In article . net,
"Douglas Olson" wrote:


Fixed Costs/year
Insurance 1,500
Tie-Down 900 (at my airport)
Annual 1,200 ("minimal surprizes" for 100 hours?)
Total Fixed 3,600

Hourly Costs
Fuel 23.31 (7.9g/h x 2.95/gal)
Overhaul 10.00 ($20,000 / 2,000 hours; engine overhual only, not
prop)
Reserve 15.00
Total Hourly 48.31

At 100 hours/year that's $4,831 + $3,600 = $8,431, plus the capital and
opportunity costs of buying it.
Opinions?

(I have a 1974 140)

$1,500 for insurance? fwiw - mine is something like $940.

Don't forget costs of upgrades.

Don't forget cost of oil change every 4 months or 50 hours, whichever
is sooner.

Every two years is the pitot-static check. What's that, something like $200?

Does your airport have any required fees for badges, background checks,
and other fear-of-the-boogieman "security" measures?

Some people take into consideration calendar time wrt TBO. So, based on
the lycoming recommended calendar time of 12 years, the overhaul cost
per year might be, say, $1667 rather than your $1000.

Otherwise, the numbers look pretty conservative.

Cost of money wouldn't be part of the calculation unless you weren't going
to spend that money on anything else except the airplane.

--
Bob Noel
no one likes an educated mule