Aviation Design super scorpion User manual

- 91490 MILLY LA FORET –FRANCE - Tel : [phone] - [e-mail] –www.aviation-design.fr
1
SCORPION
Assembly manual
ZI le chenet, 91490 Milly La Foret, FRANCE
Tel : [phone]
Fax : [phone]
E-mail : aviation.des[email protected]
www.aviation-design.fr Version 01/04/2013

- 91490 MILLY LA FORET –FRANCE - Tel : [phone] - [e-mail] –www.aviation-design.fr
2
INTRODUCTION
ScoRpion is our new jet trainer. It is fully composite, delivered assembled and painted.
It is designed for jet beginner with following objectives :
-Very easy to fly.
-Short take off and landing due to big airfoil thickness (13%), large flaps and low wing loading
-Very fast assembly
-Easy access to engine (big engine hatch)
-Easy access to fuel tank, ECU and radio with a large fuselage hatch
-Easy radio installation with big fuselage hatch and servo cover supplied
It is designed for a 9 to 12 kg thrurst turbine.
The ScoRpion is fully molded in composite material.
The model comes to you finished, fully molded in composite material and painted in mold. All
bulkeads are glued. All control surfaces are hinged. No gluing is required. This model has plug in
wings and fins for an easier transport.
All necessary hardware is included in the parcel.
Assembly requires only few hours to fit engine and radio.
ScoRpion ARF model includes :
- High quality epoxy-glass fuselage painted.
- All plywood and wood parts premounted.
- Fully molded wings with winglets, stabs and fins painted
- High tensile aluminum wing joining tube.
- Access hatch and canopy requiring no additional framework.
- Fiber exhaust cone.
- All hardware (screws, servo cover, ...)
- Instructions in English with pics.

- 91490 MILLY LA FORET –FRANCE - Tel : [phone] - [e-mail] –www.aviation-design.fr
3
Parts required to complete the kit :
-3.2 liters kevlar fuel cell
-or 3.2 liters tank + UBT
-1 liter smoker tank
-Deluxe retractable landing gear with special CNC oleo legs and
wheels set on bearing + brakes
-Or Deluxe gear + 2 electovalves for gear and brakes
-Air brake
-Or air brake with electrovalve
-Clear canopy + vacuum parts
-Cockpit Interior with pilot and seat

- 91490 MILLY LA FORET –FRANCE - Tel : [phone] - [e-mail] –www.aviation-design.fr
4
-Stainless steel exhaust pipe
-Servo pack
- Wings, rudders, stabs protection covers
-Led afterburner
-Navy / US decals
DISCLAIMER
assumes no liability for the operation and use of these products.
The owner and operator of these products should have the necessary experience and exercise common
sense. Said owner and operator must have a valid Model Airplane licence and insurance as required.
Assembly Instructions
Installation of the radio equipment
Components need:
Elevator: 2 servo 12 kg torque
Rudder: 2 mini servos 3 kg torque (Hitec HS 225 MG ou Futaba S 3150).
Ailerons: 2 servos 8 kg torque
Flaps: 2 servos 8 kg torque
Steering nose wheel: 1 servo 3 kg torque
Receiver and switch

- 91490 MILLY LA FORET –FRANCE - Tel : [phone] - [e-mail] –www.aviation-design.fr
5
Fitting the dorsal air brake
Fit robart hinges in the 2
aluminium tube
Glue the 2 aluminium
tube with CA on the
airbrake. Take care that
the hinge point is at the
air brake limit (see pic )
Glue the 2 Robart hinges in the tube with
epoxy.
Bend the hinges at 90° to be sure they are
parallel
Screw the M2 link to the threated rod
Glue the threated rod in the air cylinder rod
Connect the M2 link to the plywood horn
Glue the plywood horn in the center of the
air brake as the pics.
Axis of the link must be at 130 mm from the
end (see pics).
130 mm

- 91490 MILLY LA FORET –FRANCE - Tel : [phone] - [e-mail] –www.aviation-design.fr
6
Fit the 3 mm threated rod in the air cylinder end
Fit 2 M3 screws to lock the air cylinder in the middle of
the threated rod. Secure the screws.
Cut the end of the hinges to fit in the
fuselage hatch.
Send the 2 air brakes pads with an angle so that
the air brake can open and closed without
problem (see pics)
Glue the 2 hinges on the fuselage with
CA. Take care to not glue the axis (put oil on it).
Take care that the airbrake is perfectly centered
in the hatch
Secure the hinges with epoxy.

