No shame in not knowing or being unfamiliar! I've actually been learning to use TRF on my phone and it's a learning experience as well, but it has the advantage of easily taking a picture to post.I'm extremely embarrassed to report that due to my age (72) and Paleolithic nature, I do not possess the technology to take and send a picture. I've asked my fellow Boeing retiree Blair, a knowledgeable engineer and close friend, to teach me how to send pictures. I'm going to do this thing!
The good news, all three of my ringtail models are complete, with finish and decals, and are ready for launch. I hope to accomplish that, with Blair's help, sometime in the next 10 days.