Where did I say was trying to justify the cost of flying over driving? I was always going to fly in, for all the intangible reasons mentioned. I never did a cost comparison ahead of time. That's why I subtitled the thread "a little surprising;" the actual numbers did not back up my assumption. I was surprised it was even close.
I think I agree with
@Jayboard. It is interesting that your actual OSH expenses came out very close to expenses as if you were running your own business and claiming them. But this trip was not in any way business and using the gov't base depreciation might work for one person but totally not for another. The tesla case (above) was interesting
Here is a example workup if the my daughter, wife and myself flew the 182 vs driving the 4runner to OSH and stayed on then field:
Example Trip: 900sm each way, 3 people and 3 days at destination.
- Both options are camping
- Flyer gets free on-field camping, vehicle needs to pay camping fee
- Both options using same same food at destination
- No rental car needed during stay since destination is the airfield
-
Vehicle people use two more vacation days!!!
Airplane:
- 900sm x 0.84cents/sm ==> $756
- 1 food stop for 3 people ==> $50
- Total One Way ==> $806 each way
- Total Round Trip ==> ($806 x 2) ==>
$1612
Vehicle:
- 900sm x 0.37cents/sm => $330
- 3 food stops => $150 (for 3 people)
- 1 Hotel with breakfast => $175
- Total One Way ==> $655
- Vehicle Campsite ==> $40/day
- Total Round Trip ==> ($655 x 2) + (3 X $40) +
(2 x Extra Vacation Days per person) ==>
$1430 + ?????
I am sure I probably missed something along the way (see basis below). I used a vehicle type that is very dependable with rather low depreciation and enough room for all camping stuff. It is lower MPG so if you drive something that gets better mileage the gap will widen a bit. The most obvious difference is the extra day required each way going by vehicle and therefore a hotel room, more meals and the need for two extra vacation days. What isn't included is if the flyers suffer a wx delay they also incur vacation loss, possible rental car and hotel as well. Or they cut their stay short due to wx and have less of vacation.
Basis For Each:
Airplane (1972 182P Owned):
- We fly ~100hrs/year
- Average 13gal/hr (includes climb out), 3hr leg x 150mph ==> 450miles. Fuel = $5.50/gal.
- Fuel = $72/hr
- TBO = 1,500hrs, rebuild = 50,000 ==> $34/hr
- Insurance = $1100/yr ==> $11/hr
- Hangar = $1200/yr ==> $12/hr
- Annuals = $2400yr (avg over 5 years) ==> $24/hr
- Non Annual Repairs 1000yr (avg over 5 years) ==> $10/hr
- Hull appreciation (182's increased nicely!) $30,000 over 5yrs ==> -$60hr will use -$40/hr
- Hourly cost: 72 + 34 + 11 + 12 + 24 + 10 - 40 ==> $125/hr
- Price Per Mile: 84 cents
Vehicle (2018 4Runner Owned)
- About 18,000 miles per year
- 18mpg highway for long trips.
- Fuel = $4.00/gal
- Oil Changes, Tire Rotation, Preventative Mx per year $600/yr
- Insurance $800/yr (part of a multi-car and home policy)
- Depreciation ($28K ==> $36K in 2 years!!!) but lets use $28K to $17K over 10 years or $1100/yr
- Total Yearly Cost: $4000 fuel + 600 mx + 800 ins + 1100 dep ==> $6500
- Per Mile Price: 37 cents (rounded up)