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SIG KADET EP-42B, Инструкция по сборке, Страница: 7 / 16

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❑

13) Hold one of the white plastic control horns up against the

edge of the elevator.  Use a fine tip pen to mark the two pegs on
the  base  of  the  control  horn  for  cutting  off  just  below  the  top 
covering of the elevator.  Then, use a sharp razor blade or hobby
knife to cut off the pegs at the marks.

❑

14) Note  that  there  are  two  holes  pre-drilled  in  the  center  of 

the  elevator,  under  the  covering  material,  for  the  control  horn
mounting.  Puncture the covering material directly over these two
holes,  on  the  BOTTOM  of  the  elevator  only,  to  accept  the  two
"pegs" of the control horn.  Use a sharp knife to remove the small
strip  of  covering  material  between  the  two  holes.   Then,  glue  the
nylon control horn in place on the BOTTOM of the elevator, using
thick CA glue.  Apply a small amount of glue to the two pegs and a
small amount of glue to the bottom of the control horn base itself.
With  the  three  small  holes  in  the  control  horn  facing  forward, 
firmly press the horn into the two pre-drilled holes in the elevator,
until  the  base  bottoms  out  on  the  elevator  surface.    If  any  glue
oozes out onto the covering, it can be easily removed with SIG CA
Debonder.

❑

15) Next,  the  horizontal  stabilizer/elevator  assembly  is  glued

permanently onto the fuselage.  To allow enough time to properly
align  the  stabilizer,  we  recommend  using  slow  drying  SIG  Epoxy
Glue for this step.

a) Begin by first mounting the wing to the fuselage using the 

provided 4-40 x 1" nylon wing bolts.  Place the model on a 
flat surface that lets you view it directly from the front.

b) Set  the  stabilizer  in  place  on  the  fuselage.    Use  a  small 

weight  or  pins  to  hold  the  stabilizer  in  position.   View  the 
model  from  the  front  to  see  if  the  stabilizer  is  properly 
aligned  with  the  wing  and  fuselage,  without  tilting  to  one 
side or the other.  If necessary, take the stabilizer back off

and  make  slight  adjustments  to  the  fuselage  where  the 
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  through  the  plywood  for  each  servo  mounting 
screw - we used a small pin vise and a .040" (#60) drill bit 
to make these pilot holes.  Then, use a small screwdriver to 
install the servo mounting screws.

❑

10) Determine which of the long pre-bent pushrod wires is for

the  elevator  (right  side)  and  which  is  for  the  rudder  (left  side).
Notice in the next picture that the Z-bend in the end of the pushrod
will be installed up through the bottom of the servo arm and that
the  V-shaped  adjustment  bend  goes  towards  the  outside  of  the
fuselage.    Using  these  two  criteria,  you  can  determine  which
pushrod is for the elevator and which is for the rudder.  Once you've
got  them  properly  identified,  slide  the  pushrod  wires  inside  the
appropriate plastic pushrod tubes in the fuselage.

❑

11) Remove the servo arms from the servos.  Install the servo

arms on the Z-bend ends of the pushrod wires (if the holes in your
servo arm are too small for the wire, drill out the holes with a #60
or 3/64" dia. drill bit).  Then, reinstall the servo arms back onto the
servos  -  do  not  tighten  the  servo  arm  screws  completely  yet
because  the  arms  may  have  to  be  repositioned  when  the  radio 
system is tested and centered.

TAIL SURFACES:

For  this  section  you  will  need  the  horizontal  stabilizer/elevator
assembly,  the  vertical  fin/rudder  assembly,  and  2  nylon  control
horns.

❑

12) As received, the elevator is only temporarily attached to the

stabilizer with 4 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 there to glue the
elevator hinges permanently in place.  Let the glue dry a minimum
of 10 minutes before flexing the hinges.

7

Содержание KADET EP-42B

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 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 ...

Страница 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...

Страница 16: ......

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