GRAUPNER 400 Bedienungsanleitung Seite 24

Foreword
The MICRO STAR 400 is a miniature electric-powered helicopter which boasts all the perform-
ance and flight handling of much larger models. It is controlled using collective pitch and a
Bell/Hiller main rotor mixer linkage, i.e. we have not adopted any compromises which would
have an adverse effect on flight control. The result is that the MICRO STAR 400 can even be
flown in quite strong winds without problems, in spite of its diminutive size.
The potential flight time per battery charge naturally varies according to the model's set-up and
the pilot's flying style; our experience shows that around 15 minutes duration is possible under
normal conditions if the recommended LiPo battery is used.
The control functions roll, pitch-axis and collective pitch are mixed mechanically, which means
that the model can be flown using a simple four-function radio control system; motor speed
control and collective pitch are coupled together using a Y-lead. Nevertheless, a transmitter with
special helicopter options (mc-12 ... mc-24) obviously offers certain advantages.
The model's strong, lightweight chassis consists of nylon components, while the tail boom,
boom braces and skids are made of eloxided aluminium. The stabilisers comprise extremely
lightweight GRP frames which can be "closed" (using the film decals supplied) to produce con-
ventional stabiliser panels which are easier to see in flight.
The motor drives the main rotor by means of a single-stage gearbox with an integral auto-rota-
tion freewheel - by no means a standard feature in this size of model. The tail rotor is driven di-
rectly by the motor via a ballraced carbon fibre shaft.
The MICRO STAR 400 is supplied in a carry-case with handle; the case can be used subse-
quently to store and transport the model in ready-to-fly form (with main rotor blades removed).
Specification
Length excl. rotor approx.
Height approx.
Width excl. rotor approx.
Main rotor Ø
Tail rotor Ø
All-up weight min. approx.
Main rotor reduction ratio
Tail rotor reduction ratio
580 mm
205 mm
90 mm
630 mm
140 mm
495 g
13,2:1
4:1
2
Micro Star 400