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Old October 23rd, 2006, 00:22   #1
WAFlyBoy
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Default Logging time... Hobbs only runs in flight

On one of the airplanes I fly, the Hobbs meter is connected to the aircraft's squat switch, so it only counts true flight time. I have only been logging the Hobbs time, because I figured that was the most honest and conservative thing to do.

However, I remember reading some threads that discuss the issue of logging time in the airplane on the ground.... this being rationalized by the fact that even time spent on the ground accounts for "experience" with the aircraft. So, the question: would it be prudent to start accounting for time spent in the aircraft on the ground?

It kind of sounds like "sweeping the corners," but when you consider the many take-offs and landings done every week, the "lost" time can be significant.

Thanks for any feedback.
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Old October 23rd, 2006, 00:28   #2
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Default Re: Logging time... Hobbs only runs in flight

I'd go for "block time" - when you first move the aircraft until you stop it. Just mark your in and out times and you've got a pretty reliable method of logging time.

But I'm sure someone will come in soon saying just the opposite
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Old October 23rd, 2006, 01:27   #3
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Default Re: Logging time... Hobbs only runs in flight

Only new age sissy pilots log ground time when the prop is turning.

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Old October 23rd, 2006, 01:40   #4
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Default Re: Logging time... Hobbs only runs in flight

Your even suggesting this makes me question your morals. Disgusting. Do you really want to have to explain the logging of taxi time at a future interview? What if the FAA finds out? Just not worth it.
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Old October 23rd, 2006, 01:42   #5
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Default Re: Logging time... Hobbs only runs in flight

Ya either forgot the sarcasm tag, or need to lighten up francis.
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Old October 23rd, 2006, 01:46   #6
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Default Re: Logging time... Hobbs only runs in flight

Oh, and by the way WAFlyboy, check section 1.1 of the FAR's under "Flight time" - you'll find the answer there.
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Old October 23rd, 2006, 02:01   #7
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Default Re: Logging time... Hobbs only runs in flight

The FAR's say you can log as flight time the time from when the aircraft first moves for the intention of flight. That's how the airlines do it. That's how you should feel free to log it. Anyone who isn't getting that needs to open the book and read a little...

Most hobbs meters are on an oil pressure switch. In theory, you are cheating just a tad if you log time using a hobbs as you don't start moving right after the engine starts. I wouldn't worry about it, though.
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Old October 23rd, 2006, 02:03   #8
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Default Re: Logging time... Hobbs only runs in flight

14 CFR 1.1

Flight time means:
(1) Pilot time that commences when an aircraft moves under its own power for the purpose of flight and ends when the aircraft comes to rest after landing;


Sorry, I couldn't resist posting it.
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Old October 23rd, 2006, 02:15   #9
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Default Re: Logging time... Hobbs only runs in flight

Chuck Norris only starts logging time after he moves the earth away from the wheels of his plane and then he stops logging when he pulls the earth back to his plane.
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Old October 23rd, 2006, 02:25   #10
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Default Re: Logging time... Hobbs only runs in flight

I heard that Chuck Norris doesn't log time, time itself jumps onto the pages in his logbook out of fear.
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Old October 23rd, 2006, 02:41   #11
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Default Re: Logging time... Hobbs only runs in flight

The JAA (if you are looking to convert a FAA license to a JAA license) will automatically deduct 25% of your time from your log book because they only count the time from rotation to landing. I guess somewhere someone calculated that we spend 25% of our logged time taxing around the airfield.

I've rented planes here in Germany and the Hobbs is hooked up to RAM air and does not start counting until you exceed 30 kts. Makes it easier to log time under the JAA rules and saves you money because you don't have to pay until you are practically airborne.
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Old October 23rd, 2006, 02:43   #12
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Default Re: Logging time... Hobbs only runs in flight

Quote:
Originally Posted by Timbuff10 View Post
Chuck Norris only starts logging time after he moves the earth away from the wheels of his plane and then he stops logging when he pulls the earth back to his plane.

