Three owners, one airplane, zero arguments
All the scheduling, maintenance, and cost-sharing structure of a club, without the club. One aircraft runs on Centerline's standard per-aircraft rate; see the current number on Pricing.
Just the parts you need
Three organization-level toggles decide how much of Centerline shows up. Billing is off until an owner turns it on: nothing about splitting costs appears in the interface until then. Events ships on, for the fly-in and pancake-breakfast crowd, but it's one switch away from gone if a three-owner partnership has no use for a club social calendar. Flight Logs & Time Tracking ships on too, and that one is worth leaving alone: the tach-based maintenance schedule below reads its number straight from the logs a pilot enters after finishing a flight, so turning tracking off leaves maintenance guessing.
A three-person partnership shouldn't have to look at a club's worth of interface.
- Feature toggles
Clubs turn on only the features they need, and can change their mind later without losing data.
Account Owner only
The shared calendar
Every booking is checked against the calendar on the server, not just in the browser, so two owners can't both walk away believing the airplane is theirs Saturday morning. Book a slot that's already taken and it becomes a backup instead of a conflict; when the plane frees up, that backup promotes itself. Backups matter more with one shared airplane than with a club's worth of them, since there's no second tail to fall back to. This is what ours does, not a claim about anyone else's calendar. A destination and a comment on each reservation means the other owners know the plane went to Mackinac, not just that it's gone.
- Color-coded shared calendar
One glance answers whether the plane is free and who has it.
- Conflict Checks
Two members cannot end up both believing the plane is theirs; the second one is told, in the moment, that they are second in line.
- Backup reservations
Members stop refreshing the calendar hoping for a cancellation.
- Automatic promotion
The waitlist runs itself, and you find out you have the plane while there is still time to plan the flight.
- Finish a flight early
Unused reservation time returns to the club instead of being wasted.
Keeping the airplane honest
A squawk from the ramp arrives with as many photos as it takes to show the problem, and closing it requires writing down what was actually done, which is useful when the person who files it and the person who fixes it are two of the same three owners. Maintenance items get scheduled by a fixed date (the annual, the ELT) or by tach hours (the 100-hour, the oil change), and the tach-based ones run off the aircraft's own current reading rather than a memory of when the last oil change was. Hobbs and tach entries get checked for the usual typos: a zeroed-out end tach, a tach that somehow exceeds hobbs time, or a start below the last flight's end. Each one comes with a suggested fix computed from that aircraft's own flight history. Fleet Status puts all of it, plus any open squawk, on one dashboard card any owner can check before driving to the airport.
- Squawk reporting with photo attachments
'Rough idle' plus a photo of the gauge beats a paragraph in a group chat.
- Due-date schedules
The 24-month items don't live in someone's memory.
- Recurring schedules
Tach-driven maintenance tracked against real tach data from the logs, and 'how close is the 100-hour?' answered at a glance.
- Rule-based suggested fixes
Typos are caught at the source, the system knows what the number should have been, and 12 red warnings turn back into 1 real problem, all of it explainable to an A&P.
Requires the Flight Logs & Time Tracking feature
- Fleet Status card
Preflight the fleet before you drive to the airport.
Splitting costs without spreadsheets
Turn billing on, set the aircraft as wet or dry, and pick an hourly rate. From then on, a finished flight turns itself into a ledger entry from the hobbs or tach difference, with no one transcribing a clipboard into a spreadsheet. Add per-gallon or receipt-based fuel reimbursement for the owner who fuels up off-field. Whoever holds the Account Owner role sees the full ledger, filterable by aircraft, member, and date; the other owners see their own charges, paginated and read-only, on their own profile, so “what do I owe?” doesn't require a text to whoever's doing the books. Settle up by connecting the partnership's own Stripe account and letting owners pay their own balance directly (Centerline never holds the money and takes no cut), or skip Stripe entirely and post Zelle or Venmo instructions instead.
- Wet or dry rates
Match how the club actually operates.
Account Owner only; requires the Billing feature
- Automatic charges from flights
The treasurer stops transcribing a clipboard into a spreadsheet.
Requires the Billing feature; generated when a member finishes a flight, and creatable by hand by Booking or Account Owner
- Fuel reimbursement
Off-field fuel handled correctly instead of by IOU.
Account Owner only; requires the Billing feature
- Debit/credit ledger
A real ledger, not a charges list.
Requires the Billing feature; the club-wide ledger is Account Owner only, but members see their own entries
- Member Charges tab
'What do I owe?' answered without emailing the treasurer.
Requires the Billing feature; every member sees their own charges
- Stripe Connect Standard
Money goes straight to the club. Centerline never holds funds and takes no application fee.
Account Owner only; requires the Billing feature; requires connecting a Stripe account
- Payment instructions
Clubs that don't want Stripe still get a clean member experience.
Requires the Billing feature; written by the Account Owner and shown to every member
Pricing for a partnership
Centerline bills by aircraft, not by owner or by member: the bill counts the partnership's active aircraft, so three, four, or five owners on the same tail pay the same one-aircraft rate. See the current rate and worked examples on the pricing page.
- Per-aircraft pricing
No per-seat math and no tier anxiety. A 40-member club with three planes pays for three planes.
- 60-day free trial, no credit card
Two full months, a real flying season sample, with zero commitment.
Stop scheduling your airplane in a group chat
60 days free, no credit card. Set it up in an evening and never argue about the calendar again.
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