As someone that is also a student and considering this, here is what I'm finding. Your mileage may vary.
Fixed costs after you buy:
Insurance - you can get a quote on this, but if the plane is fixed gear, it won't be bad. I was quoted 2,500 per year on a Cherokee 6 with only five hours in my logbook.
Hangar or tie down - just check with your local airport. Mine is 144 tie down and 440 hangar per month. This is on the high end nationally, but you can find this price exactly.
Registrations, elt, pitot check, fir cert, etc, I'm figuring $500/year
The above costs are pretty solid and can be looked up for your airport and aircraft before you buy. In my case this is all about $5,500 a year before I fly the plane
The following are more guesstimated.
Annuals can be approximated, especially if you're willing to travel a bit for them. To put a number here for the plane I'm considering, I'll say 3k, but many folks get pa28s and 172s done for around 1,000 with owner assistance
Also, you'll have squawks, I think many of these will be there whether you fly 20 or 200 hours a year. Door latches, lights, knobs, adjust rigging, ad nauseum. You may be able to lower these costs working with the right a&p and assisting them. For me, I'm calling this 3 grand a year on a 45 year old plan with me turning no wrenches.
So for me, I'm estimating 11 k before I fly.
Now let's go fly. Gas on a 172 9gallons an hour times 5 bucks a gallon. Or for the plane I like, 15 gallons at 5
Add in for oil consumption and changes.
You may choose to add sinking fund for engine and prop.
Now compare renting. I'm trading in a 172 that is 140/hr wet. The planes are booked out months in advance, so I'm working on steep turns in twilight at 5 pm because that's the only time I can get a plane.
I really want a plane post short cc, but have other family priorities that will delay it.
Best is probably a 2-3 way partnership, so the 11k plus the squawks are split in 3 (14k / 3 is 4,600)
If I partner, I can fly 40!hours for 4600 plus 3000 for gas so 190/hr.
If I owned it myself, it's 425/hr.
All of these will vary, and so much depends on your area of the country and the plane.
If your tie down is 50' insurance is 1000 per year and annuals are 1,000, then you can be a solo owner, but around Seattle, it seems really expensive
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