Uh, I save every plane. Except duplicates. I even save historic versions. Then again I do have 1TB of storage…

Me

I 75% of the time save them and the rest of the time just post or they are just lost 5ever.

I only fly a couple of my own planes, but I save most if them

i upload my best/most interesting completed creations but i have a lot more saved than uploaded. i have more than 50 saved machine

i just delete them after i upload because i know theyre safe being online (online cloud storage free! unlimited! XD ) I DELETE THEM BECAUSE THEY CLUTTER THE AIRPLANE LIST

I save them so I can access the XML. I also fly and test them extensively before releasing.

I usually hold my planes till I make a decent replacement for them. They often undergo experimental modifications. That's how my Delta Falcon was created. I was messing with my Platinum Falcon, strapped cranked arrow wings on it, tested it, and uploaded it. Same goes for my other builds. I reuse ship hulls, truck chassis and so on.

I keep them all

@Mox oh yeah. Iv never thought about my phone storage.

I save some of them, but usually i delete them to make more room for storage on my phone.

@Feanor my resent plane took 5 days to adjust.

@Feanor same.

Me, most of my aircraft actually undergo a few hours of flight tests.

Shhhhh... I know I made a typo in the title.