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PITTS

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ITEM CODE: BH85

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Instruction Manual

This instruction manual is designed to help you build a  great flying aeroplane. Please read this
manual thoroughly before starting assembly of your  

PITTS

. Use the parts listing below to identify

all parts.

WARNING

Please be aware that this aeroplane is not a toy and if assembled or used incorrectly it is
capable of causing injury to people or property. WHEN YOU FLY THIS AEROPLANE YOU
ASSUME ALL RISK & RESPONSIBILITY.

If you are inexperienced with basic R/C flight we strongly recommend you contact your R/C supplier
and join your local R/C Model Flying Club. R/C Model Flying Clubs offer a variety of training
procedures designed to help the new pilot on his way to successful R/C flight. They will also be able
to advise on any insurance and safety regulations that may apply.

TOOLS & SUPPLIES NEEDED

Thick cyanoacrylate glue.

30 minute epoxy.

5 minute epoxy.

Hand or electric drill.

Assorted drill bits.

Modelling knife.

Straight edge ruler.

2mm ball driver.

Phillips head screwdriver.

220 grit sandpaper.

90° square or builder’s triangle.

Wire cutters.

Masking tape & T-pins.

Thread-lock.

Paper towels.

Some more parts.

HARDWARE PACK

COWLING.
Landing gear.....

To avoid scratching  your new airplane, do not
unwrap the pieces until they are needed for
assembly. Cover your workbench with an old
towel or brown paper, both to protect the air-
craft and to protect the table. Keep a couple of
jars or bowls handy to hold the small parts af-
ter you open the bag.

Please trial fit all the parts. Make sure you have
the correct parts and that they fit and are
aligned properly before gluing! This will assure
proper assembly.

 

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  ARF is hand made

from natural materials, every plane is unique
and minor adjustments may have to be made.
However, you should find the fit superior and
assembly simple.
The painted and plastic parts used in this kit
are fuel proof. However, they are not tolerant
of many harsh chemicals including the follow-
ing: paint thinner, C/A glue accelerator, C/A glue
debonder and acetone. Do not let these chemi-
cals come in contact with the colors on the
covering and the plastic parts.

PARTS LISTING

FUSELAGE ASSEMBLY

(1) Fuselage.

WING ASSEMBLY

(1) Right wing half with pre-installed
aileron.

(1) Left wing half with pre-installed
aileron.

Tail section assembly

(1) Vertical stabilizer with pre-
installed rudder.

(1) Horizontal stabilizer with pre-
installed elevator halves.

                       SUGGESTION

                              NOTE.

Содержание PITTS

Страница 1: ...SPECIFICATION Wingspan 1 500 mm 59 06 in Length 1 330 mm 52 36 in Weight 4 7 kg 10 34 Lbs Radio 6 channels Servo 7 servos Engine 120 2stroke Instruction Manual book Made in Vietnam...

Страница 2: ...ins Thread lock Paper towels Some more parts HARDWAREPACK COWLING Landing gear To avoid scratching your new airplane do not unwrap the pieces until they are needed for assembly Cover your workbench wi...

Страница 3: ...n to the warp and apply warm air to remove the creases from the covering Caution do not heat the film more than is absolutely necessary If the air or the iron is too hot the film may melt and holes ma...

Страница 4: ...lue C A glue Bottom side Aileron 4 Plastic enginemount C A glue 5 Covering of main gear 7 Plastic for rudder 10 Wing struts sets INSTALLING THEAILERON SERVO CONTROL HORN Top side Aileron 1 1 2 3 4 6 7...

Страница 5: ...ounting screws provided with the servo 3 Using the thread as a guide and using masking tape tape the servo lead to the end of the thread carefully pull the thread out When you have pulled the servo le...

Страница 6: ...6 PITTS ITEM CODE BH85 Instruction Manual Installing the aileron linkages as pictures below Aileron control horn INSTALLING THE AILERON LINKAGES Control horn of the aileron M 2 M2 lock nut 75mm...

Страница 7: ...CODE BH85 Instruction Manual Repeat the procedure for the right lower wing half C A glue Bottom side Parts requirement See pictures below WING STRUT INSTALLATION UPPER WING C A glue C A glue C A glue...

Страница 8: ...8 PITTS ITEM CODE BH85 Instruction Manual Secure 2 x 10mm Repeat the procedure for the right lower wing half Top of right...

