Seeking Feedback on Aviation Startup Idea

I'm working on an aviation-related startup and would greatly appreciate your insights. While I can't disclose all the details, I'm looking for advice on entering this sector.

Questions:

What key factors should aviation startups consider?

How do you approach seeking feedback from large corporations without them stealing your idea?

Any tips for getting in touch with industry players like airlines for opinions?

Your expertise matters, and I'm eager to learn from this community. Thanks in advance for your input!