GRAUPNER KULT Champ Elektro User Manual

GRAUPNER GmbH & Co. KG * Henriettenstrasse 94-96 * 73230 Kirchheim/Teck

www.graupner.de * www.tangent-modelltechnik.com

ELEKTRO

ELEKTROELEKTRO

ELEKTRO

Manual

ID:0062171

GRAUPNER GmbH & Co. KG * Henriettenstrasse 94-96 * 73230 Kirchheim/Teck

www.graupner.de * www.tangent-modelltechnik.com

2

Contents

Preface. ........................................................................................................... 3

Kit contents .................................................................................................. 4

Technical Data ............................................................................................. 4

RC functions ................................................................................................ 4

Fuselage.......................................................................................................... 5

Installing the canopy retainer. ...................................................................... 6

Installing the all-flying tail-plane. .................................................................. 6

Vertical stabiliser and rudder........................................................................ 7

Wing Saddle................................................................................................. 8

Motor Instalation .......................................................................................... 8

Servo Mounting Tray.................................................................................... 9

Fuselage Control Linkages ........................................................................ 10

Wings............................................................................................................. 10

Wing joiner ................................................................................................. 10

Wing mounting. .......................................................................................... 10

Preparation of the wing servo mounts........................................................ 11

Wing control horns. .................................................................................... 12

Wing servo wiring....................................................................................... 12

Finishing ........................................................................................................ 13

Radio Control Equipment Installation. ........................................................... 13

Balancing & Adjusting.................................................................................... 14

First Flights. ................................................................................................... 16

Safety. ........................................................................................................... 17

Parts List. ...................................................................................................... 18

GRAUPNER GmbH & Co. KG * Henriettenstrasse 94-96 * 73230 Kirchheim/Teck

www.graupner.de * www.tangent-modelltechnik.com

3

High Performance Model Glider

KULT Champ is a development of the earlier KULT series. This latest design incorporates
further uncompromising performance characteristics made possible by the Carbon-CHAMP­Edition. Key highlights of this design include; new cell structure of the wings and all control
surfaces, re-dimensioned and lightweight ailerons and flaps, and class leading square
Carbon Hybrid Tec wing joiner. This new Champ is not a Kult with go-faster stripes; it is
clearly in the scope of F3J.

The model is available both as a pure glider and an electric powered version:

KULT Champ ARC # 41740 KULT Champ Elektro ARC # 41800
KULT Champ white/red # 41750 KULT Champ Elektro white/turquoise # 41810
KULT Champ Anopheles # 41755 KULT Champ Elektro Anopheles # 41855

Preface.

Thank you for choosing the KULT Champ high performance model glider. We wish you much
success and enjoyment with your new model.

Your TANGENT model kit from the home of GRAUPNER represents a mature design and
the product of many years experience in the manufacturing of high performance model
aircraft. However, despite the most scrupulous quality control, small deviations may arise.
We ask therefore that all parts be carefully inspected prior to undertaking any assembly work
and before flying the model. This is particularly important as any used parts are not subject to
repair or replacement. Notwithstanding the above, we are happy to repair or replace parts
found to be faulty – subject to approval by the factory. Please therefore return any faulty
parts together with a detailed description of the fault.

Our products are the subject of continuous development and as such we reserve the right to
make changes to the design, engineering, manufacture and materials supplied without prior
notice. As the product is supplied in kit form, no claims will be considered in respect of the
assembly or operation of the model.

Caution!

Remote controlled models and model aircraft in particular, are not toys in the normal
sense. Building and operation of this model aircraft requires a high degree of
technical understanding and care, as well as considerable skill and discipline at the
flying field. Errors in the building process and in the subsequent operation of this
product can result in serious personal injury and damage to property. As kit
manufacturer we have no control over the assembly, maintenance and operation of
this model aircraft, we therefore take this opportunity to stress the potential hazards
and emphasise the personal responsibility on the part of the user.

GRAUPNER GmbH & Co. KG * Henriettenstrasse 94-96 * 73230 Kirchheim/Teck

www.graupner.de * www.tangent-modelltechnik.com

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Kit contents -

(See Parts List for details)

1 Pair of wing panels – Carbon Champ Edition, incorporating LSCTP,

3D optimised leading edge & tip section, torsion-rigid INTRO Technology, integrated
Elastik Flaps, square Carbon Hybrid wing joiner, TA Servo-Locks and TA wing locking

system.
1 GRP Fuselage – in brilliant white, Carbon reinforced with built-in Bowden
tubes.
1 Canopy - preformed in Carbon.
1 All flying tail plane – factory finished.
1 Rudder – factory finished.
1 Assembly instructions – sheet.
1 Decal set.
1 Wooden parts set.
1 Accessory pack – quality Contestline components.
1 Square wing joiner – Carbon Hybrid Tec
1 Wire parts set.

