Airplane photography is what I usually do. It involves going to airports and taking pictures of aircraft on the ground or landing and taking off. Aviation photography is more akin to the work of a professional photographer, and can include such diverse subjects as "How an Aircraft is Serviced", or a "A day in the Life of an Airport Security Guard" for instance.
By my own definition (and someone with a business background can confirm this), profit is what is left after operating expenses, wages, benefits and other items are taken out of revenues. Profit is also what is necessary in the eyes of the I.R.S. (here in the States) to remain in business. Once you are considered to be a hobbyist by the I.R.S., your business tax structure goes away, and you cannot claim the purchase of that nice digitial camera as a business investment.
I bring this up to make you question if you are really writing about the subject of aviation photography as you described it-or are you writing about it as you would like it to be? Unfortunately, these are ideals, and they can be very different from each other. Anyway, that's how I see it after pushing the shutter release button for a few decades.