Skyshark P-40N Manual Download Page 20

Control Throws

Aileron

3/4” up and down

Elevator

1-1/2” up  1” down

Rudder

1-1/2” left and right

Flaps

2” down

Preflight checks

• Double check that all control surfaces are properly glued by pulling on
them firmly. 

•  Insure that all control surfaces are operating in the correct direction
with the proper control throws.

•  Insure that all wheels turn freely and that the plane tracks straight
down the runway. Adjust the wheels as necessary.

• Secure all bolts with thread locking compound. This will keep them
from vibrating loose in flight.

19

Balancing the Aircraft

Set the center of gravity by turning the plane upside down with the gear
in the retracted position.

Measure where the wing meets the fuselage

3-3/4” from the leading edge of the wing.

Add weight as necessary to achieve proper balance. Note: This is the
forward most CG. You can gradually move it back as you become com-
fortable flying the plane.

116. Carefully cut the exhaust stacks along the outside of the mold-
ed lines. Sand them along the molded lines and use 5 min epoxy to
glue them in place as shown. Clean up any excess epoxy with dena-
tured alcohol.

117. Balance the spinner by first painting it your preferred color (we
used Krylon red). 

118.  Assemble  the  backplate  and  make  a  reference  mark  on  the
spinner  and  backplate  so  they  can  be  aligned  when  the  spinner  is
assembled on the plane.

119. Use a prop balancer to check the balance of the spinner and
backplate. We fastened the prop balance adapter to the pointed end
of the spinner.

120. To obtain the correct balance, you can drill holes in the back-
plate or use a rotary tool and grinder bit to grind the inside of spin-
ner cone.

The  bolt  included  with  the  spinner  is  10-32  x  4”.  This  bolt  can  be
used with any Tru-Turn engine adapter.

Decal Placement

Wing (top and bottom)

Summary of Contents for P-40N

Page 1: ...alsa and ply wing covered and painted Pin hinges for all control surfaces Hand Painted fiberglass cowl Quality USA made 4 40 hardware included Extra heavy duty fiberglass accessories Designed for retr...

Page 2: ...from us If you would like to purchase replacement parts please call our customer service line at 1 866 854 6100 We will be happy to assist you with anything that you need General Building Information...

Page 3: ...e to stay on the rud der or you will experience ground looping There is nothing out of the ordinary to note about takeoffs Advance the the throttle slowly and let the plane build up speed It will lift...

Page 4: ...he pushrods line up with the hardwood blocks in the ailerons and flaps 4 Align the servo on the servo cover so the arm is centered in the slot Glue the mounting blocks to the servo cover as shown usin...

Page 5: ...to the holes in the wing trailing edge Tape the flap in place and allow the epoxy to dry There should less than a 1 16 gap between the flap and trailing edge of the wing Repeat the above process for t...

Page 6: ...ol surface centered attach a 4 40 clevis to the servo arm and control horn Measure and cut a piece of 4 40 threaded rod to the correct length You can either solder one clevis onto the con trol rod or...

Page 7: ...ed locations 22 Place the template onto the fuselage so the crease is facing up Make sure it is flush against the wing saddle and with the front dowel mounting plate Mark the location of the wing dowe...

Page 8: ...s into place Insure the dowels extend 5 8 from the wing leading edge 26 Place the wing on the fuselage and double check the wing dowel alignment Once everything is aligned drill two 1 4 holes in the f...

Page 9: ...ned up edges wrong con tour etc you can adjust it by taping the edges with masking tape and using a heat gun to soften the fiberglass while carefully pressing it into place with a gloved hand You may...

Page 10: ...d fit the belly pan to the wing Apply weight to the belly pan until the epoxy has cured We use socks filled with lead shot for this task but maga zines or plastic bags filled with sand also work 37 On...

Page 11: ...tom of the stab through the tail wheel retract area Apply a thin layer of epoxy to the stab in this area in insure everything is secure 45 Place a 1 1 8 control horn 1 8 from the inner edge of one ele...

Page 12: ...gned use a 7 32 drill bit to mark the bolt holes on the firewall box 52 Remove the mount and drill four 15 64 holes in the firewall 53 Install four 10 32 blind nuts in the back of the firewall and che...

Page 13: ...as is required then you may need to make a small adjustment of the cowl in order to fit it per fectly to the spinner backplate 58 Once you are sure of the correct cowl alignment drill 5 64 holes at v...

Page 14: ...x 3 8 button head screws and plastic washers 65 Attach the spinner backplate and prop to the engine and slide the engine in place so it is centered on the cowl opening and 1 8 from the front of the c...

Page 15: ...Connect the 4 40 ball link adapter to the control arm and install the arm on the servo 73 Cut a 4 40 threaded rod in half and thread a 4 40 nut onto one end Thread that end into the ball link adapter...

Page 16: ...spaced 1 8 hinge holes in the verti cal stab 81 Mark the the holes in the same location on the rudder and drill to 1 8 Note You many want to cut a small slot in the beveled edge of the rudder at each...

Page 17: ...rance Adjust the position as neces sary for proper clearance 92 Mark and drill four 3 32 mounting holes Remove the retract and put a few drops of thin CA in each hole 93 Install the airline per the ma...

Page 18: ...erate the valve 102 Apply 5 min epoxy to the edges of the wheel well covers and fit in place Place weights on the covers until the epoxy cures 95 Attach the wheel to the retracts 96 Retract the gear a...

Page 19: ...cures 106 Locate the black instrument panel clear gauge lens and paper gauge face 107 Cut the paper gauge face and clear lens piece to size as shown 108 Use medium CA or 5 min epoxy to glue the clear...

Page 20: ...Note This is the forward most CG You can gradually move it back as you become com fortable flying the plane 116 Carefully cut the exhaust stacks along the outside of the mold ed lines Sand them along...

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