User Manual

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Ballast
The clean lines and the low frontal area of the Ninja allow it to penetrate winds in the 10-20 m.p.h. range without ballast.
However, when flying in winds of excess of 20 m.p.h. some ballast may be needed. Stick-on lead weights are ideal for
adding ballast. Simply press them in place inside the fuselage directly over the C.G.
Aerobatics
Slope soarers don't have engines to pull them through aerobatic maneuvers like power models do, so we have to rely on
the lift and the speed of the model to perform aerobatics. Always pick up speed by diving the model before entering a
maneuver. The amount of speed required, depends on the maneuver and the available lift. If you are new to slope soaring
make your maneuvers into the wind at first until you feel comfortable. Aerobatics with the Ninja are a snap. It will do any
maneuver in the book and then some.
When the Sig Factory Fliers go to the slope, we have a blast making up new aerobatic "maneuvers" on the spot. For
instance, how about our death defying "Chicken Immelman" - start by diving straight at the hill, wait until the last possible
second, then pull up into a quick half loop and roll out at the top. Crazy, but not boring! Or how about a "Reverse
Corkscrew" start real high, dive straight down (We mean straight!!!), performing two aileron rolls on the way down. Then
quickly pull the airplane straight up! Try to get in two more rolls before running out of airspeed. Tons of fun!!! If you come
up with any, new ones, let us know.
Landing
To make a landing approach, start with a fair amount of altitude, then fly the model slightly behind the crest of the slope,
and try to fly a steady descending path right down to a landing on top of the hill. If you are too high on your landing
approach, make S-turns to lose altitude or go around and try it again. Most slope soaring sites create an air turbulence on
the back side of the hill. Avoid getting caught in this turbulence as it might cause you to lose control of your model and
crash.
NOTE: When flying at established sites, check with the local flyers to determine what is the best approach for landing at
this site.
Flying Off A High Start Or Winch
Launching the Ninja from a high start or winch is as simple and straight forward as launching any sailplane. Although most
of the flights are short in duration, they can be quite exciting while doing loops, rolls, inverted flight, and other aerobatic
maneuvers. Install a tow hook in the bottom of the fuselage 3-1/2" back from the fuselage former F-2. During periods of
strong lift, it is possible to thermal the Ninja with flights lasting over 15 minutes.