Recording your flight time

The hobbs seems like a perfect, simple
device.

True, except most aircraft (outside of trainers) don't seem to have them.
Mine doesn't, and never did.

That, and you're stuck using the ridiculous (to me) "1.4 hours" nonsense.
Why don't we just use "1:24", like the rest of the civilized world?

When I get this new transponder, I'm going to try using its internal "flight
time" clock. If it's too much of a pain, I'll go back to the tach time x
1.3.
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"

"Jay Honeck" wrote in message
news:vfrFb.617298$Tr4.1604490@attbi_s03...
That, and you're stuck using the ridiculous (to me) "1.4 hours" nonsense.
Why don't we just use "1:24", like the rest of the civilized world?

Time math?

There a good money reason...

Where I usually rent airplaces, they changed billing time to reflect
aircraft ground time so instead of paying for exemple for 45 minutes we
pay for 0.8 hours ...

It's there way to make more money at the end.

:-(


Tom Sixkiller wrote:

"Jay Honeck" wrote in message
news:vfrFb.617298$Tr4.1604490@attbi_s03...

That, and you're stuck using the ridiculous (to me) "1.4 hours" nonsense.
Why don't we just use "1:24", like the rest of the civilized world?


Time math?

"Jay Honeck" wrote in message news:vfrFb.617298$Tr4.1604490@attbi_s03...
The hobbs seems like a perfect, simple
device.

True, except most aircraft (outside of trainers) don't seem to have them.
Mine doesn't, and never did.

My aircraft (Mooney) came from the factory with one. Some argue that
its actually the legal way to count 100 hour ADs (since the tach
doesn't give 1:1).

That, and you're stuck using the ridiculous (to me) "1.4 hours" nonsense.
Why don't we just use "1:24", like the rest of the civilized world?

Gee, I thought that was the best reason for the 1.4 hours math. Its
hard to add up a line of "1:03", "1:23", "1:55". Seems like "1,4" +
"1.6" +"1.6" is easier to add. I guess if you're using a computer it
doesn't make any difference.

When I get this new transponder, I'm going to try using its internal "flight
time" clock. If it's too much of a pain, I'll go back to the tach time x
1.3.

In my plane (constant speed prop) I find that the hobbs and the tach
are almost 1:1. I don't often do pattern work though. On a typical 4
hour flight the tach will be within .1 of the hobbs. I tend to run the
engine around 2400 RPM. I would think 1.3 would be very, very
generous. In the J-3, I just use my watch since I usually ran the
engine way below the 2200 RPM where it turned 1:1.

-Robert

That, and you're stuck using the ridiculous (to me) "1.4 hours" nonsense.
Why don't we just use "1:24", like the rest of the civilized world?

Why doesn't the civilized world give up the 1:24 nonsense, and go with 1.4?

Now if we had an extra finger on each hand, I'd differ. Base 12 is really a
great base - most fractions are nice fractions. Base ten has only one nice
fraction.

Jose

--
(for Email, make the obvious changes in my address)

(Teacherjh) wrote in message ...
That, and you're stuck using the ridiculous (to me) "1.4 hours" nonsense.
Why don't we just use "1:24", like the rest of the civilized world?

Why doesn't the civilized world give up the 1:24 nonsense, and go with 1.4?

Now if we had an extra finger on each hand, I'd differ. Base 12 is really a
great base - most fractions are nice fractions. Base ten has only one nice
fraction.

Especially for guys like me that are more than 8 flights behind in
their log books. Luckily I write receipts for my students so I can
remember those flights. I'm sure there are flights I take by myself
that I never remember when it comes time to sit in front of the T.V
and update the log book.

"Robert M. Gary" wrote in message m...


My aircraft (Mooney) came from the factory with one. Some argue that
its actually the legal way to count 100 hour ADs (since the tach
doesn't give 1:1).

It is a legal way. The FAA says "hours" and absent any specific instruction
from the manufacturer, you can use the recording tach, a elapsed time meter,
or some other reliable record. The FAA just asks that you be consistant.
However, I don't think they'll buy the TACH multiplied by fudge argument.

In article 7oiFb.618964$Fm2.558042@attbi_s04, Jay Honeck
wrote:

And if you *are* using the flight timer, have you stopped using the old
archaic "1.3 hours" method of recording flight time? Anyone using actual
hours and minutes in their logbook instead?

I do.
I log the following:

Hobbs start/Hobbs stop
Tach start/Tach stop
Clock start/Clock stop
Wheels off/Wheels on

I log the following:

Hobbs start/Hobbs stop
Tach start/Tach stop
Clock start/Clock stop
Wheels off/Wheels on

Why do you log four different times? And *where* do you log them?
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"

Jay Honeck wrote:

I log the following:
Hobbs start/Hobbs stop
Tach start/Tach stop
Clock start/Clock stop
Wheels off/Wheels on

Why do you log four different times? And *where* do you log them?

I rent, so the airplanes have different setups.
The Champ has no electrical system, so I have Tach time. Depending on
how "fast" (that's a relative term) or slow I fly, the clock time may be
greater or less than the tach.
On other aircraft with electrical systems, a Hobbs and a Tach, the time
will varyfor several reasons.
For example, the Hobbs on the Cherokee Six is tied to the oil pressure
switch. Until the Tachometer gets above 1600 RPM, the Hobbs doesn't
move.
By recording Clock start/Clock stop, I have a true reference to Hobbs
and Tach.
By recording Wheels off/Wheels on, I have an accurate measure of actual
flight time.
What goes in the logbook is the greater of the three.
I have made my own logging cards (5x8 blank index). I have also included
blocks for logging fuel used from each tank to maintain fuel load
balance and compare to the totalizer. The Cherokee Six and Bonanza have
four tanks, do I included blocks for each.
The logging card has space for five legs on each side. I have a
four-hold punch for flip plates. I include logging cards with each
aircraft checklist.

The following block titles are used:
DATE
AIRCRAFT N-NUMBER
DEPARTURE AIRPORT
DESTINATION AIRPORT
TACH START
TACH STOP
TACH FLIGHT
HOBBS START
HOBBS STOP
HOBBS FLIGHT
CLOCK START
CLOCK STOP
CLOCK FLIGHT
WHEELS OFF
WHEELS OFF
BLOCK TIME
RIGHT TIP
RIGHT MAIN
LEFT MAIN LEFT TIP