moyes Litespeed RX 3, Руководство пользователя

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LITESPEED RX
OWNERS MANUAL
24
Version 2
Thermalling the Litespeed RX
Bank angle and Airspeeds
The Litespeed RX is designed to thermal comfortably at a bank angle of 30 degrees and
an airspeed of 4mph (6kph) above stall speed. It can be beneficial to climb rate to further
reduce the airspeed but some high siding is required to maintain a shallow bank angle.
The sink rate of the glider improves only very slightly if the airspeed is reduced to the
limit and at such a low airspeed there is some loss of control authority. In strong or
turbulent conditions we recommend flying with excess airspeed to increase control and
avoid stalling in thermal gusts, (see more below under ‘safety in turbulence’).
One of the Litespeed RX’s high points is its coordination at high bank angles. The glider
can be banked to 50 or 60 degrees while maintaining a low sink rate with minimum pilot
effort. As the bank angle is increased, little or no high siding is required and at higher
circling airspeeds it may be necessary to roll in to maintain the bank angle. To
coordinate a high bank angle, the control bar position needs to be pushed out slightly
more than when thermalling at lower bank angles. Pay special attention to the airspeed
indicator during initial thermal flights. This will give you a good feeling for the relationship
between control bar position, bank angle and airspeed for this glider.
Thermalling with VG
It is possible to thermal the Litespeed RX with up to 1/3 VG and experience a noticeable
gain in sink rate by doing this. However, when the VG is pulled 1/3 tight the glider needs
some high siding, especially at low bank angles. Handling is also quickly lost if the VG is
pulled any tighter. Thermalling with VG is a trade off between handling and sink rate.
Many top competition pilots choose to always thermal the Litespeed with full loose VG to
save energy and provide fast roll rates. The glider will sink better with some VG but also
becomes less comfortable and increasingly difficult to fly. In turbulent conditions, fly with
VG loose to maximise stability and control. Often this increase in control is more
effective for climb rate as a pilot can easily centre and stay in the thermal core.
There are situations when the Litespeed is best thermalled with a small amount of VG,
and we recommend that the pilot experiments with this to find what best suits
them.