- 91490 MILLY LA FORET –FRANCE - Tel : [phone] - [e-mail] –www.aviation-design.fr
7
Adjust the threaded
rod position to
have:
-the air brake is
fully closed when
the air cylinder is
closed.
- the air brake
opens when the air
cylinder is open.
Distance is
approximately as
the drawing.
Glue 2 pieces of fiber or plywood at the
end of the air air brake hatch to have an air brake stop.
210 mm

- 91490 MILLY LA FORET –FRANCE - Tel : [phone] - [e-mail] –www.aviation-design.fr
8
Joining front fuselage to rear fuselage
Insert 4 x 3 mm blind nut in the rear section.
Screw the front fuselage to the rear fuselage with
four 3 mm x 20 mm allen screws.
Stabs
Servos installation
Important: the servo MUST be a high quality servo, 12 kg torque, with metallic gears.
Screw the servo on the plywood mount.
The servo lead must be
fixed to the fuselage and
protected from engine heat.

- 91490 MILLY LA FORET –FRANCE - Tel : [phone] - [e-mail] –www.aviation-design.fr
9
Stabs installation
Important: the 2 stabs are pre-balanced to have no flutter.
Slide the stab in the fuselage tube.
In the fuselage, insert and slide the 1 mm plastic washer on the tube and slide the aluminum control
horn.
Put the stab horizontal.
Put the control arm
vertical.
Screw and secure the
aluminum control horn
with the 2 screw CHC
M3
Apply thread lock on
screws.
Screw the ball link on the control horn with M3x16 screw. Check that the ball link is in the right
position so that it is impossible to diconnect the ball from the link. Secure the screw with M3 blind nut
If necessary, invert the ball link.
Connect the servo to the arm with the large M4 ball link, M4 threaded rod and M3 metallic link.
Glue them with threadlock.

- 91490 MILLY LA FORET –FRANCE - Tel : [phone] - [e-mail] –www.aviation-design.fr
10
Gear:
Please, use only the oleo legs supply by Aviation Design.
If you use standard oleo, you will have to modify the gear
position and gear door position.
Fit the main gear on the plywood mount.
Screw each gear with four 4x16 mm CHC screws.
Connect all gear tubing as described in the gear manual.
Fit the brake tubings and attach them with T rap.

- 91490 MILLY LA FORET –FRANCE - Tel : [phone] - [e-mail] –www.aviation-design.fr
11
Fit the front gear on the plywood mount.
Screw the front gear with four 4x16 mm parker screws.
Screw the steering servo on the plywood frame.
Make a hole in the plywood frame for the steering steel wire.
Connect servo to steering arm with 2 mm link + steel wire.
Check that the nose gear retract and extend without problem with
the steering wire.
If necessary, add 2 soft springs or rubber bands to extend the wire when the front gear retract.

- 91490 MILLY LA FORET –FRANCE - Tel : [phone] - [e-mail] –www.aviation-design.fr
12
Aileron and flaps servos :
Screw the servo in the servo cover (we recommand to glue it with silicon glue for more security).
Put in position the servo cover on the wings.
Drill 4 x 1 mm hole in the wings for the screws.
Cut a slot in the control surface for the fiber control horn.
Glue with fast epoxy the control horn.
Connect two 2 mm link with M2 threaded rod.
Screw the servo cover with the 4 parker screws.
Connect the servo with the control horn.
Apply thread lock.
Flaps control horn
Aileron control horn

- 91490 MILLY LA FORET –FRANCE - Tel : [phone] - [e-mail] –www.aviation-design.fr
13
Make a 15 mm hole in the wing root for the servo
electric wire.
Sold electric wire for the flaps and aileron.
Make a 5 mm corresponding hole in the
fuselage for the electric wire.
Don’t make the hole too big so that the
conector can’t fall in the fuselage.

