Sky DutyWhat a pilot logbook is and why it matters
A pilot logbook is the record of the flying and training you have done. On its face it is a list of flights — date, aircraft, route, hours — but its real job is to be proof. When you sit for a checkride, apply for an insurance quote, add a rating, or show that you are current to carry passengers, your logbook is the document that backs the claim. It is also, quietly, your own memory of a career: first solo, first night cross-country, the type you checked out in three years ago.
Because the logbook is evidence, accuracy matters more than volume. A clean, consistent record that totals correctly and can be produced on request is worth more than a thick book full of gaps. That is the lens for the rest of this guide: what the rules ask you to capture, and how to keep the record in a form you can trust and hand over without a scramble.
What FAR 61.51 actually requires you to log
One of the most common misreadings in aviation is that you must log every flight. Under 14 CFR 61.51, that is not what the rule says. The regulation requires you to document the training and aeronautical experience used to meet the requirements for a certificate, rating, or flight review, and the experience needed to meet the recent flight experience — currency — requirements of Part 61. In plain terms: you must log what you need to prove something. A certificated private pilot flying purely for personal enjoyment is not legally obligated to record every hour, though most pilots log everything anyway because it is simpler and because insurance and future ratings reward a complete history.
When you do log a flight, 61.51 specifies what the entry has to contain. Each entry includes the date; the total flight time or lesson time; the departure and arrival points (or the location for a simulator or training-device lesson); the type and identification of the aircraft, simulator, or training device; the type of pilot experience or training — solo, pilot in command, second in command, instruction received, and so on; and the conditions of flight, such as day, night, actual instrument, or simulated instrument. Get those fields right and the entry does its job.
It is worth separating two regulations that people often blur together. FAR 61.51 governs the logbook itself — what to record and what each entry must contain. The specific recency thresholds, like how many takeoffs and landings you need to carry passengers, live in FAR 61.57. Treat this section as an overview: the regulations are revised over time, so read the current rule text or ask a flight instructor before you rely on any specific number.
Paper versus digital (electronic) logbooks
A paper logbook is honest and simple. It needs no battery, never syncs to the wrong account, and has worked for a century. The costs are the obvious ones: it can be lost, left in a flight bag, soaked, or burned, and every column total is added by hand — which means every column total can be added wrong. Rebuilding a lost paper logbook is a genuinely painful exercise.
A digital or electronic logbook trades that simplicity for automation and durability. Totals are computed for you, currency is calculated from your entries, the record is backed up off the device it lives on, and you can export it when someone needs a copy. The FAA addresses electronic recordkeeping and signatures in Advisory Circular 120-78A, and electronic logbooks are widely used across general and commercial aviation. What the FAA cares about is the same for either format: the record must be complete and accurate, and under FAR 61.51(i) you must be able to present it on reasonable request. Keep a backup no matter which format you choose. None of this is legal advice — it is the practical shape of the trade-off.
In practice, many pilots run a digital logbook as their working record and keep older paper books for history. That way new flights are captured cleanly going forward, and nothing from the past is thrown away.
How currency and recency work
Currency is recent flight experience — proof that you have flown recently enough to do a given thing safely and legally. The most familiar rule, under FAR 61.57, is that to carry passengers you need three takeoffs and landings within the preceding 90 days in an aircraft of the same category and class (and type, if a type rating is required). At night, and in a tailwheel airplane, those landings must be to a full stop. Instrument currency, also under 61.57, generally requires six instrument approaches plus holding procedures and course intercepting and tracking within the preceding six calendar months.
Separate from currency is the flight review: under FAR 61.56, you generally need one every 24 calendar months to act as pilot in command. The common thread is that your logbook is how you demonstrate all of it. If the entries are complete and correctly categorized, showing currency is a matter of reading the record; if they are patchy, it becomes guesswork. Again, verify the current rule text before relying on any specific threshold — the numbers above are an overview, not a substitute for the regulation.
What to look for in a digital logbook
If you are choosing a digital logbook, a few things separate a tool you will trust from one you will abandon. Look for entries that match how you actually fly — custom fields you can add and hide, rather than a rigid form. Look for currency tracking computed from your logged landings and approaches, so the app answers "am I current?" without you doing the arithmetic. Look for export to PDF and CSV, because a logbook you cannot get out of an app is a liability, not an asset. And look for offline capability, since the moment you most want to log a flight is right after you land, which is often exactly where there is no signal.
It is also worth weighing whether you need a personal career logbook or a shared, department-level record. A solo professional pilot tracking a lifetime of hours has different needs than a flight department that wants every trip its crews fly to land in one place. The comparison pages for LogTen Pro and MyFlightbook walk through where each of those tools fits, so you can match the logbook to the job.
How Sky Duty approaches the logbook
Sky Duty comes at the logbook from the operations side. It is built for flight departments, so the logbook is one part of a wider app alongside scheduling, maintenance, and expenses — a shared, department-level record rather than a single pilot's personal book. The practical payoff is that entries auto-fill from the trips you schedule and fly: when a scheduled flight closes out, the logbook entry fills in from the trip — Hobbs, tach, PIC, SIC, and approaches — so the same flight is not typed into two places. From those entries, Sky Duty tracks currency and lets you export the whole logbook to PDF and CSV for a checkride, an insurance review, or your own files.
Two honest caveats keep expectations straight. Sky Duty does not import an existing logbook from another app — it auto-fills going forward from your trips, so export your prior history from your old tool for your records and let Sky Duty build the record from here. And Sky Duty is a scheduling, logbook, maintenance, and expense app; it tracks duty periods and flight time, but it does not compute Part 117 or flight-duty-period legality and is not an EFB. It keeps the record clean; interpreting that record against the regulations stays with you. If you want to keep quick flight-planning math close by while you set up, the free aviation tools live one click away.
