Maybe we should talk about “1 hour after sunset to 1 hour before sunrise PASSENGER currency.” It would be less confusing.
That's still a lot of syllables.
No, it’s not a second definition. It’s a paraphrase that is probably a bad idea, as it confuses people.
It's a de facto definition, but that's just semantics. The point is that, as you said, it is confusing, and thus an impediment to learning, which was my entire point to begin with.
So “ 3 hours of night flight training in a single-engine airplane that includes—
….
(ii) 10 takeoffs and 10 landings to a full stop (with each landing involving a flight in the traffic pattern) at an airport.” in 61.109 doesn’t actually exist? Or the equivalent wording in 61.129? Or the actual phrase “night takeoffs and landings” in 61.159?
Damn, it's been a long time since I got a new rating, I forgot all about that. So, you can have night landings that are only good for ratings but aren't good for passenger currency. Confusing, impediment to learning, yadda yadda...
I would tend to disagree with that stement, as, apparently, does the FAA.
If the FAA disagreed with that, then they would require your night training to be an hour after sunset.
Also, actually look up the civil twilight times sometime. It's not just "30 minutes after sunset" like a lot of people assume. It gets longer at higher latitudes and during the summer. It is defined by the sun being more than 6º below the horizon, so it's a more accurate representation of a particular brightness than 1 hour after to 1 hour before.
And if it's really not dark enough, why don't we just define night as nautical twilight instead?
FWIW, per timeanddate.com, after civil twilight it's dark enough that "artificial light is generally required for outdoor activities" and "most stars can be easily seen with the naked eye" so I think my assertion that it's dark enough to require night landing skills is good enough. However, the horizon is still visible, so aircraft control is easier than it would be later at night, which makes me think the FAA got it completely backwards.
The intent, seems to me, to ensure that it is completely dark for the takeoffs and landings that are used to show currency.
But it doesn't. For example, on my birthday this year, the sun set at 8:27 PM, but nautical twilight (where there's a visible horizon) didn't end until 9:44 PM.
I just can't come up with a good reason for the 1-hour thing. It's different than other versions of night, it's not guaranteed to be fully dark, it may be fully dark earlier... And it'd make a lot more sense to make the cutoff for all "night" at either civil or nautical twilight.
Funny part is, in the 121 world, we don't need, or even track, night currency. Three takeoffs and landings within 90 days is all we need.
135 gets even weirder. Both 91 and 135 still require night currency in category, class, and type, but in the 135 world sometimes a pilot will fly more than one type of aircraft, so there's an alternate night currency for 135 in multi-crew turbine airplanes. You have to have 1500 hours total time, be day current in type, have 15 hours in type within the last 90 days, and be either night current in any type of multi-crew turbine airplane OR have been through a Part 142 training program within 12 months that included at least 6 night takeoffs and landings in the sim.