The
two ends of the control bar (or "modular bar" as Advance calls
it) are connected to the centre section via fully articulated joints.
The main lines attach to the centre section and the brake lines attach
to the extreme ends of the bar. The two brake lines have a line connected
to a wrist leash which operates the VERY effective safety release system.
Where the lines attach to the kite's bridle, as the bar is released the
brakes are applied up to a point where the line hanging down in the right
hand image above goes tight. The system is one of the most impressive
features of the Rhea package.
In
the smaller sizes such as this green 4m the control bar works very effectively
and the 4m turns very quickly. Although the bar is a little longer for
the 10m kite turning response is fairly slow, particularly in very light
winds. The 10m kite is reasonable heavy (there's a lot of it !!) therefore
in a light wind it tends to sink rapidly towards the edge of the wind
window and I feel that the bar does NOT have enough leverage to pull the
kite back into the centre. This characteristic is easy to understand since
the main lines are far too close together on the bar which obviously limits
how far they can be pulled !! Now - because the ends of the bars can be
moved independently of the centre section it is possible to apply a brake
to turn the kite quicker but this is awkward since you have to move the
whole hand up to the end of the bar past the main line attachments.
So - whats
it like to fly ? - The 10m is sluggish in a light wind (e.g. 5-8mph)
and there is power but it doesn't fly in these winds anywhere near as
good as my 7.2 Blade. In a slightly higher wind e.g. 10mph+ the speed
, response and power improves. Advance actually state a recommended
wind range of 10 to 20 knots. The Rhea has a tendancy to overfly which
can be tamed somewhat by tightening the brakes but its not as stable
and forgiving as a Blade. Acceleration up through the wind window is
impressive but the huge momentum of the big kite causes it to fly over
the zenith - not unlike some of the large inflatables. It takes time
to get used to and still catches me out occasionally !! The turning
response is not particularly good as mentioned above - its best to intiate
a turn well before the kite reaches the edge of the window otherwise
it will continue to slide down. Re-launchability is very good and reverse
launches are easy by pulling on both brakes i.e. pull on the linking
line between the brake line attachment points. In terms of absolute
performance the 4m Rhea aquitted itself very well against other 4m kites
in the "shootout".
General views and conclusions - the overall construction is excellent
and the short lineset is prestretched, equalised and sleeved. Inflation
is fairly rapid after the first couple of flights and there is a velcro
flap on each wingtip to aid deflation. The safety release system is
superb and well engineered. The articulated (modular) control bar is
"interesting" but the limited leverage offered by the centre
(fixed) section of the bar is a concern for the larger size kite. I
propose to experiment with a standard straight bar with the main lines
attached at the ends of the bar and the brakes inwards of these points
but still retaining the safety release system - full report as soon
as possible when conditions permit. This should also permit a simple
THREE line set up to be used ?
A
few shots of the 4m Rhea which is fast and turns very well - it still
displays some of the larger kite's instability and tendancy to overfly.