I think you forgot your sarcasm tag Timbuff...
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Old October 23rd, 2006, 02:46   #13
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Default Re: Logging time... Hobbs only runs in flight

NO! It's true! I saw it on CNN.... haha
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Old October 23rd, 2006, 02:46   #14
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Default Re: Logging time... Hobbs only runs in flight

You just don't kid about Norris.
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Old October 23rd, 2006, 02:47   #15
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Default Re: Logging time... Hobbs only runs in flight

I log the time that i have to pay on the bill ( which is hobb )
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Old October 23rd, 2006, 10:28   #16
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Default Re: Logging time... Hobbs only runs in flight

Quote:
Originally Posted by WAFlyBoy View Post
the Hobbs meter is connected to the aircraft's squat switch, so it only counts true flight time. I have only been logging the Hobbs time, because I figured that was the most honest and conservative thing to do.

Check the definition of "Flight Time" in Part 1:
------------<snip>-----------------------

Flight time means:

(1) Pilot time that commences when an aircraft moves under its own power for the purpose of flight and ends when the aircraft comes to rest after landing; or

(2) For a glider without self-launch capability, pilot time that commences when the glider is towed for the purpose of flight and ends when the glider comes to rest after landing.

------------<snip>-----------------------


So, yes, that includes taxi time.


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Old October 23rd, 2006, 10:50   #17
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Default Re: Logging time... Hobbs only runs in flight

I think I remember reading somewhere that some airlines allow military applicants to add .2 to their flights since (I believe) they only log flight time as well. Now, if you're getting launched off a carrier, .2 seems a bit much to me.
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Old October 23rd, 2006, 11:18   #18
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Default Re: Logging time... Hobbs only runs in flight

Quote:
Originally Posted by kellwolf View Post
I think I remember reading somewhere that some airlines allow military applicants to add .2 to their flights since (I believe) they only log flight time as well. Now, if you're getting launched off a carrier, .2 seems a bit much to me.
Some allow .2 to each sortie, some allow .3. It is a result of the fact that in the military you only get flight hours logged as takeoff to touchdown plus a whole 5 minutes for taxi. I can count on one hand the number of times I had a total taxi time of less than 5 minutes so the "conversion" makes sense to try to civilianize the flight times.
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Old October 23rd, 2006, 11:22   #19
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Default Re: Logging time... Hobbs only runs in flight

Quote:
Originally Posted by Persian_Pilot View Post
I log the time that i have to pay on the bill ( which is hobb )
Agreed, if I am paying for it, I am logging it. Again, its the Hobbs.
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Old October 23rd, 2006, 11:36   #20
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Default Re: Logging time... Hobbs only runs in flight

haha... some informative and some entertaining responses.

Ok, so all I needed to do was look it up in my handy FAR/AIM. But wasn't this so much more fun?
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Old October 23rd, 2006, 11:44   #21
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Default Re: Logging time... Hobbs only runs in flight

Quote:
Originally Posted by WAFlyBoy View Post
haha... some informative and some entertaining responses.

Ok, so all I needed to do was look it up in my handy FAR/AIM. But wasn't this so much more fun?
Dude, after the amount of kitchen conversations where one or the other of us wound up whipping out the FAR/AIM to prove a point, I'm surprised that wasn't your first stop!
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Old October 23rd, 2006, 11:49   #22
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Default Re: Logging time... Hobbs only runs in flight

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Originally Posted by towhook View Post
Your even suggesting this makes me question your morals. Disgusting. Do you really want to have to explain the logging of taxi time at a future interview? What if the FAA finds out? Just not worth it.

Ive flown with FAA before that have logged it that way, nothin at all wrong with it.
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Old October 23rd, 2006, 11:56   #23
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Default Re: Logging time... Hobbs only runs in flight

Quote:
Originally Posted by kellwolf View Post
Dude, after the amount of kitchen conversations where one or the other of us wound up whipping out the FAR/AIM to prove a point, I'm surprised that wasn't your first stop!
Yeah, I miss those good ol' days. A time when life was simpler. A time when you could get a movie ticket and stein of Shiner for six bucks at the Movie Tavern.
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Old October 23rd, 2006, 17:26   #24
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Default Re: Logging time... Hobbs only runs in flight

so let the plane lunge forward an inch when you fire her up.

BRILLIANT!
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Old October 23rd, 2006, 23:20   #25
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Default Re: Logging time... Hobbs only runs in flight

Waffleboy you never got The Tower at the Movie Tavern. I am disapointed!
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