There is someone over a BJ.com questioning whether vents/valves are useful. He "heard" from someone who claims to have tested the opening heights at the Perrine and determined that the opening height between vents/no vents was 6'. I'll call complete bullshit on this on.
First, who did the testing, and how were they able to measure opening heights within a few feet?
Second, opening height and height of a controllable canopy are 2 different things.
Third, if you have either experienced first hand, or seen a vented vs an unvented canopy hit an object, you know that there is no question that vents keep the canopy inflated much better. During a strike the vents continue to allow air into the canopy to maintain pressurization, thus saving your ass.
Another silly post brought to you by Bj.com. Remember, there are people out there who really believe this stuff. Hope they aren't on your next load.



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