lml@lancaironline.net Mailing List Archive

<<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Hi- I'm working on a 320 with an outback gear. The manual only describes the standard gear in any real detail. My question: With the clearance with the tire and the closeout rib and holding two inches outboard from the bearing in the GM4 main gear alignment bracket this establishes the inb and outboard distances for the belly pan cut out but there is nothing to define the fore and aft distance. My best guess is to hold the cutout pattern flush with the aft side of the GM4 bracket to allow clearance for the main gear center link assembly. Is this correct? Thanks! Rob [The GM4 bracket should actually go flush with the outboard end of its phenolic mounting pad. This was the advice I received from the factory when I was installing the standard gear. You may find that this will give you some additional room to move the gear outboard, thereby creating additional space in the cockpit because the closeout rib will now move outboard slightly as well. As for aligning the gear door pattern I found it easiest to place the pattern on the inside of the bottom wing skin under- neath the gear assembly, and then sight down all around the gear to make sure that everything has enough clearance to make it through the doors. Don't forget that you're going to need to consider wheel alignment as well, so you may be moving the GM5 (aft attach bracket) slightly in- or outboard as well to achieve the little bit of toe-in required to provide good handling. I guess the bottom line is that the gear door patterns are an excellent starting point, but you may find that you'll need to modify the inner BIDs that they seat against once you get to looking at gear alignment. I hope this helps. <M>]