Normal
Re: Another flying issueThe ratchet strap at the rear pulls down on the rear member of the top rail, offsetting the pull of the speaker load, and depending on the tension of the ratchet strap, puts a compressive load on the rear member of the truss. Not that it is needed for that purpose, the tension on the rear member wouldn't exceed 700-800 lbs, a relatively modest number compared to using the same truss in a horisontal configuration and loading up with lights and stuff. As a rod by itself is less likely to fail under tension than in compression, I wouldnt worry about the tension stress anyway. The rear ratchet strap stabilizes the whole construction though, and the combination of tension and compression along paralell axes go a long way in providing for a very stable construction.
Re: Another flying issue
The ratchet strap at the rear pulls down on the rear member of the top rail, offsetting the pull of the speaker load, and depending on the tension of the ratchet strap, puts a compressive load on the rear member of the truss. Not that it is needed for that purpose, the tension on the rear member wouldn't exceed 700-800 lbs, a relatively modest number compared to using the same truss in a horisontal configuration and loading up with lights and stuff. As a rod by itself is less likely to fail under tension than in compression, I wouldnt worry about the tension stress anyway. The rear ratchet strap stabilizes the whole construction though, and the combination of tension and compression along paralell axes go a long way in providing for a very stable construction.
