fees
I've written a couple of articles for non aviation hobby mags and illustrated them with photos too. They have paid around £25 per page, so it may well get you a few beer tokens for your trouble.
Another criteria they look for is an enthusiasm for the subject matter so the article is readable by all the purchasers, and not too 'dry'. I also found that if the editors like what you write, and your style, they will readily accept other work for consideration. They will have a programme of articles already, so if your articles about winter flying for example, time its submission so they can get it into the magazine schedule. I have had work published within two months of submitting it, and requests, (note, not commissions) for similar articles.