Flight time?

david2000

david2000

Well-Known Member
Logging times with the hobbs always end up... .1=6 mins .2=12 mins. .3=18 mins or .4=24 ....and so on...but what about blocks of 5, 10, 15, 20, minutes, etc, how can that be converted to hobbs time? thanx.
 
david2000 said:
Logging times with the hobbs always end up... .1=6 mins .2=12 mins. .3=18 mins or .4=24 ....and so on...but what about blocks of 5, 10, 15, 20, minutes, etc, how can that be converted to hobbs time? thanx.
Click to expand...

Are you flying without a hobbs meter or tach?
 
1) Thats called tenths, not "hobbs times".
2) I round UP.
3) Edit: There is no reason you can not log time to the minute rather than the tenth. A bunch of my Indian students did this. You'd have to be consistent throughout your logbook though.
 
Not flying with out a hobb, but not logging the time with it, with the airline im flying we start counting the time from chock to chock, pushback to gate arrival, then all that ends up, in blocks of minutes 1.15 hrs. i did a table to round the time to tenths making: 05 mins-.1, 10 mins-.2, 15, 20 mins.-.3, 25 min-.4, etc......but at the end comparing totals with minutes, and tenths always end up with a bit more in tenths....what do you recommend..?
 
Is that 1.15 hours or 1:15 (1 hour + 15 minutes)? 1:15 is obviously 1.25 hours, so 1.3 is close enough. If it's 1.15 hours, then 1.2. I don't see the problem here. I think you might be trying to reinvent the wheel.

I look at my watch when we leave the ramp and when we pull in and shut the 2nd engine down. That's what I log (converted into tenths - one tenth of an hour is 6 minutes-ish).

-mini
 
Same, this is what I do. I have a small pad and I write these blanks on them:


OUT ____ OFF ____ BEG. HOBBS: _____
ON ____ IN _____ END HOBBS: ______

When I start the engine, I write the time out, after I climb I figure out what time I was off at. When I do my after landing check I write the on and when I shutdown I write the in. And then for my logbook I count everything between the out and the in.

If I had just counted the hobbs then I would be shortchanging myself since the hobbes on the van only starts when youre airborne.
 
I usually just round to the .1. I know of a few people that have their logbooks down to the minute but very, very few. I've never been questioned on having everything to .1. Half the time I round up the other half I round down. Is it accurate? I doubt it... but unless you want to get down to the second it won't be accurate anyway. rounding to .1 is generally accepted in aviation, I really would not worry about it.
 
minitour said:
Is that 1.15 hours or 1:15 (1 hour + 15 minutes)? 1:15 is obviously 1.25 hours, so 1.3 is close enough. If it's 1.15 hours, then 1.2. I don't see the problem here. I think you might be trying to reinvent the wheel.

I look at my watch when we leave the ramp and when we pull in and shut the 2nd engine down. That's what I log (converted into tenths - one tenth of an hour is 6 minutes-ish).

-mini
Click to expand...

Yes, you are right, but my actual situation is that i log in minutes, and on other logbook in tenths...it might sound crazy, but im forzed to do so, i fly in mex..then have to log in american, and mex. ways, all i try is to match them...i began only rouding.... .2, .3, and in totals i end up with a bit more 1.5 o more time due to the tenths...and that scars me, when trying to get some thing in the us, comparing both logbooks validating, and verifyng the time..hope you understand..:o
 
aaaaaaah I see now. I can understand, how that gets weird. How about something like

1-8 minutes .1
9-14 mins .2
15-20 mins .3
21-26 mins .4
27-32 mins .5
33-38 mins .6
39-44 mins .7
45-51 mins .8
52-57 mins .9
58-62 mins 1.0
63-68 mins 1.1
...rinse, repeat.

? I think that's how our 'logbooks' (for the plane) are labeled.

-mini
 
Yep..thats the deal...so hopefully to be right.... if not, correct that mistake....with my time..being within the tenth time..limits.;)
 
Here's the conversion table cut and pasted from an Air Force 781. This is how we do it anyway... ​

CONVERSION TABLE​


1 OR 2 MIN - .0 HR
3 THRU 8 MIN - .1 HR.
9 THRU 14 MIN - .2 HR.
15 THRU 20 MIN - .3 HR.
21 THRU 26 MIN - .4 HR.
27 THRU 33 MIN - .5 HR.
34 THRU 39 MIN - .6 HR.
40 THRU 45 MIN - .7 HR.
46 THRU 51 MIN - .8 HR.
52 THRU 57 MIN - .9 HR.
58 THRU 60 MIN - NEXT WHOLE HOUR​


.
 
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