: >This does not appear to apply to experimentals; only certified aircraft. >Ron +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
While many regulations that apply to "certified" aircraft ( E-AB is also a class of certification) do not apply to experimentals, they were applied for a reason, safety. Being certified "experimental-armature built" does not allow us to escape the laws of physics. Our props will ding as easily as any other class of certified aircraft. I added 5 inches to my gear legs to give me 9 to 10 inches of clearance for my 60 inch prop on the 0-200. While we are not required to follow all the reg's, they should be considered an excellent guide and consider well the consequences of non-compliance. You can't fool Mother Nature.................. Larry Flesner