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RADIAL ROCKET                 Item code: BH155

.                     

Instruction Manual

necessary. If the air or the iron is too hot, the film may 

melt and holes may be formed.

This model is highly pre-fabricated and can be built in 

a very short time. However, the work which you have to 

carry out is important and must be done carefully. The 

model will only be strong and fly well if you complete 

your  tasks  competently  -  so  please  work  slowly  and 

accurately.

When self-tapping screws have to be screwed into 

wood,  apply  a  little  white  glue  to  prevent  them 

shaking loose: just squirt white glue into the hole 

and fit the screw.

Caution:

 

This model is not a toy! 

If you are a beginner to this type of powered model, 

please  ask  an  experienced  model  flyer  for  help  and 

support. If you attempt to operate the model without 

knowing  what  you  are  doing  you  could  easily  injure 

yourself  or  somebody  else.  Please  keep  your  safety 

and well-being in mind at all times.

Important:

 Before you start construction

Even if you have built a large number of RC models 

please read right through these instructions and check 

all the kit components against the parts list. We have 

taken great trouble to keep construction as simple as 

possible, without making any compromises in the area 

of safety.

Note regarding the film covering

Minor  creases  or  bubbles  may  develop  in  the  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-covered built-up wooden 

structures, and can easily be corrected using a heat 

gun, as commonly used for modelling.

Creases:

      Blow warm air over the area and rub             

                     down with a soft cloth.

Wing wrap: 

Hold the panel twisted gently in

                             the opposite direction to the wrap,and  

                           apply warm air to remove the creases  

                    from the covering.

Caution! 

do not heat the film more than is absolutely 

 REPLACEMENT LARgE PARTS

+   This is not a toy.

+    Be  sure  that  no  other  flyers  are  using  your  radio 

frequency.

 +  Do not smoke near fuel.

 +  Store fuel in a cool, dry place, away from children 

and pets.

 +  Wear safety glasses. 

 +The glow plug clip must be securely attached to the 

glow plug.

 + Do not flip the propeller 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 behind the propeller 

only. Do not reach around the spinning propeller.

SAFETY PRECAUTION

A:   Fuselage.

B:   Wing panel (B1, B2).

C:   Horizontal stabilizer.

D:   Rudder.

E:   Aluminium wing dihedral brace.

B1

C

B2

E

K

D

A

G

G1

G2

G3

K:   Cowling.

G:  Cockpit fuselage.

F:   Wheel pants.

L:   Plastic parts for fairing.

N:   Decal sheet.

L

F

N

Summary of Contents for BH155

Page 1: ... 000 5 000mAh ESC 60A Receiver battery 6V 1200 2000mAh NiMH Wingspan 1 410mm 55 51in Length 1 235mm 48 62in Weight 3 3 2kg 6 6 7 04lbs Wing area 29 7dm Wing loading 104 5g dm Wing type Naca Airfoil Spinner 80mm Parts listing required not included Radio 05 channels Servo 07 servos Made in Vietnam 95 ALMOST READY TO FLY RADIAL ROCKET Item code BH155 Instruction Manual Book ALL BALSA PLY WOOD CONSTRU...

Page 2: ...LY 1 Vertical stabilizer with pre installed rudder 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 your workbench with an old towel or brown paper both to protect the aircraft and to protect the table Keep a couple of jars or bowls handy to hold the small parts after you open the bag ...

Page 3: ...te regarding the film covering Minor creases or bubbles may develop in the 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 covered built up wooden structures and can easily be corrected using a heat gun as commonly used for modelling Creases Blow warm air...

Page 4: ...on servos 1 Install the rubber grommets and brass eyelets on to the aileron servos 2 Using a modeling knife remove the covering from over the pre cut servo arm exit hole on the aileron servo tray hatch This hole will allow the servo arm to pass through when installing the aileron pushrods Servo tray Remove the covering Aileron Flap Bottom side REPLACEMENT SMALL PARTS 3 x 12mm 7 5 4x25mm 3 3x15mm 4...

