With the Ellipse 2, you have bought a fully competition
suitability sport-model. It is constructed for experienced model
pilots having fundamental knowledge of model construction.
The model surface is still covered by separate-wax. Remove it
after finishing the construction by means of warm water and a
little bit of washing-up liquid.
To steer the elevator and the side rudder, 15/16 mm broad servos are sufficient. As elevator servo, we advise profi-class "wing servos" (for example : Futaba 9601, 3002, Graupner 3321, MPX MC micro or any other). To control the side-rudder, a 15/16 mm broad middle-class servo as Graupner 3041, Futaba S135 and so on will be adequate. You should use the same servos in your V-fuselage
The steering of the elevator of the Electro fuselage is to be done by a 13 mm broad servo in strip of wood. In extensive flight tests, the Futaba servo 5102 has prooved to be the best choice. The strip of wood of the side stabilizer fin is prepared for installation. To control the side rudder, a middle-class servo of 13 mm is sufficient.
The servo types Graupner JR3311 and 3321 as well as Futaba types 9601, 3002, and MPX MC micro have excellently passed our test. The maximal installation height for wing servos is 16 mm.
The wing underside is prepared for the installation of 4
servos. The installation point of the servos which have their
rudder lever directed to the end strip, results from the incl.
covers of the workingholes. Experience shows that it's sufficient
to stick the aileron servos by a little bit of 5 minutes Epoxy on
the unused inside of the wing upperside, and afterwards, to
connect the servo-housing by means of stuffed 5 minutes Epoxy
with the edge of the workinghole on the wing underside. The
profile height of the area of the gliderflap servo allows to fix
the servos in the prepared, deep drawed tubes. The servos should
be pasted into the tubes by Epoxy. The complete unit will be
pasted by a little bit of Epoxy to the inside of the wing
upperside as well as on the edge of wing underside. The 4 long
brass rudder horns given have to be twisted on the underside of
the rudder. Take a bit of paste. A given plug, called Sub D-9
poled, will be soldered with the servo-cable. Have a look at the
following plan :
After connecting the servos, you should protect them by the given
covers. Use a few drops of Epoxy to fix them to the edge of the
deepening. The 4 torsion-pins have to be stuck by a drop of Epoxy
into the drilling of the middle-part. Because of the exact
fitting, pay attention when pushing open the outside wings and
make sure that the wing connection sticks similarly in the middle
part. The safety of the single wing parts can be arranged by tape
(Tesa Clear).
The work inside the fuselage begins by the installation of the high start hook. The hook will be drilled by a 3 mm drill in a distance of 96 - 100 mm to the share point cone of the fuselage underside, 3 mm from the middle, rightwards. The strenghtened plywood of the wing root fairing will be drilled 1 cm behind the wing screw, from out of the middle to the right from straight above. Shorten the hook a little bit, so that it closes up to the overedge of the wing root fairing. Use much Epoxy at this hole, and you can screw in the hook. With stuffed Epoxy, introduced through the cut out for the Sub-D-plug, you can secure the hook on the bottom of the fuselage. To the opposite part of the Sub-D-sticker, which is installed in the wing, 4 servo cables of your RC system have to be soldered. Draw the cables to where the receiver is installed. The servos for the steering elevator and side rudder have to be placed into the cut out in upright position, so that one rudder lever is directed upwards, and the other downwards. For fixing the machines inside the fuselage, we advise sheet metal screws. The surface at this point is strenghtened. The receiver antenna should be drawn in from behind and along the bottom of the fuselage by a thin steel wire. The fuselage former prepared for to this. With T fuselage and Electro fuselage, the antenna can be leaded inside the side fin and can be fixed with a drop of sec-paste. This method of fixing the antenna pays advantage when receiving is difficult. The antenna can be lenghtened with servo cable if it is necessary. The ballast canes are already pasted. The safety of the ballast can be secured by a pin. You should think about the possibility of fast changing ballast. Euromodell extra ballast is ready to fly (order # 202).
To make the screw fitting a little bit easier, we advise to screw in the 3 screws M2 x 25 mm into the drillings of the side rudder as a test, when it is not already assembled. The steering of the side rudder has to be done by screwing the rudder with the ball and socket joint of the servo pushrod. Through the drilling on the left of the underside of the fuselage, one of the delivered screws M2 will be leaded in and connected to the ball and socket joint.The side rudder will be pushed into the side fin, so that the screw can be turned in on the left from below the side rudder. After this, the arrest screws from below on the right and those from above will be leaded through the leading cane and screwed inside the side rudder. Pull the arrest screws only as far as it works easy and the rudder can still move. To avoid a heavy going rudder as a result of soiling, seal the holes with tape.
