aero-naut LT 200 Flex, Руководство пользователя

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The
LT 200 Flex
is a sailplane of conventional wood construction and designed for light-wind
conditions. The fuselage is built-up in a layer technique with laser-cut wood parts, the fully sheeted wing
is of conventional design with ribs and spars. Building materials are mostly balsa and light-ply to achieve
a light yet strong structure for maximum flying performance. The only exception is the carbon tube boom,
which saves a lot of weight.
The wings of the LT 200 can be buildt in three different ways. The model can be flown with rudder and
elevator control only, so that no additional servos are required in the wing. It can also be equipped with
ailerons and/or flaps/spoilers. Construction is the same for all three options. Those, who want to add
aileron and/or flap/spoiler control later, should install the required servo leads right at the beginning,
because it is not possible to add them at a later stage.
Construction should be according to the step-by-step instructions provided in this manual. Use the
parts list to identify the included stripwood and hardware. Always check that parts fit perfectly and
correct, if necessary, before you glue. Give glue sufficient time to dry or cure, before you proceed to
the next step.
We recommend white glue (if not otherwise noted) for gluing, which offers good strength and low
weight. White glue retains a certain degree of elasticity after the glue has cured and will stand up to any
loads which occur during flying.
1
2
Insert and glue balsa ribs F5 to F8 (2 mm balsa) as well as rib F9 (5 mm balsa) into main spar.
Inner Wing Panel
Place wing jig for inner wing panel on a flat surface and secure with tape. Note that circular
opening in wing jig is located beneath root rib.
Insert main spar F1 and ribs F2 to F4 (3 mm poplar) into jig and glue together.
F1
F2
F5
F6
F7
F8
F9
F3
F4
3
4
Glue together upper wing sheeting F13, F14 (L/R) and secure with
tape until dry.
Glue in place upper wing spar F10 (5×2 mm spruce) and clamp to main spar until glue has dried.
Glue in place spoiler spars F11, F12 as shown. Small tabs in the ribs´ cut-out are used as spacers between
spars and make it easy to cut out spoilers later on.
F10
F12
F13 L/R
F14 L/R
F11
Electric power
Motor outrunner, 28 mm, ca.1,100 kV
Speed Control from 20 A
Battery 2-3S LiPo, from 1,300 mAh
Propeller CAMcarbon folding prop 9x5"-12x6"*
Recommended Equipment (electric power)
Precision spinner 42 mm**
Order.-No.: 7252/12
(3.00 mm shaft)
: 7252/13
(3.17 mm
Order.-No.
shaft)
: 7252/14 Order.-No.
(4.00 mm shaft)
Folding prop hub, 42 mm
Order.-No.: 7242/22
* compare recommendations with data sheet of your motor
** Order-No. to suit shaft diameter
Technical Data
Wingspan: ca. 1,920 mm
Length: ca. 1,120 mm
Weight: from 850 g
Wing area: ca. 30.2 dm²
Wing loading: ab 28 g/dm²
RC-functions: rudder, elevator, motor control
(ailerons, spoilers)
RC equipment
Radio control to suit number of control functions
2 servos ca. 22×11.5×25 mm for rudder/elevator¹
2 servos ca. 30×10×35 mm for airlerons (max. 10 mm thick)²
2 servos ca. 22×11.5×25 mm for spoilers¹
¹ e.g. D-Power AS-225BBMG
² e.g. D-Power AS-840BBMG
Tipps & Hinweise
Recommended glue
Material
Glue (Oder-Nr.)
wood/wood Ponal Express (7638/10)
wood/metal UHU Plus sofortfest (7633/07)
For building we recommend
our aero-pick modeller´s pins
Order No. 7855/02
Please see instructions for
recommended glue.
i
Attention! Make sure you follow
instructions carefully.
Note! Additonal information for
current building step.
Sand off retaining tabs of laser-cut
parts for best results.
Use a sharp modelling knife to cut
the tabs. Do not remove parts by
hand to avoid damage!
We recommend our
modeller´s
knife
Order No. 8185/00
Recommended primer
Material
Item Order-No.
Wood Porenfüller 7666/02
Flex
... use our balsa-ply building boards to build up the
wings. Aero-Pick pins (Order-No. 7855/02) are perfect for
pinning down and positioning parts on these building
boards.
Dimensions: ca. 400 x 1,500 mm
Thickness: 25 mm
Order-No. 7506/77
For best results ...