SIG KADET EP-42B Assembly Manual Download Page 12

MOUNTING THE PROPELLER AND SPINNER:

36) For this step you will need the propeller and rubber spinner

from the kit contents.

a) Remove the forward 3.5 mm lock nut and the washer from 

the motor shaft.  Slide the propeller in place onto the motor 
shaft  with  the  center  hex  relief  facing  back  to  the  motor.   
Press the propeller in place over the rear hex nut.  Place the 
10 mm washer onto the shaft and then thread the forward 
3.5 mm lock nut in place against the washer and propeller.  
Tighten the nut securely.

b) The  rubber  safety  spinner  can  now  be  pressed  firmly  in 

place onto the motor shaft and propeller.

DECAL APPLICATION:

The  decals  supplied  with  the  KADET  EP-42B  are  Mylar

®

stickers

with a self-stick adhesive.  They are not water slide decals.  Also,
these  decals  are  not  die-cut.    Each  design  must  be  cut  from  the

movement.    Now,  make  sure  the  motor  shaft  is  moving  in 
the correct direction.  When viewing the fuselage from the 
rear to the front - as if you were sitting in the cockpit - the 
motor shaft should turn clockwise, when throttle is applied.  
If your motor is turning in the wrong direction, you have the 
polarity  of  the  motor-to-ESC  or  ESC-to-battery  wiring 
reversed.

CONTROL THROWS:

34) The maximum distance that a control surface moves when

you move the transmitter stick to full deflection is normally called
the "control throw" or "control travel".  Most modern radio systems
allow you to adjust the control throw of the servos directly from the
transmitter.  This radio feature is usually referred to as EPA or End
Point Adjustment.  Use this feature to adjust the control movements
for the ailerons, elevator, and rudder of your KADET EP-42B.  The
following  control  movements  are  recommended  for  your  initial
flights.

RECOMMENDED INITIAL CONTROL THROWS

Ailerons: 5/16" (7.9 mm) Up 

5/16" (7.9 mm) Down

Elevator: 7/16" (11.1 mm) Up  

7/16" (11.1 mm) Down

Rudder:

5/8" (15.8 mm) Right   5/8" (15.8 mm) Left

NOTE:

These measurements are always taken at the widest part

of the control surface, at their trailing edges.

MOUNTING THE COWL:

35) From the kit contents, locate the plastic cowl and the four

remaining T2 x 6 mm PWA screws.  Note that the correct mounting
location  and  position  of  the  cowl  is  with  its  forward  face 
approximately 1/4" (6 mm) behind the front face of the 3.5 mm lock
nut and centered with the motor.

a) Slide the cowl in place over the motor and onto the front of 

the  fuselage.    Use  pieces  of  tape  to  secure  the  cowl  in 
place,  centered  with  the  motor  -  do  not  cover  the  four 
pre-drilled mounting holes.  The front of the cowl should be 
about 1/4" (6 mm) behind the front face of the 3.5 mm lock 
nut on the motor shaft.

b) Use a sharp pencil or a pointed object, such as an awl, to 

mark  or  punch  a  centered  mark  in  one  of  the  cowl 
mounting  hole.    Use  a  small  (.040")  dia.  bit  to  drill  a  pilot 
hole through the fuselage side at the mark just made.  Use 
a  screwdriver  to  install  one  of  the  T2  x  6  mm  PWA  cowl 
mounting screws into the drilled hole.  Check the front of the 
cowl to make sure it is still centered, and again, use a sharp 
object to mark the center of the opposite hole in the cowl.  
Drill a pilot hole and install another mounting screw.  Repeat 
this process until all four mounting screws are in place.

12

SAFETY WARNING:

With the propeller mounted to the motor,

it  is  very  important  that  you 

always

remain  aware  of  the 

position of the throttle stick on your transmitter whenever there
is a battery plugged into the airborne system.  The motor unit
used  in  this  model  is  powerful  enough  to  cause  damage  to 
people or property if it is activated prematurely, accidentally, or 
unexpectedly.    With  an  electric  airplane,  we  recommend  that
you  get  in  the  habit  of  always  keeping  the  throttle  stick  in  the
"low throttle" position, even when the transmitter is in storage.
Be  sure  to  recheck  the  throttle  stick  position  before  plugging 
in  the  airborne  battery  pack  and  also  before  turning  on  the 
airborne  on/off  switch.    Under  no  circumstances  should  you
hold  this  model  by  the  nose  when  the  battery  is  plugged 
in.   

Never

plug  your  flight  battery  to  the  ESC  until  1)  your 

transmitter is on with the throttle stick in the low position and 2)
you are on the flight line, ready to fly.

Summary of Contents for KADET EP-42B

Page 1: ...1 SIG Mfg Co Inc Wingspan 42 in 1067 mm Wing Area 330 sq in 21 3 dm2 Length 34 in 864 mm Flying Weight 24 26 oz 680 737 g Wing Loading 11 7 12 7 oz sq ft 36 39 g dm2 Radio Req 4 Channel Micro Receiver 4 Micro Servos ...

