Phase 3 J-3 CUB 370 RTF Operating Instructions Manual Download Page 3

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INTRODuCTION

Thank  you  for  purchasing  the  Phase  3  J-3  Cub  370  RTF.    Before  completing  the  final  assembly  of  your  new  airplane, 
please carefully read through these operating instructions in their entirety.  Doing so will ensure your success the first time 

around!

Before beginning assembly, remove the different parts from the box and use the photos below to verify that your kit contains all of 
the correct parts.  If your kit is missing a part or if a part appears to be damaged, please contact us immediately, using the Customer 

Service Information on page # 2.

PARTS IDeNTIFICATION

Transmitter and Flag

Flight Battery

Horizontal & Vertical Tails

AC Charger

Wing Assembly

Fuselage Assembly

NOT SHOWN: SMALL WOOD SCReWS (12)

Landing Gear

Wing Struts and Clips (4)

Propeller and Spinner

Phase 3 is proud to present the J-3 Cub.  This trainer aircraft is modeled after aircraft from the Golden Age of Aviation and made for 

new flyers to learn and master real radio control flight.  You'll find your new Phase 3 J-3 Cub gentle in the air and good looking in the 
Hangar.  And most important, you'll be flying with confidence in no time.  Get a Cub, Get Flying, and Enjoy Model Aviation.

 

Molded from Durable Plastic and Foam

 

Preinstalled 4Ch FM  27MHz (USA) Radio Control System

     

 

35MHz (EU)

 

  Three-Channel Control - Elevator, Rudder and Throttle

 

Rechargeable NiMH Flight Battery

 

AC Charger and 2V DC Fast-Charger

  Direct Drive 370 Size Motor with Propeller and Safety Spinner

  Easy-to-Access Flight Battery

Wing Brace and Bands (2)

DC Fast-Charger

Summary of Contents for J-3 CUB 370 RTF

Page 1: ...gr Wing Loading 13 Ounces Per Square Foot 39 5gr dm2 Molded from Durable Plastic and Foam Preinstalled 4Ch FM 27MHz USA Radio Control System 35MHz EU Three Channel Control Elevator Rudder and Throttle...

Page 2: ...the flight battery may occur To prevent the flight battery from overheating during the charging process allow the flight battery to completely cool before recharging it Always completely discharge th...

Page 3: ...Assembly Fuselage Assembly Not Shown SmalL wood ScrewS 12 Landing Gear Wing Struts and Clips 4 Propeller and Spinner Phase 3 is proud to present the J 3 Cub This trainer aircraft is modeled after air...

Page 4: ...rsing Switches These switches allow you to electronically change the direction the servos move Throttle Control Stick This stick can move both right and left and up and down at the same time and is us...

Page 5: ...e airplane forward Vertical Tail Provides stability for the airplane during turns Wing The wing has a special airfoil shape and provides the main source of lift for the airplane The flight battery inc...

Page 6: ...CUB 370 RTF Step 1 Installing the Transmitter Batteries Continued On Next Page Step 2 Installing the horizontal tail Carefully slide the horizontal tail into the slot in the back of the fuselage When...

Page 7: ...nt portion of the vertical tail down into the mounting slot in the fuselage Push the vertical tail down in position When aligned properly the tab in the base of the vertical tail should fit into the n...

Page 8: ...the radio system later PRO TIP Carefully snap the plastic clevis on the pushrod wire into the outermost hole in the rudder control horn We suggest installing the clevis into the outermost hole in the...

Page 9: ...it firmly onto the front of the propeller The inside of the rubber safety spinner is molded to fit securely over the hex nut and threaded propeller shaft Step 7 Installing the wing Set the wing onto t...

Page 10: ...are four plastic wing struts included There are two longer ones for the front and two shorter ones for the rear When installing them in the next few procedures make sure to install the two front wing...

Page 11: ...ll need to make sure that the transmitter is turned on Turn on the transmitter The needle in the voltage meter should move into the silver safe area If it doesn t replace the batteries with a fresh se...

Page 12: ...he flight battery into the connector that is inside the fuselage When plugged in properly the connectors should click together IMPORTANT As a safety feature the connectors can only be plugged in one w...

Page 13: ...to the left The rudder should move left If the rudder does not move in the correct direction flip the CH 1 servo reversing switch on the front of the transmitter as shown PRO TIP Looking from the back...

Page 14: ...ips Always run the motor until it stops before recharging the flight battery This will ensure that the battery is properly discharged Charge time using the AC wall charger for a fully discharged batte...

Page 15: ...you become a proficient flyer you should always plan on flying your airplane when there s no wind We strongly sug gest waiting for a calm day If it s windy and you attempt to fly it will only make lea...

Page 16: ...will help ensure your success Some Things to Remember With the flight battery fully charged you can expect anywhere from 4 6 minutes of flight time so plan your landing accordingly Make sure that your...

Page 17: ...e ground making sure that the airplane is pointing directly into the wind Slowly push the throttle control stick forward until the motor is running at full power The airplane will quickly begin to acc...

Page 18: ...direction you want move the control stick gently in the opposite direction to level the wing then allow the control stick to return to center The longer you hold the control stick over the tighter th...

Page 19: ...ottle Hold the parts together and in alignment until the glue fully cures Apply a strip of clear Scotch tape over the seams to strengthen the joint even more It is very important that you use no solve...

Page 20: ...ally the transmitter charger and flight battery Do not allow any of the electrical components to get wet or damage may occur Periodically double check that the propeller nut is tight Check the propell...

Page 21: ...rystal Set Ch 3 PH109024 27MHz FM Crystal Set Ch 4 PH109025 27MHz FM Crystal Set Ch 5 PH109026 27MHz FM Crystal Set Ch 6 PH109028 Motor Controller Sorry No Photo Available PH109030 Receiver w o Crysta...

Page 22: ...ter trim tab as control input described on page 19 5 Airplane constantly climbs or A You are flying in too much wind A Fly when there is no wind descends without any B The airplane is out of trim adju...

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