Im Gong Forum
https://www.gong-galaxy.com/forum/vi...11504&start=45
gibt es eine neue Aussage vom Chef persönlich.
Hier eine englische Übersetzung aus einem anderen Forum:
Gong made an interesting post yesterday: they identified the cause of at least half of wings explosions while inflating. And it seems it can happen for any brands, so I guess it deserves its own topic.
In a nutshell: they recommend taking some simple caution when inflating that the bladder is not stuck to the cloth by moisture, like you do when you change a bike air chamber, you inflate it a bit to be sure is does not get stuck between the tire and the rim and explode when inflating...
Patrice Guenole' writes:
it's a real subject that explains a lot of explosions: when you roll a wing, the bladder in the batten or the leading edge can move and that's normal. Except that when the Wing is soaked, the bladder can get stuck by suction at the wrong place in the sheath. It sticks 10cm further than its normal place for example. The next time it is inflated, the bladder is put under tension and may explode as a result of this movement and tension.
This phenomenon has been neglected for a long time because it didn't happen with Kites. No reason to imagine that this problem would happen with Wings.
But a Wing is different from a Kite:
1/ It is always wet. What is rarer in Kite is a constant in Wing. If only to get in and out of the water.
2/ The diameter of the bladders is two to three times bigger, leaving a lot of room for the bladder to move in the sheath when you deflate.
The solutions :
A/ Try to roll your Wings only when they are dry. But this is often impossible.
B/ Unroll your wing completely flat before inflating. Do not inflate them while they are still rolled up.
C/ Gently shake the struts before inflation to remove the bladder from the fabric. Gently.
D/ Make sure that the bladder is not wrinkled during the inflation process: you can see this at half pressure.
E/ At the slightest doubt, deflate and re-inflate. It takes one minute.
The bladders are made custom for each strut and each leading edge of each Wing. Nothing is standard. And we can't lock them in place because they have to be removable and light.
So to this day, only being aware and cautious can protect you from this problem.
Reminder: do not rinse your Wings with chlorinated tap water as this would remove the chemical protection of the fabric, thus its strength and durability.
Be vigilant because it is estimated that one out of every two explosions comes from this concern.