Rapid progress in electric model power
technology now allows us to offer the Rafale in a version with retractable
undercarriage. In this form it is now capable of ground take-off from level,
closely mown grass strips as well as from hard surfaces. The net result with
this twin-engined aircraft is much greater scale fidelity both on the ground and
in the air. A matching 3-part pneumatic retractable undercarriage with steerable
nosewheel is available as an accessory set (Order No. 7358/52). The update is
completed by a new fuselage, moulded in Kevlar fibre for extremely low weight;
it offers maximum strength and contributes to the Rafale’s phenomenal flight
performance. All formers required for the retract system installation are
pre-cut using CAD data, and are supplied in the set.
The key factor in
making this new version feasible is a completely new power system concept. The
previous system consisted of two relatively small ducted fans, which are now
replaced by a single, highly efficient 120 mm impeller unit. This all-carbon
electric fan is a completely new development, and generates up to 40 N static
thrust with a suitable motor. The single motor and fan mean that the overall
cost is lower than the previous arrangement, even when power system components
of the highest possible quality are employed.
The recommended power
plants are the Kontronik Tango 45-08 with 28 GP-3000 or GP-3300 cells, or the
Tango 45-07 with 30 cells. With either motor the fan system spins at 22,000 rpm
and produces a thrust of around 36 N at an input power of approximately 1650 W.
As was the case with the original twin-fan Rafale (Order No. 1347/00),
the two-part fuselage makes it easy to install and maintain the impeller system.
The kit includes finished, accurately made GRP bifurcated pipes of refined
aerodynamic form which are responsible for the efficient flow of air from the
intakes to the fan unit, and from the fan to the divided efflux.
||ca. 940 mm
||ca. 1.340 mm
||ca. 38,0 dm²
||ca. 3.200 g (mit Fahrwerk)
Standard functions are separate elevators and ailerons,
plus motor speed controller, although a working rudder can also be fitted. As
standard the canards are fixed, but experienced modellers will be able to fit an