Page 5: ... the slot and secure it by A B Epoxy glue 4 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 lead out remove the masking tape and the servo lead from the thread Drill a hole 1 5mm Secure Electric wire Electric wire 1 A B Epoxy glue 2 Push in Aileron control horn 4 installing the aileron link...

Page 6: ...posite wing half After both linkages are completed connect both of the aileron servo loads using a Y harness you have purchased Insert the 90 degree bend down through the hole in the control horn Install one nylon snap keeper over the wire to secure it to the control horn Install the control horn retaining screw and remove the masking tape from the aileron Flaslink Pushrod wire Control horn Bend a...

Page 7: ... Instruction Manual 3x15mm 3x10mm Secure Drill 5 holes 2 5mm Repeat the procedure to install the opposite gear IV INSTALLING THE engine mount OPTION 1 ELECTRIC MOTOR There are two options 1 Electric motor 2 Engine mount 4x60mm 3x15mm ...

Page 8: ...t about 8mm away from the rear of the tank 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 angle using a cigarette lighter This tube will be the vent tube to the muffler 4 Carefully bend the third nylon tube down at a 45 degree angle using a cigarett...

Page 9: ...easily 9 To secure the fuel tank in place apply a bead of 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 permanently until after balancing the airplane You may need to remove the tank to mount the battery in the fuel tank compartment See pictures below se...

Page 10: ...he cowl for muffler clearance Connect the fuel and pressure lines to the carburetor muffler and fuel filler valve 5 Drill four 2 5mm pilot holes through both the cowl and the side edges of the firewall Using a 3mm drill bit enlarge the four holes in the cowling IX INSTALLING horizontal STABILIZER Cowl area cutout for muffler Cowl area cutout for engine head 1 Elevator install as same as the way of...

Page 11: ...ottom of the tail plane Make sure you only cut with enough pressure to only cut through the film and not the wood Cutting into the balsa structure may weaken it This could lead to possible failure during flight Top side and bottom side Remove the covering ELEVATOR CONTROL HORN INSTALLATION Bottom side control horn 1 A B Epoxy glue 2 Push in Elevator control horn install as same as the way of ailer...

Page 12: ...d down at the mark made Cut off the excess wire leaving about 6mm beyond the blend 2 Insert the 90 degree bend down through the hole in the servo arm Install one nylon snap keeper over the wire to secure it to the arm Install the servo arm retaining screw VIi Rudder INSTALLATION Rudder install as same as the way of aileron Top side C A glue M2 Lock nut M2 Elevator pushrod Bottom side Silicone Tube...

Page 13: ...place on the ply wood plate The pivot point of the tail wheel wire should be even with the rudder hinge line and the tail wheel bracket should be centered on the plywood plate 2 Mark the locations of the two mounting screws Remove the tail wheel bracket and drill 2mm pilot holes at the locations marked 3 Secure the tail wheel bracket in place using three 3mm x 12mm wood screws Be careful not to ov...

Page 14: ... band or masking tape to hold the foam in place 5 Position the battery pack and receiver behind the fuel tank Use two tie wraps to hold the battery and receiver securely in place as pictures below Do not permanently secure the receiver and battery until after balancing the model 6 Using a 2mm drill bit drill a hole through the side of the fuselage near the receiver for the antenna to exit Locate t...

Page 15: ...efully lift the plane Accurately mark the balance point on the top of the wing on both sides of the fuselage The balance point is located 95mm 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 forwar...

Page 16: ...Rudder Low 20mm left right High 22mm left right CONTROL THROWS 10mm 10mm 16mm 8mm 8mm 20mm 20mm Flap control Aileron control Elevator control Rudder control PRE FLIGHT CHECK 1 Completely charge your transmitter and receiver batteries before your first day of flying 2 Check every bolt and every glue joint in your plane to ensure that everything is tight and well bonded 3 Double check the balance of...

Page 17: ...rs on a fire this can lead 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 or animal NEVER fly near power lines aerials or other dangerous areas including airports motorways etc ALWAYS adjust the engine from behind the propeller and do not allow an...

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