Anleitung EXTRA 300 SHP - Green Hobby & Model

The tailwheel unit can now be attached to the tail end of the fuselage, so that the
model can be stood upright prior to fitting the cowl.
Fix the tailwheel unit to the underside of the fuselage: note that the hinge axis of the
rudder should line up with the pivot axis of the tailwheel unit.
Cut off the tailwheel leg flush with the end of the plastic driver, as shown in the photo.
Mark the position of the retaining screws on the underside of the fuselage, drill pilotholes
at the marked points, and install the unit permanently. Fit a screw through the
tailwheel driver and into the underside of the rudder, positioned about 5 mm short of
the end of the guide slot.
Assembling and installing the fueltank
Cut a piece of silicone fuel tubing and push it onto the fueltank clunk weight. Push
the free end of the fuel tubing onto one of the tubes in the fueltank stopper, and
check that the clunk will be able to move freely inside the tank without binding or
jamming when the stopper is in place. Use a heat-gun or a match to heat the
projecting plastic tubes slightly; this will soften them, so that they can be curved to
the shape shown in the illustration. Check that one pipe points down (filler line) and
one up (vent line; this is the overflow when you are filling the tank). Extend these two
tubes with silicone fuel tubing so that they reach the top and bottom of the tank. Push
the stopper into the tank and tighten the cross-point clamping screw. Ensure that the
screw is tight enough to seal the fueltank completely. You can check this by holding
the tank under water: blow into the tubes and watch carefully: if bubbles rise, there is
a leak which must be sealed.
Cut three pieces of silicone fuel tubing and push them onto the tubes where they exit
the fueltank.
Mark the fuel lines using a felt-tip pen or coloured tape to indicate which is the fuel
feed, the overflow and the filler.
Fit the tank in the fuselage through the main opening, and thread the fuel tubes
through the hole in the nose bulkhead.
Connect the fuel feed tube (the one connected to the clunk pick-up inside the tank) to
the carburettor nipple, and route the overflow pipe down. At a later stage the
refueling line can be run to the outside through a hole in the cowl.
The next step is to install the cowl: the retaining screw holes must first be marked on
the fuselage. Apply pieces of paper masking tape to the fuselage, and mark the
position of these holes on the tape; they should be about 20 mm aft of the nose
bulkhead, to coincide with the reinforcements glued on the inside of the fuselage.
Now measure a point 100 mm aft of each hole position. Place the cowl on the
fuselage and mark the position of the screw holes on the cowl by measuring 100 mm
forward of the rear marked points.
When fitting the cowl, please note that the fairing for the spinner should line up
GRAUPNER GmbH & Co. KG D-73230 KIRCHHEIM/TECK GERMANY
Änderungen vorbehalten! Keine Haftung für Druckfehler 02/2007
33