GRAUPNER ASH 31 MI Bedienungsanleitung

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY

Changes reserved! No liability for printing errors ID. no. 0063067 07/2012

for Order no. 42125

42135

Instruction Manual

ASH 31 MI

RC Glider and Electric Aircraft

for

Slope Flying, Towing and Electric Flight

A remote control with 6 functions is needed!

This models is not a beginner model and is only

intended for experienced model builders!

The present model is a technically mature design with well-balanced flight

characteristics. The pre-assembly of a number of the individual parts enables a rapid

building process.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY

Changes reserved! No liability for printing errors ID. no. 0063067 07/2012

Technical data

Wingspan, about 4510 mm

Length about 1785 mm

Wing airfoil TA06/11

Tailplane airfoil NACA 009

Total surface area about 79 dm²

Flying weight depending on

equipment from about 5500 g Glider

7000 g Electric

Center of gravity about 95 mm behind the leading edge measured on the left and

right of the hull.

Longitudinal dihedral about 1°

Notices for the construction of the model

Before building of the model, be sure to study the manual from start to finish. Be

aware of the potential dangers associated with the use of tools.

Clean all oily residue off of the surfaces to be adhered prior to adhering them. This

can be achieved with light sanding and a non-oily cleanser. Prior to adhering parts,

make sure to roughen the corresponding surfaces (especially with GRP hulls)

carefully using a fine sandpaper and be sure to thoroughly remove all grease and oil

using acetone, etc. Otherwise, sufficient adhesion cannot be guaranteed.

Required tool for the construction of ASH 31 MI

Pencil (hardness HB), all-purpose pen, geometry triangle, as well as a measuring

tape or meter stick, household scissors, a thin and sharp knife - such as a balsa

knife Order No. 980, small electric drill, various spiral drills, Allen wrenches, injection

syringe Order No. 729.3.

Adhesion of materials

The table below shows some examples for adhesive bonds.

It should not be considered exhaustive.

Material Adhesion example Adhesive

Order No.

GRP with Hull with UHU plus endfest 300

Plywood Landing gear ribs Order no. 950.43

GRP with Hull with UHU plus endfest 300

Aluminum F tow coupling Order no. 950.43

Areas of the hull without pull-away material which are to be adhered must be sanded

using a fine grain sandpaper in order to remove any remaining release agent. Wipe

away sanding dust. In the process, the shiny surface of the hull must always become

matte, otherwise a good adhesion of the adhesive with the hull cannot be assured.

To join the individual parts with one another, make sure to following the

corresponding instructions for use provided on the adhesive. Additional adhesives

can be found in the FS catalog.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY

Changes reserved! No liability for printing errors ID. no. 0063067 07/2012

When using adhesives with solvents, make sure that the room is well-ventilated.

Observe the manufacturer's notices.

Remote control system

Strongly recommended: Computer system mc-32

Recommended servos:

Rudder DES 678 BB,MG Order no. 7943 1 unit

Elevator DS 3288 BB,MG Order no. 5187 1 unit

Outer aileron DS 3288 BB,MG Order no. 5187 2 units

Center aileron DS 3288 BB,MG Order no. 5187 2 units

Camber-changing flap DS 3288 BB,MG Order no. 5187 2 units

Landing flap DES 678 BB,MG Order no. 7943 2 units

F tow coupling DES 678 BB,MG Order no. 7943 1 unit

Retractable landing gear HBS 760 BB,MG Order no. 7985 1 unit

Wheel brake HBS 760 BB,MG Order no. 7985 1 unit

For the connection of the servos to the receiver

6x Servo voltage regulator PS 5.9 volt Order no. 4197

For battery connection cable 4x Order no. 3941.6

1x Order no. 2985.D

Required servo extension cables

Order no. 3935.180For elevator 1 unit

Order no. 3935.180For rudder 1 unit

Order no. 3935.75 For connection to the receiver 8 units

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY

Changes reserved! No liability for printing errors ID. no. 0063067 07/2012

Order no. 3935.65 For connection to the receiver 2 units

Order No. 1587-20 Hook-and-loop cable tie 1 package

As a receiver battery, we recommend a two-cell LiPo battery with a capacity of at

least 5 Ah, e.g. Order no. 99013, which must always be well-maintained before and

after flight.

Rechargeable batteries are recommended for the receiver and transmitter, because

they offer the greatest safety.

See the FS catalog for the corresponding charger.

Foam rubber for the bearing of the receiver

Hook and loop tape Order no. 3368.1 for the fastening of the receiver

Hook-and-loop cable tie Order no. 1587 for the fastening of the drive battery

Required accessories

Retractable landing gear Order no. 1137

Cockpit equipment Order no. 1055.1

Joystick set Order no. 1064.2

Assembly of the ASH 31 MI

Only the assembly of the electric version is described in the assembly manual.

Obviously the work pertaining to the extend/retract drive is omitted for the glider

version.

Only begin with the assembly once you are familiar with the components and

individual building stages. If there are grounds for objection of a component, inform

your specialist dealer prior to beginning with the construction.

The hull

All parts of the hull to be adhered must be sanded with sandpaper until the area to be

adhered becomes matte (also refer to the information in the adhesives table).

Remove the pull-away material on the adhesion areas of the hinge joints for the

closing flaps of the landing gear and extend/retract drive. Attach the hinges at the

flaps and hull as shown in the photos. In the process, make sure that the gap

between the hull and flaps is the same size all the way around.

After the adhesive hardens, it should

adhered with a strip of glass fabric leaving a slight protrusion for the hinged joints.

Torsional springs must be bent from the accompanying Ø 0.6 mm steel wire to close

the flaps and must be adhered as shown in the photo.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY

Changes reserved! No liability for printing errors ID. no. 0063067 07/2012

As you can see in the photos, stops in the hull are adhered at the ends of

the flaps so that the flaps end flush with the outer contour of the hull.

