Late, as usual, but I’ll chime in.
I’m a private pilot (helicopter, although I have a fixed-wing rating as well). I didn’t go to the side (above), but I read an article in a flying magazine a while ago that said the banners were picked up after the aircraft is in flight. IIRC, there are a couple of poles that have the tow-line suspended between them. The airplane somes in low and slow and hooks the banner. Also, IIRC, the tail-end of the banner is weighted to keep it flying correctly.
Many, if not most, pilots who want to fly for a living aspire to fly with the airlines. This takes a lot of hours. Since airplanes are expensive to rent, these pilots often take low-paying jobs such as flight instruction or banner towing to build hours. That is, they get to log a lot of hours and a little money in exchange for doing a job they probably wouldn’t rather be doing.
I don’t think you need to be wealthy to own a plane. My dad had two of them on a government salary. You can buy a mid-70s (most of the fleet was built in the 70s… at least a large number of planes were) Cessna 172 (a popular 4-seater) for about $40,000. That’s on a par with many SUVs. What bites you in the billfold is the maintenence. If your aircraft is used commercially, it needs inspections every 100 flying hours plus a more-comprehensive annual inspection. (The annual can take the place of a 100-hour inspection.) Aircraft using Lycoming engines need to have their engines rebuilt every 2000 flying hours. Continental’s TBO (Time Between Overhaul) is about 1,500 or 1,600 flying ours I think.
If you’re using your aircraft for personal flying (i.e., you’re not using it commercially) you can skip the 100-hour inspections and just do the annual. If you fly 300 hours per year (a figure I’ve heard as the “break-even” point for owning vs. renting) you’ll get almost seven years between overhauls on the engine… if it makes it to TBO. Sometimes (though not too often) they break down or need an overhaul before TBO. Everything that goes into an airplane has to be certified; so even though that starter is exactly the same as the one they use on a Buick, you’ll pay through the nose for it because it needs the little FAA stamp on it.
Of course, airplanes use low-tech engines. The basic design is from the 30s. The good thing is that the engines are very reliable. The bad thing is that they are not as efficient as the computer-controlled powerplant you have in your Honda. Airframe and engine manufacturers are very conservative and it’s hideously expensive to certify a new design; so the engines are slow-turning, large-displacement engines like the ones your grandfather used.
Being relatively low-tech, they burn more fuel than, say, a Geo Metro. Just a ballpark figure, but I’m thinking about 10 miles per gallon. And avgas costs considerably more than mogas. (There are diesel engines in development that will run on jet fuel, which is much less expensive than gasoline.) But remember: You’re scooting along in a straight line at 130mph. Aircraft use gallons-per-hour instead of mpg.
Okay, that’s the bad news. The good news is that the overhauls, inspections, etc. can be planned for. Just add X dollars to your hourly cost of fuel and oil to cover maintenence, tie-down insurance, etc. and you’ll have the money available when you need it. It takes about 2 hours to fly a Cessna from L.A. to Las Vegas. How long does it take to go to LAX board an airliner, and then fly the 45 minutes to LAS? How much is your time worth? Also, you’re not bound by an airline’s schedule. If you want to stay another day, or another hour, there’s not “ticket alteration fee”.
Yeah, it’s expensive to own a plane; but you don’t have to be wealthy. You could drive your old car and fly a plane instead of getting that new BMW. Can’t afford $40,000 cor a Cessna 172? Maybe you can get by with a $25,000 Cessna 150. Or an America (Grumman) AA-1.
I’m not wealthy, or even “comfortably well-off”, but the only reason I don’t own an airplane is because I have this affinity for helicopters. Now those are expensive! Oh, well. Maybe I’ll win the lotto? Or get an airplane instead…