I'd be careful with DMarket. Take a look at their ICO thread. Someone found out same team is listed on some other project. And data about two of the team members is switched. And they never explained why. They also mention data will be stored on blockchain. Blockchains are good technology, but one thing they truly suck at is storing large amounts of data. I asked them to explain how they intend to store data on blockchain. And also some unpleasant question about their competition. I think both are appropriate questions an honest team would have no problem answering. And they just ignored my questions. But they have no problems responding to people praising their project. Anyway there was a lot of hype around this project. In their 1st round in August they collected 11 million $ in a few days. But visits to their website dropped by 90% since august. Seems like people are losing interest in this project. The way they communicate with the community doesn't help here for sure.

I don't know industry of flight services and if there's truly so much forgery and corruption in it. So I'm not sure if there would be market for Aeron. But I think they can't really stop cheating using blockchain. I imagine now an airplane to be allowed to fly probably has to have some kind of certificates that confirm it was regularly serviced. Maybe it wasn't serviced regularly but some bribed mechanic forged the papers. And those forged papers get stored on blockchain. It wouldn't make servicing of airplanes more honest, would it? And how would they force airline companies to use Aeron. If they realy are cheating they won't want to use something that will prevent them doing that. About half of the tokens have been sold do far with 6 days to go. Seems it won't be sold out. It will be listed on Binance and HitBTC - good exchanges for quick pump, but since it won't be sold out I doubt there will be enough buyers interesting in buying at above ICO price.