elevator pushrod Bend 90 degree Top side C A glue Bottom side C A glue Elevator servo Secure Cut Flaslink Pushrod wire servo arm Secure...

Page 12: ...install as same as the way of elevator pushrod Please see pictures below Rudder servo install as same as method of elevator servo Rudder control horn install as same as method of elevator control hor...

Page 13: ...the rudder hinge line and the tail wheel bracket should be centered on the plywood plate VIII MOUNTING THE TAIL WHEEL BRACKET Aluminium landing gear Collar M5 nut Flat washer 3 x 12mm 2 Mark the loca...

Page 14: ...the model 4 Using a 2mm drill bit drill a hole through the side of the fuselage near the receiver for the antenna to exit X INSTALLING THE RECEIVER AND BATTERY Locate the aluminium wing dihedral brace...

Page 15: ...is aligned with the rear edge of the cockpit opening Use canopy glue to secure the canopy to the canopy hatch Use low tack tape to hold the canopy in position until the glue fully cures Wrap the tape...

Page 16: ...SPINNER BALANCING 1 It is critical that your airplane be balanced cor rectly Improper balance will cause your plane to lose control and crash THE CENTER OF GRAVITY IS LOCATED 106MM BACK FROM THE LEADI...

Page 17: ...the airplane upside down Place your fingers on the masking tape and carefully lift the plane Accurately mark the balance point on the top of the wing on both sides of the fuselage The balance point is...

Page 18: ...to an explosion Keep all onlookers especially small children and animals well back from the area of operation This is a flying aircraft which will cause serious injury in case of impact with a person...

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