Technical Data

Wingspan (mm) ca 3360
Fuselage length (mm) 1670
Wing area (FAI) (dm²) 72
Weight (gm) from 2800
Wing loading (FAI)(gr/dm²) From 39
Airfoil MH 32
Longitudinal dihedral (deg) about 1
Centre of gravity (mm from root leading edge) 100

RC functions

Ailerons 2 DS3288 (#5187) or DES 448 (# 7914)
Flaps 2 DS3288 (#5187) or DES 448 (# 7914)
Rudder 1 DES 587 (#7932)

Elevator 1 DS 3781 (#5161)

It is very important that the Receiver Battery be selected to properly match the intended use.
The capacity ought to be sufficiently generous to cope with the load of the on board radio
control system. Considering the use of 6 servos, we recommend a battery capacity (C) of at
least 2300mAh. We recommend #765.2 LiPo battery pack with a PRX-3A switch. We further
recommend that the condition of the receiver battery is checked regularly, using our # 7599
Battery Guard.

In the case where an electric drive system is to be installed, we recommend the following
proven combination:

Motor: Inline 750 14,8V (Grp. #6608)
Spinner: Precision Spinner (Grp. #6040.5)
Propeller: Carbon Folding Propeller (Grp. #1336.36.20)
Speed Controller: Brushless C 70A (Grp. #7237)
Battery Pack: LiPo 3/3700 (Grp. #7661.3).

GRAUPNER GmbH & Co. KG * Henriettenstrasse 94-96 * 73230 Kirchheim/Teck

www.graupner.de * www.tangent-modelltechnik.com

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Note regarding Styrofoam wing cores

.

For all joints involving Styrofoam wing cores it is essential that you do not use any solvent
based adhesives, and in particular avoid use of any form of cyano-acrylate glue. Use of such
adhesives will destroy the foam and render the affected parts useless. Use only solvent-free
adhesives, such as Epoxy resin and/or Aliphatic Resin (white wood glue) if working
anywhere near exposed areas of Styrofoam.

Note regarding the use of Epoxy Resin.

Epoxy alone is not a viable adhesive! However, the addition of appropriate additives makes
for a variety of excellent adhesives. Match the choice of additive to the job at hand:

1. Chopped cotton fibres – produces a tough but flexible joint.

2. Superfine glass fibres - makes a hard joint.

3. Micro-balloons – produces a highly effective, lightweight filler

Assembling your KULT Champ

The kit you have purchased includes all the parts required to complete the basic airframe
(ARC) and covering (ARF), but does not include adhesives or radio control components. You
can make a significant contribution towards the ultimate appearance and performance of
your model by building carefully and accurately. It is a well known fact that a poorly built
model does not fly well and may be difficult to control. A well built and properly trimmed
model will reward the pilot and spectators with good performance and accurate handling
characteristics. Be patient, take your time; the effort will be well worth while!

Take time to read through these instructions in their entirety before commencing the
assembly as this will provide you with a better insight of all the individual steps and how they
might affect one another.

..lets begin.

Fuselage

Open out all of the openings in the fuselage in the area of the wing fairing and the tail-plane.
Use a 3 mm dia. drill to make a series of small adjacent holes to prepare the openings as
indicated by the markings in the mould. Finish the openings using a small file.

Tip: Use a needle file or suitable rotary tool to finish the job.

Remove the temporary adhesive strips from the inside the fuselage cockpit area to ensure a

good bond with the GRP surface. Don’t glue anything to the temporary adhesive strips!

Fig 01 – Remove the temporary adhesive strips

GRAUPNER GmbH & Co. KG * Henriettenstrasse 94-96 * 73230 Kirchheim/Teck

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Completing the canopy.

The Carbon canopy is supplied ready made and requires only minimal finishing. Place the
canopy on the fuselage opening, carefully check the joint and adjust as necessary for a
perfect fit. Minimum gap and good overall appearance will be your just reward for a little extra
time and effort at this stage. Follow the steps below to install the canopy retainer, taking care
to check the fit at each stage.

Installing the canopy retainer.

The canopy is held in place by a combination of a forward canopy pin and a rear GRP leaf
spring. The forward canopy pin is held in place by the channelled hardwood support. The
support is glued to the inside of the canopy about 50mm aft of the canopy edge such that the
tip of the pin is just inside the edge of the canopy. The canopy pin is glued into the channel in
the hardwood support – such that the pin protrudes sufficiently from the front of the support
to engage with the rim of the fuselage opening. Re-check and adjust as necessary to achieve
a good fit. Be sure to roughen the inside of the canopy with abrasive paper before gluing to
ensure a good bond.

