ldpace

Yo Chris The pilot can not "legally" fly an aircraft when it has been modified from it's original certified condition unless it has been STCd or had a 337 accomplished. That includes duct tape etc on the wing strut. This only becomes a factor if the FAA pulls a ramp inspection or if an accident occurs and there is an investigation. It will also void any insurance on the aircraft. These things are done all the time, you just need to know the rules and risks.

STC's are designed for a modification that is to be sold/installed on multiple aircraft of the same type. This does require extensive paperwork and testing. It is not applicable for one time mods. The appropriate process for this mod is a Form 337. This is referred to as a "Field Approval". An AP/IA fills out the required paper work and submits drawings. He must convince the FAA/FSDO that the mod will not adversely affect the aircraft's strength or performance. If the FAA/FSDO is satisfied the with alteration, they will approve the installation and may or may not want to inspect the aircraft after installation. This used to be done all the time and was fairly easy, but in the past ten years, due to staffing cut backs by the FAA, they don't approve them like they used to. Discuss the Form 337 with the mechanic that maintains the aircraft and he can tell you the likelihood of success. It varies depending the region of the country and local FAA/FSDO staffing.

This is for a rig that I will own. But, yes I plan to dump above 2500 for a long time. I think I get the message though. I will buy the expert.

What is the difference between a student and an expert cypress. I realize it has something to do with altitudes and rates of fall. When you are just getting your A license which one do you need?