DAVINCI GLIDERS / JAZZ
6
15pt
6. Accelerator system
7. Trimmers
The accelerator has being limited in travel up to a safety point, however you can gain 8-12
km of extra speed.
You have to adjust the harness to the speed system so you can use all the speed travel.
To do so you have to be seated in the ground meanwhile you are in your harness and adjust
the lines by pulling up the risers with tension. Another person help to do this is recommend-
ed. Make sure also that the pedal is not pulling down the risers when you are not using it.
Once all the gear is rigged you have to test the whole speed travel in calm air.
The use of the speed system reduces the angle of attack and the canopy may be more sen-
sitive to collapses therefore do not use near the ground or in turbulent air and in case you
are hit by turbulence remove your feet off the pedal bar as quickly as possible.
The JAZZ is supplied with a trim riser set. The ‘neutral’ or standard position is when the
trimmers are pulled all the way down and A/B/C riser lengths are equal. We recommend
performing landing and take-off with the trimmers closed.
The standard trim setting is ideal for climbing under power and when the air is turbulent.
Brake pressure is lighter and the handling at its best in the standard trim setting. To in-
crease cruise speed you can use the speed system, release the trimmers, or do both. Using
the speed system has exactly the same effect as releasing the trimmers so it is safe and
possible to fly with the trimmers in the standard position whilst using the full range of the
speed system.
Unlike the majority of reflex PPG wings, to increase cruise speed you can use the speed
system, release the trimmers, or do both.
It is not necessary to release the trimmers before accelerating. Using the speed system has
exactly the same effect as releasing the trimmers so it is safe and possible to fly with the
trimmers in the neutral position whilst using the full range of the speed system.
In turbulent air the reflex profile is very stable. It will resist reasonable levels of turbulence
with a high resistance to collapse without pilot input. The faster the wing is flown the more
inherent stability there is, as the reflex has a greater effect. In mild turbulence it may be best
to not attempt to fly the wing actively and let the profile absorb the turbulence itself, indeed
small applications of the brakes can reduce the inherent stability of the profile. However
in very strong turbulence, we recommends to return the trimmers to the neutral position
(pulled down) and flying the glider actively. This way, you will be in the best position to react
correctly should an incident occur.