Страница 9: ...VES UPPER MAIN WING Secure Drill a hole 3mm diameter 2 Test fit the aluminium dihedral brace into each wing half The brace should slide in easily Bottom side of left upper a wing Aluminium brace Left...

Страница 10: ...vent tube to the fueling valve INSTALLING THE STOPPER ASSEMBLY 1 The stopper has been pre assembled at the factory 2 Using a modeling knife cut one length of silicon fuel line the length of silicon fu...

Страница 11: ...tubes and 1 line to the fuel pickup tube in the stopper 8 Feed three lines through the fuel tank compartment and through the pre drilled hole in the firewall Pull the lines out from behind the engine...

Страница 12: ...re has been 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...

Страница 13: ...or muffler clearance Connect the fuel and pressure lines to the carburetor muffler and fuel filler valve 3 Slide the cowl back over the engine and secure it in place using four wood screws See picture...

Страница 14: ...tal 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 mate rial from th...

Страница 15: ...Mount the servo to the tray using the mounting screws provided with your radio sys tem 1 Install the rubber grommets and brass collets into the elevator servo Test fit the servo into the servo tray S...

Страница 16: ...e stabilizer and remove it 3 Mark the shape of the vertical on the left and right sides onto the horizontal stabilizer using a left tip pen Remove covering Mark point Bottom side C A glue C A glue C A...

Страница 17: ...ng 6 After the epoxy has fully cured remov the masking tape or T pins used to hold the stabilizer in place and carefully inspect the glue joints Use more epoxy to fill in any gaps that were not filled...

Страница 18: ...lease see pic tures below Control horn of elevator ELEVATOR CONTROL HORN INSTALLATION ELEVATOR PUSHROD INSTALLATION 3mm x 40mm Nilon control clasp M3 lock nut M2 M2 lock nut Elevator and rudder pushro...

Страница 19: ...19 PITTS ITEM CODE BH85 Instruction Manual E l e v a t o r pushrod E l e v a t o r pushrod Secure Elevator servo Secure T hr ot tle se rv o Elevator servo Rudder servo Throttle pushrod...

Страница 20: ...the vertical on the left and right side on the rudder using a felt tip pen Also carefully remove the covering from the horizontal fin as below the lines which you drew as same picture below 4 Now remo...

Страница 21: ...al Stabilizer Horizontal Stabilizer Epoxy glue Epoxy glue C A glue Hinge slot 5 Put the vertical stabilizer back in place Using a triangle check to ensure that the vertical stabilizer is aligned 90 de...

Страница 22: ...y 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 towel and rubbing alco...

Страница 23: ...l as same as the way of aileron pushrod 1 Set the tail wheel assembly in place on the plywood plate The pivot point of the tail wheel wire should be even with the rud der hinge line and the tail wheel...

Страница 24: ...bracket in place using three 3mm x 12mm wood screws Be careful not to overtighten the screws 2 Using a pen mark the locations of the two mounting screws Remove the tail wheel bracket and drill 1mm pi...

Страница 25: ...ITTS ITEM CODE BH85 Instruction Manual PARTS REQUIRED INSTALLING THE MAIN LANDING GEAR Drill a hole 2mm diametter C A glue Secure C A glue 1a 1b C A glue 1b 1a C A glue 1a 3 x 15mm 2 a 1b 1a 2 b 5 3 1...

Страница 26: ...modeling knife Use a 2mm drill bit and drill out the two mounting holes through the fuselage side 2 Secure the switch in place using the two machine screws provided with the radio system INSTALLING TH...

Страница 27: ...ubber band or masking tape to hold the foam in place Do not permanently secure the receiver and battery until after balancing the model 3 Position the battery pack and receiver behind the fuel tank Us...

Страница 28: ...Manual 4 x 30mm Secure Drill a hole 3mm diameter Drill a hole 3mm diameter Installing the fuselage hatch as same as pic ture below See picture wing attach to fuselage WING ATTACHMENT Wing bolt Secure...

Страница 29: ...29 PITTS ITEM CODE BH85 Instruction Manual Secure Secure 2 2 1 3 3 3 x 12mm Secure...

Страница 30: ...y shifting the balance up to 10mm forward or back to change the flying characteristics Moving the balance forward may improve the smooth ness and arrow like tracking but it may then require more speed...

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