Doug from Colorado writes:
"This is the cockpit portion of the airframe for my home built experimental helicopter. It's a single-place design based on a 300 HP Allison turbine engine from a military helicopter. Having three times the power of some experimental helicopters allows me to include more safety features such as this race car inspired all 4130 tube airframe. I used my Lincoln® Square Wave TIG 255 (current model Precision TIG® 275), to TIG weld this section together using stainless steel filler rod. Tubing pieces were fish mouthed on a CNC mill for ease of welding and best fit and finish."
*The above project images and descriptions have been published to show how individuals used their ingenuity for their own needs, convenience and enjoyment. Only limited details are available and the projects have NOT been engineered by the Lincoln Electric Company. Therefore, when you use the ideas for projects of your own, you must develop your own details and plans and the safety and performance of your work is your responsibility.