The given short brass rudder horn will be screwed onto the prepared part of the elevator with a drop of paste. Proof the exactly parallel placing of the elevator with assembled wing by looking. It may be necessary to take a strip of tape to correct it.
Turn in a screw into the delivered pans and remove them again. Now lead the pans in by a nipper through the workingholes on end of the fuselage, and turn the pans on the windings of the Alu servo pushrods. Turn the servo pushrod of the front of the fuselage.
The Electro Ellipse 2 is made for motors with 300 and 900
Watts power. The number of cells is 12-22. Other combinations are
possible. If you choose 22 cells, you should take Sango N 1000
SCR cutoff to hold the weight, so that you can have an optimum in
allround model sailplane. The combinations that we advised give
enough engineering with lift off speeds of 6-12 m/s. By the way,
we won't advise anything, because there are too many
combinations. Place your impulse accumulator in a way that there
is an exact CG position. Adjustement can be done later by placing
the receiver accumulator. We advise to collect the packet of
accumulators with so called "inline soldering" (cane
form). This method saves place and gives the lowest resistance.
The controller should have its place in the cone and should
always be connected to the motor. The work on the
Electro-fuselage begins with the installation of the motor. The
motor has to be put inside the cone from behind. Fix it from
front with 3 screws and 3 rings for safety.
If you use the suitable Europrop airscrews, the spinner unit and
the airscrew have to be installed 1 mm from cone. Make sure that
the leafs lies easily and completely on the cone. If it is
necessary, correct the storage of leafs slightly.
The elevator and side rudder servos will be installed in the side
fin. Lenghten the cables as much, that they can be put in the
receiver through the opening of the cone. For shorter cables, a
working hole 2x3 cm can be cut out in front of the first screw at
the wing root fairing. The strenght of the fuselage won't suffer.
The access road to the installations inside is much easier by
this. The installation of screening filters right before the
connection of the receiver is meaningful. The elevator servo will
be put into the prepared opening of the strip of wood, so that
the servo lever goes down and in the direction to the bulge on
the right side of the fuselage. For the Futaba servo 5102, the
necessary drillings have already been made as well as nuts M2 for
the fixing of the servo. To make it easier to screw in the lower
screw, you can drill a hole into the end of the fuselage. Assure
a free run of the servo lever when installing the delivered
Alu-servo pushrod. The side rudder servo will be put in through
the working hole on the left side of the side fin, so that the
servo lever goes down and in direction to the bulge on the left
side. To fix the servo, take Epoxy-paste. The rest of the gap
between the work opening and the servo will be filled up and
spaned with much Epoxy. As a servo pushrod, a grub M2 screw with
a quick link at one side and a ball and socket joint at the other
side is fairly sufficient. The delivered black rudder horn will
be screwed in by two M2 screws at the front side of the side
rudder. The side rudder will be connected with the side fin by
tape, inside rightwards and outside along. For the steering of
the side rudder, the ball and socket joint and the horn of side
rudder must have a position which allows the connection of the
two pieces through the screw hole on the left side with a M2
screw. Finally, you can cover the working hole on the side fin by
the delivered GFK covering. Take a strip of tape for the screw
hole.
The receiver accumulator as well as the receiver itself will be
linked up ready to fly and wrapped up with plastic material
pushed in the fuselage below or behind the wing or placed on a
board into the fuselage before the wing.
The on/off switch can be placed on the upside of the fuselage in
the area of the glider flap. The placing of the receiver antenna
should be done equally to the installation of F3B-T fuselage.
The installation of the elevator should be done in the same way as the F3B-T-version.
The Ellipse 2 has a great speed area with very good
performance. In dependence to the priority plan of action, CG
positions from 94-102 mm (from the leading edge at fuselage) are
possible. For all model sailplanes, there's the choice of a
longitudinal dihedral between the angle of setting of the wing
and elevator and a matching CG-position. To optimize every
construction is to find a certain state of flight, for every kind
of speed, shared in distance flight, speed flight and thermal
flight, needs another longitudinal dihedral and CG position. The
thermal flight needs a frontal optimal CG position with a great
longitudinal dihedral; the speed flight demands a CG position far
behind with a small longitudinal dihedral.