The ribs for the extend/retract drive and the retractable landing gear are only

attached in the hull and still have to be adhered with 24-hour epoxy resin.

The retractable landing gear and the extend/retract drive are mounted in the hull after

the adhesive has hardened.

Please follow the instructions accompanying the landing gear for the assembly of the

retractable landing gear. Here are a few photos showing how the retractable landing

gear is assembled.

Now insert the retractable landing gear into both ribs and fasten using the Allen

screws and the holder bracket.

The extend/retract drive is screwed onto the rib with the two screws.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY

Changes reserved! No liability for printing errors ID. no. 0063067 07/2012

The screw must be secured against loosening with UHU thread-lock.

For the assembly of the tail wheel and the rudder servo, the recess at the hull end

must be cut out and filed down to match the tail wheel.

Adhere the fin end and rudder servo board together.

Extend the rudder servo connection cable with the appropriate extension cable.

Secure the plug connection against loosening. Using rubber bushes, rivets and the

accompanying screws, fasten the servo to the board.

Attach the rudder linkage to the servo lever as shown in the photo.

Now the fin end can be adhered. In the process, make sure that it is recessed from

the edge approx. 13 mm at the bottom and approx. 11 mm at the top.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY

Changes reserved! No liability for printing errors ID. no. 0063067 07/2012

Drill a Ø 2 mm hole on the left and right side of the hull for the bearing shaft of the tail

wheel corresponding to the specifications in the photo. Mount the tail wheel together

with the bearing shaft in the hull. Adhere the bearing shaft on the right and left sides

of the inside of the hull.

Check whether the rudder can move equally far to the left and right. Remove the

rudder, apply adhesive to the GRP bearings and re-insert the rudder and bearings in

the same position. Secure the rudder against slipping with adhesive strips until the

adhesive hardens. After the adhesive hardens, mark the position of the control arm.

Drill a Ø 4 mm hole in the rudder. Attach the steering linkage in the servo lever and

with the Z-bending in the control arm. Check the correct length of the linkage with the

servo mounted in the rudder center position and the control arm connected. Now

adhere the control arm to the rudder with adhesive.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY

Changes reserved! No liability for printing errors ID. no. 0063067 07/2012

Adhere the boards for the receiver and drive battery fastening in the hull as shown in

the two photos.

In the following photo you can see the installation of the voltage regulator PS 5.9 volt.

The cockpit canopy

The cockpit canopy frame must be adapted to the hull. In other words, it must sit

back in the outer hull contour an equal distance all the way around corresponding to

the size of the cockpit canopy. The front fastening of the frame is achieved with a

GRP tongue, which is adhered to the frame so that it protrudes approx. 15 mm.

For the rear fastening of the frame, a Ø 2 mm hole is drilled through the frame and

hull approx. 4 mm below the upper edge of the hull while the frame is in position.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY

Changes reserved! No liability for printing errors ID. no. 0063067 07/2012

The locking of the cockpit canopy is carried out with a Ø 2 mm steel wire guided in a

plastic tube. This tube is attached with the locking pin pushed in. As described with

the hinge joints of the flaps, the tube should be adhered to the hull using a glass

fabric strip. Cut out the cockpit canopy along the mark, leaving a slight protrusion and

adapt it to the canopy frame/ hull.

Before adhering the cockpit canopy on the frame, it must be painted as desired The

cockpit instruments, etc. must also be adhered.

Now the cockpit canopy can be adhered. For this purpose, fasten the frame on the

hull by fastening the front to the hull with the GRP tongue and the rear with a locking

pin. The frame is adhered with the cockpit canopy using UHU ALL-PURPOSE

ADHESIVE Kraft Ord. No. 1096. These are transparent contact adhesives. Before

the adhesion, the hull seam must be applied to the cockpit canopy.

Apply adhesive all the way around on the frame, then position the cockpit canopy so

that the hull seam matches the markings and then remove it again. After the

adhesive has ventilated, place the cockpit canopy in its final position again, line it up

with the markings and press down all the way around. Then the edge of the cockpit

canopy can be painted.

The tailplane assembly

Corresponding to the specified measurement in the photo, cut a slot in the elevator

which extends to the upper covering The GRP control arm must be adhered so that

the attachment point of the steering linkage and the turning point of the rudder match.

The elevator servo is shrink-fitted in shrink hose and adhered in the opening in the

tailplane so that the steering linkage (M2 threaded rod with double elbow with M2

clevis and M2 counter nut) forms a right angle with the turning axis of the elevator.

GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY

Changes reserved! No liability for printing errors ID. no. 0063067 07/2012

The cable on the servo can be left for the connection of the servo to the receiver, or it

can be soldered to a G 6 plug (as shown in the photo), which is adhered in the

recess. In parallel, the counterpiece must be adhered to the elevator support in the

hull. Extreme care must be taken in the process in order to ensure that the plug

connection does not come loose again. For the fastening of the tail on the hull, the

two fastening holes must be melted open using a hot soldering iron.

The wings

Mount the control arms as shown in the photos below. Adjust the length of the

linkage. The steering linkage for the rudders is comprised of an M2 clevis and M2

threaded rod, which has a double bend for attachment to the servo arm (Bending

pliers Order no. 5732). Cut or file slots in the rudders up to the leading edge of the

rudders in order to accommodate the control arms. In doing so, make sure that the

control arms can be pushed in / adhered to the upper covering.

Important: The adhesive bonds of the

control arms with the rudders should be made with 24-hour epoxy resin.

For the installation of the servo, scrape out a recess in the hard foam core up to the

upper covering. Now apply adhesive and adhere the servo mounting frame.

The servos for the landing flaps are also

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