- 91490 MILLY LA FORET –FRANCE - Tel : [phone] - [e-mail] –www.aviation-design.fr
14
Secure the wings:
Fit the wing joiner tube through the fuselage.
Take care to put it at the center (same lenght left and right (about 220 mm).
Install the left and right wings.
A plywood reinforcement is located between the fiber tube and the wing skin to drill the hole to secure
the wings.
You can see it from the flap servo hole.
It is located at about 19 cm from the wing root under and on the wing.
A pre-drill is already done under both wings on the lower surface to secure the tube.
Assemble one wing on the tube and against the fuselage.
Make a 2.5 mm hole in the tube.
Treated the wing tube at M3 mm and secure wing with a M3x20 screw.
Assemble the second wing on the tube and against the fuselage and check they are perfectly join to the
fuselage.
Make a 2.5 mm hole in the tube.
Treated the wing tube at M3 mm and secure the second wing with a M3x20 screw.
You can also secure the tube in the fuselage (but not essential).
Make a 2.5 mm hole in the center of the fuselage from the engine
hatch. Drill the hole throught the fiber tube and aluminium tube to
secure the tube.
Screw a 3 x 16 mm parker screw through the tubes, so the tube
will not move during assembling and desassembling.
If you don’t secure the tube in the fuselage, you can just draw on
the aluminium tube the wing limit and an up/down mark to find
easily the hole for the wing screw when you assemble the model.

- 91490 MILLY LA FORET –FRANCE - Tel : [phone] - [e-mail] –www.aviation-design.fr
15
Rudder servos:
Process as the wing servo:
Increase the hole for the servo location in the booms with a Permagrit rotating tool for the rudder.
Screw the servo in the servo cover (we recommand to glue it with silicon glue for more security).
Put in place the servo cover on the fin.
Drill 4 x 1 mm hole in the wings for the screws.
Cut a slot in the control surface for the fiber control
horn.
Glue with fast epoxy the control horn.
Connect two 2 mm link with M2 threaded rod.
Screw the servo cover with the 4 parker screws.
Connect the servo with the control horn.
Apply thread lock.
Make a 20 mm hole in the fin root for the servo electric
wire.

- 91490 MILLY LA FORET –FRANCE - Tel : [phone] - [e-mail] –www.aviation-design.fr
16
Make a 5 mm corresponding hole in the
fuselage for the electric wire.
Don’t make the hole too big so that the
conector can’t fall in the fuselage.
Sold electric wire for the 2 rudder in Y.
Secure the fins:
Fit the fins on the fuselage.
Make a 2.5 mm hole at 15 mm from the
fin root throught the fuselage and
aluminum tube to secure the fins.
Treated the tube and fuselage at M3 mm
and secure fin with a M3x15 screw.

- 91490 MILLY LA FORET –FRANCE - Tel : [phone] - [e-mail] –www.aviation-design.fr
17
Fuel tank
Connect the fuel tank to the clunk as the photo.
Check that there is no leak before to fit it in fuselage.
Drill a 3 mm hole in the bottom of the fuselage for the fuel
vent.
The fuel tank is connected to the UAT catch tank to be sure
that there is no bubble in the fuel line.
The tubing from the main tank to the catch tank and to the
catch tank to the fuel pump must be gasoline tubing (no
silicone tubing). Also for the air vent tube.
The catch tank is glue with double face tape or with rubber band on the side of
the main tank.
Hold the fuel tank with rubber bands or silicon glue.
Fuel vent

- 91490 MILLY LA FORET –FRANCE - Tel : [phone] - [e-mail] –www.aviation-design.fr
18
Filling the fuel tanks:
Connect your pump and fill the system in direction of the tank. It will first fill the catch tank and after
the main tank. The main tank will be full when fuel comes from the air vent tube.
When tanks are full, close the filling tubing.
Do not close the air vent tube after.
The system is ready for starting.

- 91490 MILLY LA FORET –FRANCE - Tel : [phone] - [e-mail] –www.aviation-design.fr
19
Smoker tank:
A 1.1 liter smoker tank can be fitted in the
Scorpion.
It can be fitted on the top of the main kevlar fuel
tank.
Connect the fuel tank to the clunk as the photo.
Check that there is no leak before to fit it in
fuselage.

- 91490 MILLY LA FORET –FRANCE - Tel : [phone] - [e-mail] –www.aviation-design.fr
20
TAILPIPE EXHAUST
To insert the tailpipe in the plane, you will have
to disassemble the from aluminum cone from
the steel pipe.
Fit the steel tailpipe in the plane.
Insert the aluminum cone in the fuselage.
Secure the cone with the pipe with its screw
and the aluminum pad.
The aluminum cone is fix to the plywood
engine mount with 2 parker screws at 180 ° :
Drill the aluminum ring and the plywood and
srew the 2 parker screws.
The end of the pipe will be hold by the fiber
exhaust cone on the double walded steel sheet
or will be hold on 3 plywood pads in the
middle of the exhaust fiber cone.