Page 2: ...rque Hitec HS 55 7 9 grams 15 in oz Airtronics 94091 9 0 grams 18 in oz NOTE Any other brand of servo that is in the same size and torque range will also work just fine 2 INTRODUCTION Congratulations on your purchase of the SIG KADET EP 42B The KADET EP 42B is the latest addition to the long line of legendary SIG KADET trainers Did you know that the first SIG KADET was introduced in 1973 Since tha...

Page 3: ... the possibility of warping the thin control surface parts Recommended Temperatures To adhere the covering 220O F 250O F 104O C 121O C To shrink the covering 300O F 320O F 149O C 160O C First use the hot iron to go over all the seams and color joints in the covering making sure they are all sealed down and well adhered Then hold the hot iron over the wrinkle to lightly shrink the material do not p...

Page 4: ...atch of epoxy glue Use a wire or stick to coat the inside of the slot in the end of the left wing panel with glue Also coat the stub of the plywood wing joiner that is sticking out of the right wing panel and the bare wood end ribs of both wing panels Then put the wing panels together Squeeze the panels tightly together aligning the leading and trailing edges of the wing panels with each other Wip...

Page 5: ...y appearance not wet A dry appearance indicates that almost all of the glue has properly soaked into the hinge and wood A wet appearance indicates that excess glue is puddled in the hinge gap Excess glue can become brittle with age and cut the hinge Also NEVER USE CA ACCELERATOR KICKER ON CA HINGES AILERON HOOKUP For this section you will need the assembled wing 2 aileron servos and appropriate ch...

Page 6: ...a pair of pliers to grasp the pushrod wire at the mark just made and then bend the plain end of the wire 90O towards the center of the wing Make the bend as sharp as possible e The excess length of pushrod wire can now be cutoff leaving a 3 16 end leg to pass through the control horn hole Use a good sharp pair of wire cutters to do this Clean off any burs on the end of the wire caused by the cutti...

Page 7: ...stabilizer sits with a sanding block until the stabilizer will sit level c Remove the stabilizer Mix a small amount of epoxy glue and apply it to the mating surfaces of the fuselage and opening in the plywood tray so that the ends of the servo arms line up with the plastic pushrod tubes already installed in the fuselage b Once you have the servos correctly positioned drill small pilot holes throug...

Page 8: ...tabilizer slightly if necessary until both measurements are the same Wipe off any excess glue using a paper towel or rag soaked in rubbing alcohol Allow the glue to dry 16 As received the rudder is only temporarily attached to the fin with 3 unglued CA hinges in the pre cut slots Refer back to page 3 step 4 of this manual for instructions on gluing CA hinges and use the same procedures described t...

Page 9: ... fuselage to make the next step easier to do d Use a pair of pliers to firmly grasp the pushrod wire at the mark just made Look inside the fuselage to make sure that the Z bend end of the pushrod is parallel to the jaws of your pliers What we re getting ready to do is bend the aft end of the pushrod wire 90O SIDEWAYS to the fuselage meaning sideways when the servo arm is re installed on the servo ...

Page 10: ...typically require soldering of these wires and this requires the use of a soldering iron and flux For our ESC and battery connectors we chose to use a Kavan 6321 K 2 connector set These great little connectors are small lightweight and self polarizing a Solder a battery connector to the two black negative and red positive wires on the ESC Solder the corresponding connector to your flight pack batt...

Page 11: ...ction of movement If needed use the servo reversing feature in your transmitter to make the ailerons move in the correct direction b If necessary reposition the aileron servo output arms as close to 90O to the servo case as possible Be sure to reinstall the output arm retaining screws after making the adjustment c With the servo output arms now squared up check the positions of the two ailerons Ad...

Page 12: ... trailing edges MOUNTING THE COWL 35 From the kit contents locate the plastic cowl and the four remaining T2 x 6 mm PWA screws Note that the correct mounting location and position of the cowl is with its forward face approximately 1 4 6 mm behind the front face of the 3 5 mm lock nut and centered with the motor a Slide the cowl in place over the motor and onto the front of the fuselage Use pieces ...

Page 13: ... it might go Some models will try to climb while others may want to go down Some will try to turn left others right Some models will be doing both at the same time It doesn t mean that there is anything wrong with the model but these minor differences must be trimmed out 13 sheet with a sharp 11 hobby knife or a sharp scissors Small decals can be easily applied to the model by simply removing the ...

Page 14: ...s an incorrect control input can produce almost instant problems that in turn demand almost instant correction This is especially true at lower flight altitudes A good flight instructor will climb your model to an altitude that gives him a good chance of saving your airplane when you make these inevitable mistakes This altitude is generally referred to as 2 mistakes high When you get into trouble ...

Page 15: ...h important liability insurance in case your R C model should ever cause serious property damage or personal injury to someone else ACADEMY OF MODEL AERONAUTICS 5161 East Memorial Drive Muncie IN 47302 Telephone 765 287 1256 AMA WEB SITE www modelaircraft org CUSTOMER SERVICE SIG MFG CO INC is committed to your success in both assembling and flying the KADET EP 42B ARF Should you encounter any pro...

Page 16: ......

Reviews: