NIVIUK GLIDERS IKUMA 21, User Manual

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We recommend that you try the correct fitting of the acceleration system 
on equipment designed to do this, most paragliding schools have this 
sort of equipment.

2.6 INSPECTION AND WING INFLATION ON THE GROUND

Once you have checked all the equipment and made sure that the wind 
conditions are favorable, inflate your IKUMA as many times as necessary 
in order to become acquainted with the wing’s behavior. The IKUMA 
inflates easily and smoothly. An excess of energy is not necessary and 
the wing will inflate with minimum pressure on the harness when you 
move forward. This may be assisted by using the A lines. Do not pull on 
them; just accompany the natural rising movement of the wing. Once the 
wing is in the 12 o’clock position, simply apply correct pressure on the 
brake lines and the IKUMA will sit over your head.

2.7 ADJUSTING THE BRAKES

The length of the main brake lines is adjusted at the factory to the length 
established during certification. However, the length can be changed to 
adapt to the pilot’s flying style. Nevertheless, we recommend that you 
fly for a while with these, set at the original length. This will allow you to 
become accustomed to the IKUMA and its unique flying behavior. If you 
then decide to change the length of the brake lines, untie the knot, slide 
the line through the brake link to the desired length, and strongly re-tie 
the knot. Qualified personnel should carry out this adjustment. You must 
ensure that this adjustment does not slow down the glider without any 
pilot input. Both brake lines should be symmetrical and measure the same 
length. The most recommended knots are the clove hitch knot or bowline 
knot.

When changing the brakes length, it is necessary to check that they do not 
act when the accelerator is used. When we accelerate the glider rotates 
over the C riser and the trailing edge elevates. We must check that the 
brake is adjusted taking in consideration this extra length in acceleration.

3. THE FIRST FLIGHT

3.1 CHOOSE THE RIGHT PLACE

We recommend that the first flight with your IKUMA is made on a smooth 
slope (a school slope) or in your usual flying area.

3.2 PREPARATION

Repeat the procedures detailed in chapter 2 UNPACKING AND 
ASSEMBLY in order to prepare your equipment.

3.3 FLIGHT PLAN

Draw out a flight plan before take-off in order to avoid possible flight 
errors.

3.4 PRE-FLIGHT CHECK LIST

Once you are ready, but before you take-off, carry out another equipment 
inspection. Ensure correct installation of all equipment and that all lines are 
free of hindrances or knots. Check that the weather conditions are suited 
for your flying skills.

3.5 WING INFLATION, CONTROL AND TAKE-OFF

Smoothly and progressively inflate the wing (chapter 2.6 INSPECTION 
AND WING INFLATION ON THE GROUND). The IKUMA inflates easily 
and does not require excessive energy. It does not tend to over-take you, 
so the wing inflation phase is carried out without anguish. These take off 
characteristics provide a perfect control phase and enough time for the 
pilot to decide whether to accelerate and take off. 

Whenever the wind speed allows it, we recommend a reverse launch 
technique; this type of launch allows you to carry out a better visual