Hi, After my last hair brain scheme to simply tape a digicam to a Estes Big Daddy, I decided to build a custom airframe. Find the full details here. All I had lying about was some 40mm tubing, thus why it is stuck onto a Big Bertha. Plans are afoot to build a D powered lifter If the wind ever lets up, I'll fly it and post video (If I recover it - and it actually lifts off the pad). Steve. South UK.