Advance acoustic IOTA DLS, Product Manual

To recover keep the neutral sitting position and progressively release the inside brake. Your body weight will be 
somewhat tipped to the outside. While coming out of a spiral dive of high vertical and rotational speeds some 
assistance with outside brake is essential. Careful releasing of the inside brake will prevent the wing from 
recovering too quickly, thus pitching back excessively before diving in front - if the turn stops with too much 
speed remaining. Make sure that you start the recovery with plenty of height above the ground. Generally speaking 
you should allow the same amount of time to recover as it took to enter the manoeuvre, but remember that the 
vertical speed will be higher, and much more height will be used!

Warning

The IOTA DLS only comes out of a spiral dive by itself if the pilot is in a neutral sitting 
position. From a steep spiral with a high sink rate – more than 14 m/s – recovery requires 
active outside brake with weight shift to the outside at the same time.

Warning

Weight shifting to the inside of the turn results in increased acceleration and stable 
continued rotation. In this case, active counter-braking with simultaneous weight transfer 
to the outside of the turn is required to end the manoeuvre (push your body outwards).

Warning

The IOTA DLS is approved for harnesses in group GH (without rigid cross-bracing). 
Harnesses in group GX (with cross-bracing) or those with very low suspension points 
(carabiners) may drastically change the flying characteristics in a spiral.

Warning

Do not fly spiral dives or aggressive changes of direction with big ears applied: the raised 
wing loading carried by fewer lines can damage the glider.

Warning

After recovering from a spiral dive it could be that the pilot flies into turbulence that he 
has caused. Fly actively to prevent a collapse.

4.6.3. B-Stall

The whole paraglider structure and its profile shape would be severely strained by a B-stall. We recommend that 
you do not carry out B-stalls on a regular basis. If you do fly a B-stall the recovery requires that the B-lines are 
completely released without hesitation, so that normal flight is resumed within 2 seconds. B-stall is difficult for 
light pilots because of the high force required. is a further small effect of increasing the angle of attack, as well as 
there being a lower airspeed because of the reduced wing loading. 

4.7. Stalling

4.7.1. One-sided stall (spin)

When circling tightly in a thermal the IOTA DLS indicates clearly, by strongly increasing brake load, the risk of a 
stall. Even so, if a wing does stall you will feel a marked reduction of brake load on the inside of the turn. If this 
happens you must immediately release both brake lines, so that the IOTA DLS can return to normal flight by itself.

If a wing stalls completely the paraglider will go into a spin / negative rotation. The IOTA DLS will react 
dynamically, but will still be manageable by the less experienced pilot. Even so – depending on the situation from 
which the paraglider is allowed to fly again – the reaction can be quite vigorous (shooting forward with a raised 

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