My carriage keel has a square aluminum tube that is flat on the bottom and I use a standard flat adhesive GoPro mount for this. I use a lanyard here also as described above. You can see some video taken from the bottom at this link: http://www.youtube.com/watch?v=voQGcLjnEPU
We landed at Mineral Canyon to look over the wings (now frost free) and to clean a smudge of dirt off the gopro before heading out an amazing hour long flight up the Green River.&nbs...
...1.5 hours flight along the edge of a lava flow with a geologist in backseat of my trike. No film crew onboard, they just mounted a bunch of GoPro cameras on our trikes and gra...