Gin Nano 4, User Manual

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Nano 4 user manual

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   Always try to avoid the need to use descent techniques. Thoroughly check the conditions

before launch, and pay close attention to how the day develops.

Spiral dives

The spiral dive is the most effective method for making a rapid descent, and can allow sink

rates over 30 m/s. Spiral dives attain higher rates of descent, but the g-forces can be

significant and the  manoeuvre is technically demanding.

 Before entering a spiral, make sure you have adequate height for recovery. To enter the

spiral dive, weight shift and progressively apply the inside brake until the glider enters the

spiral. As the glider accelerates into the spiral, centre your weight and control your rate of

descent with weightshift and outer brake.

    To exit the spiral, check your weight is centred (or slightly towards the outside) and

progressively release the inside brake. As the glider starts to exit the spiral, you may also

choose to reduce the pendulum moment by briefly re-applying the inside brake. Be aware

that the skis on your feet add momentum to your body and that there is a higher risk for twists

in abrupt turns.

   Deviations from the carabiner distance, unapproved harnesses or spirals with excessive sink

can change the maneuver considerably; pilot action may be required. In such cases, exit the

spiral by weightshifting to the outside and progressively applying the outside brake.

WARNING: In the spiral dive, very high turn speeds can be reached with an increase in

acceleration due to gravity (up to over 6g), so exercise care when attempting this

manoeuvre. Take note of the following:

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The high g-forces experienced in steep or prolonged spirals may result in

disorientation or even loss of consciousness.

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Always maintain ground clearance of 150 – 200m. The manoeuvre must be exited

at this height above ground.

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Do not attempt to enter a spiral dive while in big ears. This places excessive forces

on the speedrider and may result in structural failure.

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Frequent steep spirals may cause premature aging of your wing.

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Due the small size of the Nano 4, height loss in spirals is significant.

WARNING: You must immediately deploy your reserve if you lose control of the glider and

the sink rate and find yourself in a stable spiral. The high g-forces in the spiral may rapidly

lead to a loss of consciousness which prevent later deployment of your reserve.

B-Stall

Big ears are not recommended with the Nano 4.

Big ears

B-Stall is not recommended with the Nano 4.

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