A quick question to all flying RV-12 drivers. Do you fly with the wing tie down rings attached, or do you always remove them before flying?
What is best practice here?
Thanks a lot
Chris
What is best practice here?
Thanks a lot
Chris
Yep, better remove any dissimilar junctions throughout the airplane!
ExactlyGood Hint! Yes electralisis still exists!
All the other steel parts are coated, including the nutplanes and don't cause dissimilar metal corrosion.Including all nut plates.
TD rings slow me down about 15 knots,,,, I think...... feels like it anyway.....
I see many that are concerned about corrosion live in some humid and wet environments. Out here in Phoenix with a hangar I haven?t seen any corrosion issues on my Cherokee (29 years here) or my RV-12 (6 years). However, I used to worry about glass transition temperature when I had a WAR FW-190 at summer air shows sitting on the ramp.
Doug,
The older fiberglass epoxies lost strength if overheated. The critical temp was called glass transition temperature, and 30 years ago people tried to avoid painting dark colors on the fiberglass so it wouldn?t sit in the sun and lose strength. In Phoenix we can actually fry an egg on a dark surface on the worst summer days. GTT was something you had to think about.
Very very nice Joe. Much better look than those cheesy steel loops I got Lowe?s aviation supply. So...what would a fellow -12 builder have to spend to obtain 3 of ?em? If you just want to ?rough them out? then I?ll do the finishing and polish.
I see no radius at the base of the threads it should have one there and another thing is the sharp root of the threads will be a weak point. If you notice the tie down ring shown it has rolled threads with no sharp root. Also if one uses a thread lube such as copper coat on the threads will take care of things.
Doug,
The older fiberglass epoxies lost strength if overheated. The critical temp was called glass transition temperature, and 30 years ago people tried to avoid painting dark colors on the fiberglass so it wouldn?t sit in the sun and lose strength. In Phoenix we can actually fry an egg on a dark surface on the worst summer days. GTT was something you had to think about.
So still no radius at the end of the threads and the threads are still sharp in the root. Every one on here worries about stress risers in scratches which are the same. Not putting down your design just saying that its a stress point when side loaded.
This thread ponders the the all-important question "Flying with or without wing tie down rings" and has 3,213 views and 33 replies.
The thread titled "Official Sensenich Propeller FAQ/Service Bulletin Revision B" only garnered 1,043 views and 6 replies.
Aren't folks worried about their props falling off?
Maybe its just the times we're living in...