The rearward canopy fixing is made using the GRP leaf-spring which is bonded to the inside
of the canopy and held in place with one or two layers of fibreglass cloth suitably wetted with
epoxy resin. Be sure to roughen-up the inside of the canopy with abrasive paper before
bonding the leaf-spring in place.

Test fit the canopy, and use a 3mm drill or suitable round file to form a recess in the forward
rim of the fuselage opening to accommodate the forward canopy pin. Re-check and trim
carefully until a perfect fit is achieved.

Tip. Work carefully and accurately. Your patience will be rewarded by a tight fitting

canopy!

Fig 02. Canopy catch

Installing the all-flying tail-plane.

CAUTION! The elevator bell-crank mechanism is pre-installed in the fuselage, but is
yet to be permanently glued into place.

If necessary, please shorten the Aluminium nuts.

Attach the all-flying tail-plane making sure that the rearward steel wire
joiner passes through the hole in the bell-crank installed the fin. Carefully
check the alignment of the tail-plane halves with the fin.

Prepare a means to hold the fuselage with the fin at right angles to the work surface. Also
prepare something on which to support the two tail-plane halves at right-angles to the fin and
at the correct height. A few carefully selected books and/or Compact Disc holders might well
serve as an adequate jig for this purpose.

Now loosen the two Aluminium nuts holding the bell-crank bearing in place and make any
adjustment necessary to ensure that that tail-plane halves can be aligned at exactly 90° to
the fin. Apply a little thickened epoxy to the inside of the two nuts and carefully tighten,
constantly checking that correct alignment between tail-plane and fin is maintained at all
times.

Leave the entire tail-plane assembled in the jig described above until the adhesive has fully
cured.

GRAUPNER GmbH & Co. KG * Henriettenstrasse 94-96 * 73230 Kirchheim/Teck

www.graupner.de * www.tangent-modelltechnik.com

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Tip: While working with adhesives in this area apply thin parcel tape over the sides of

the fin in the area of the bearing and cut through the tape to expose the holes. This

will ensure that any excess adhesive does not spoil the finish on the fuselage.

Fig 03. Alignment of the all-flying tail plane.

Completing the tail-plane halves.

Work on the uncovered tail-plane panels is limited to finishing the root outline to match the
profile of the fin. The tail-plane halves are factory finished, but some may wish to achieve an
even more accurate match by carefully working the root area using a fine grade abrasive
paper.

Note: The joiner tubes installed in the tail-plane halves incorporate the integrated all
moving TA Tail-Lock mechanism.

Before fitting the joiners into the brass tubes for the first time, check that the wire joiners are
perfectly straight and burr free. When pressing the tail-plane halves into place, you will feel a
mild mechanical resistance which is sufficient to hold the tail-plane halves securely in-place
during flight.

Vertical stabiliser and rudder

Note: Customers building the ARC version may wish to take this opportunity to adjust the

profile of the leading edge of the rudder to match the trailing edge of the fin.

The rudder supplied in the kit is complete and requires only minimal finishing. The rudder
hinge is formed by a Steel wire running in a factory installed pivot tube in the leading edge of
the rudder.

Start by cleaning up the rudder push-rod shroud using a suitable (8-10mm) round file.
Similarly file a small semi-circular recess in the top of the fin to clear the leading edge of the
rudder. You may also find it necessary to generally clean-up the area around the inside edge
of fin post, to ensure that the rudder can move freely within the opening

.

Locate and open-up the two hinge points along the leading edge of the rudder and carefully
mark the corresponding hinge points along the centre of the rudder post. Now drill the holes
using a Ø 3.5 mm drill to accommodate eye-bolts used to form the hinge, and screw these
into the rudder post, but do not bond in place just yet. Insert the fibreglass hinge post through
the guide tube located in the leading edge of the rudder such that it passes through the holes
in the eye-bolts – to form an effective hinge. Now carefully check the movement and throw of
the rudder with respect to the fin and adjust the depth of the hinge, by screwing in (or out) the
eye-bolts until you find the optimum depth. Mark the position of the eye-bolts before finally
bonding into place using a suitably thickened epoxy, re-install the rudder and adjust as
necessary before finally allowing the hinge points to set.

Tip: It is possible to unscrew the hinge bolt and reset it with a little more adhesive should
you find it necessary to make an adjustment after the hinge bolts have been set into the fin
post.

The rudder is attached by pressing the supplied composite hinge rod down through the pivot
tube from the top, and engaging in each of the hinge points.