Message posted by Jim1977 on 19/8/2015 at 8:17pm
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Karsten 350 pod SE CA EA FW RA
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Vicdominy, theyre here to stay for sure, but as in4apenny says, those from Outwell, Vango, Kampa, Outdoor Revolution etc are all made of similar polythene tube construction protected by two fabric sleeves. These beams inflate to about 6-10 psi depending on make and rely on the fabric sleeves to prevent them bursting. Some have single inflation point, some have multi inflation point, some have pressure release valves. It's an emerging technology at that price point and each year the systems are changing and no doubt improving.
The Karstens are made of thick rubbery tubes which inflate to 60 psi, twice a car tyre, and 10x the pressure of some systems and use a tried and tested system they've been using since the 1980's.
With all the systems, the airbeams work great in windy weather, no poles to snap or bend, the failures you hear about tend to be failures of the system rather than weather damage (unless you count heat exploding the polythene beams). With guys etc the pitching is quicker but not hugely quicker, it's more a case of pitching being less effort generally and allows you to easily solo pitch a large canvas or polycotton tent.