In a recent long Unirac U-LA design we did two separate racks, one behind the other to create a seamless appearance, but physically separated to meet wind speed requirements. You may want to consider it two racks of 10 modules, not physically connected. If you are precise it will look like one long rack. In addition to wind, you will have to consider thermal expansion - possibly another reason to separate into two racks.
You could use L-Feet back-to-back with Unirac Solarmount rails. To create the tilt you can use Unirac's tilt legs, or custom cut and drilled 2" structural aluminum angle. Jason Szumlanski Fafco Solar -----Original Message----- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of jay peltz Sent: Saturday, November 20, 2010 8:09 PM To: RE-wrenches Subject: [RE-wrenches] long ground mount Hi All, Say and recommendations for a long 70' single row ground mount base structure. 20 modules in Portrait. What I've done in the past is deep unistrut, but for something 70' long I thought maybe there is some other ideas out there that folks have done and like. thanks, jay Peltz Power PS client is very set on this style of racking. _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org