With the position of the extra ballast, the CG position
changes automatically in the necessary area.
Attention !
Proof the CG position for distance and speed flights by extra
ballasting. For the exact adjustement of different CG postions at
different states of flight through ballasting, you can take an
Alu-cane or cardboard for pieces of empty ballast.
Pay attention on a possible part ballasting of a ballast cane.
Without a different longitudinal dihedral, the CG position should
be removed less than 4 mm. Within this limit, you can trim the
inevitable adaptation of the angle of setting with the elevator.
The angle of setting of the F3B T-fuselage is exactly adjusted to
1.1 degrees; that agrees to a ca max of 0.9 and produces a CG
position at 94 mm. This CG position is the optimum in lower areas
of speed (F3J thermal flight). You must trim down if you're
willing to fly speed flights.
If you want to fly the Ellipse 2T and Ellipse 2E with the optimum
of allround performance (F3B), fix the CG position at 98 mm
without extra ballast. The delivered longitudinal dihedral for
this coordination is too large. You have to change it with taps
(about 3 pieces) at the front of the elevator root faring until
the Ellipse does a smooth glider fly, without rebel reflex with a
neutral high rudder and extra ballast (and a CG position far
behind) after prick down and rudder neutralization. Now trim the
high rudder at 1 mm for the normal flight without extra ballast,
and simulate a bigger angle of setting for this CG position. The
differences of performance at thermal flights are so unimportant
that it is'nt necessary to find a special angle of setting. The
angle of setting of the V-fuselage is exactly adjusted for F3B
flying to 0.8 degrees. Fix the CG-position without extra ballast
at 98 mm and trim high rudder 1 mm for the normal flight.
Finally, you have to fly the fitting for your's best.
With the following delivered rudder throws, the Ellipse reacts
directly, but not too hard. That agrees to our steering habits
and it is tuned for F3B competition action.
The demanded, extremely narrow turnings are optimized as far as
it seems necessary that the breakouts are for cetain flight jobs,
as there is the speed flight.
Of course, you can change the rudder throws after your own
habits. Surely, you can fly the Ellipse by easy remote control.
How will it be measured ?
Aileron : outside on the edge curve, the measure refers to the edge of end
Side-rudder: below on rudder to the fixed side rudder cover, the measure refers
to the edge of rudder end.
Glider-flaps: inside on the form of fuselage, the measure refers to the edge of rudder end
Elevator : outside on high rudder to the fixed fin ride out.
All measures refer to the edge of rudder end
| neutral adjustment normal flight : | + 1 mm |
| neutral adjustment speed flight : | 0 mm |
| full pulled high rudder : | + 6 mm |
| full pressed deep rudder : | - 6 mm |
| speed flight adjustment by full pulled high rudder : | + 8 mm |
| speed flight adjustment by full pressed deep rudder : | - 6 mm |
| rudder throw by full extended butterfly : | - 4 mm |
For high start with winches over 1 Kw and thermal flight
adjustement of glider flaps, the elevator is not to bring into
line !
| rudder throw left / right : | + / - 17 mm |
| rudder throw left/rigth in combi switch with aileron : | + / - 11 mm |
| rudder throw left/right : | + / - 5 mm |
| rudder throw left/right in combi switch with ailerons : | + / - 2 mm |
| high start adjustment : | + 12 mm max |
| Thermik flight adjustment : | + 3 mm |
| butterfly fully extended : | + 26 mm |
| speed flight adjustment : | neutral |
| elevator/glider flap combination in speed flight memory (full high rudder) : | + 4 mm |
| ...In distance flight (half high rudder) : | + 3 mm |
| ...with deep rudder : | neutral |
| speed flight adjustment : together with QR to above : | - 6 mm |
| speed flight adjustment : together with QR to below : | + 3 mm |
| rudder throw to above : | - 11 mm |
| rudder throw to below : | + 6 mm |
| speed flight adjustment : rudder throw to above : | - 13 mm |
| speed flight adjustment : rudder throw to below : | + 8 mm |
| butterfly, rudder throw to above : | - 12 mm |
| highstart adjustment to below : | + 5 mm max |
| thermal flight adjustment : | harmonized with glider flaps |
| speed flight adjustment : | neutral |
| elevator/glider flaps combination with full high rudder : | harmonized with glider flaps |
No glider flaps combination by deep rudder !