The EXTRA 300 S is currently one of the world“s finest aerobatic aircraft.
The aircraft is built in Dinslaken, where the famed aerobatic pilot Walter Extra
designs and produces these machines. As with modern gliders, these powered
aircraft are built using primarily GRP and CFRP
composite materials. The engines fitted to these machines are specially
converted in Germany, and feature increased compression ratio anddifferent
pistons. We were determined that our model would feature harmonious, nicely
balanced flying characteristics and top aerobatic performance. This is reflected
in the precise way the EXTRA 300 S follows every control command during
aerobatics, but remains docile to handle at landing time. The construction of
the model using conventional built-up techniques produces a very low take-off
weight, which is the basic requirement for good aerobatics. The fuselage
features conventional formers and is reinforced at all highly stressed points.
The wing panels
feature ribs and spars, and are partially sheeted; they only have to be glued
together using the generously dimensioned joiners supplied. The fin and
tailplane are solid balsa sheet panels. The fuselage, wing panels, fin and
tailplane are supplied built and film covered, and the decals are
factory-applied. Completing the model requires little work from the modeller:
all you have to do is join the wing panels, glue the tail panels to the
fuselage, and install the fueltank, motor and RC system. The elevator and rudder
are both actuated by single servos, with the Direct Steel System (DSS) ensuring
slop-free linkages. The ailerons are actuated by separate servos.
Assembly instructions with stage photos in German, English and French. Fuselage,
wing panels, tailplane, fin, GRP motor cowl, GRP wheel fairings, undercarriage,
spinner, fueltank, wheels, canopy, small items, linkage hardware pack.
OS61, OS65LA, OS91, OS91 4 Stroke
Rudder, coupled with tailwheel
Wingspan approx. 1600 mm
Fuselage length excl. spinner approx. 1140 mm
Wing area approx. 42,4 dm²
All-up weight according to fittings approx. 3000 g