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Light Twin Operating Costs

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Old 11th Sep 2009, 12:09
  #41 (permalink)  
 
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... for the twin time!
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Old 11th Sep 2009, 12:56
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Maybe that's why some of them fly slowly.
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Old 11th Sep 2009, 12:59
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especially if its OPM you are burning!
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Old 12th Sep 2009, 01:35
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3 x Fuel

So... in the end; three times the fuel cost is a pretty good approximate of the operating cost then! It is close to what the two singles I currently fly are worth and we're paying $2 - 2.50/L right now.
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Old 12th Sep 2009, 03:32
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After all these replies, and we have come back to this ...... a guess, - an approximation.

Okay, for an older aircraft operating in the territory, - I am sure you will be losing at that. And big time.

To really cover your costs you need to have the spreadsheet as the guys here have suggested.

The maintainers won't tolerate an operator trying to fly an aircraft on an unrealistic budget for too long. The industry is very small and whispers of 'unpaid bills' spread very quickly.

Many hangars will refuse to accept a job if they suspect there may be money issues, or if the owner tries to dictate maintenance standards.

You really do need to do your homework...... I think you can see the range of answers you get when you ask a bunch of wannabes. Don't forget that a few of the guys here have never owned an aircraft.

If you end up buying a POS aircraft, and/or, employ a pilot with no idea how to operate one............ the costs could be crippling..
How do you factor that into your calculations and end up with a figure that looks half reasonable ?
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Old 12th Sep 2009, 03:35
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three times the fuel cost is a pretty good approximate of the operating cost then!
As a rule of thumb it works pretty well on piston engined aircraft

To work out a ball park fuel consumption figure per hour I divide engine horsepower by 20
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Old 16th Sep 2009, 06:49
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I thought I was your boss

So who are you working for now????
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Old 16th Sep 2009, 07:35
  #48 (permalink)  
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To work out a ball park fuel consumption figure per hour I divide engine horsepower by 20
In US gallons - not liters!
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Old 16th Sep 2009, 08:31
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To work out a ball park fuel consumption figure per hour I divide engine horsepower by 20
285 hp/20 = 14.2 US gal = 54 L/hr

Bit low for the Bo - but close!

I flight plan 60 L/hr and generally average about 55 L/hr depending on the length of the flight.

Dr
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Old 16th Sep 2009, 11:07
  #50 (permalink)  
 
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In US gallons - not liters!
Sorry Tailwheel , I'll quote the units in future
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Old 16th Sep 2009, 11:38
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The rule of thumb I learned and have used is HP/20 = Imperial Gallons/hr
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Old 16th Sep 2009, 14:50
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Hi Citation,

I didn't learn it from anyone , I figured it out myself looking at a few flight manuals that I'd collected when I was starting to learn to fly and I worked it out in US gallons as a rough check for flight planning to make sure I hadn't screwed up when jumping from different aircraft types.

One type of aircraft this HP/20 rule doesn't work too well on is the older supercharged (rather than turbo) engines , they're about 20% more thristy.

Your imperial gallons would give a better margin for taxi , climb etc.
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Old 16th Sep 2009, 23:51
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I'm a youngster, so for the young'ns out there here's my rule of thumb:

HP/5= L/Hr

eg. For a PA-32-300

300/5 = 60

Works a treat.
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Old 17th Sep 2009, 01:06
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At last, someone has mentioned a suitable aircraft for this guy. A cherokee 6. Or let me guess, your clients, the ones our taxs fund require two engines. I can get hold of an old toyota troop carrier for them.

Last edited by pill; 17th Sep 2009 at 01:52.
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Old 17th Sep 2009, 01:36
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Cherokee 6 is a good aircraft, if he is operating from long runways with heaps of clearway because they dont perform as well as the 200 cessna's in that respect. If he is operating into and out of strips of 1000m, stick to a 206 or even a 210.

If the clients require a twin, you cant beat a 310 or a Baron. If they wanna fill 5 seats to go a long way I just add a diversion for fuel to the cost.
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Old 17th Sep 2009, 04:25
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Look at the charts!

You will find that the 206 and pa32 are similar despite what the sales people tell you.
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Old 17th Sep 2009, 04:34
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You will find that the 206 and pa32 are similar despite what the sales people tell you.
Maybe so, but a high wing aircraft as a utility beats the pants off a low wing especially on bush strips.

I know what I'd rather fly!






A beechcraft
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Old 17th Sep 2009, 04:55
  #58 (permalink)  
 
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You will find that the 206 and pa32 are similar despite what the sales people tell you.
hmmm, ive seen the books. And Ive seen a half loaded cherokee 6 take the same RWY and shallower climb gradient than a MTOW 206. I know what I'd rather fly.
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Old 17th Sep 2009, 09:59
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Me too, A 210
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Old 19th Sep 2009, 01:44
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210's good for 100nm plus flights. But for shorter hops in and out of dirts strips consistently, a 206 carries the load better. Plus in the wet, don't have to worry about mud a stuff getting into the gear wells and messing with switches and gear locks. Unless you like washing your aircraft every day.

There's not much that can go wrong with a 206. And if you look around and get lucky, you might find a quick one. I've seen a couple that stand up well against a 210 (albeit a slowish 210).
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