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Demo school. A sample flight school with four aircraft and two years of invented flights and bills (September 2024–August 2026). Sign in to see your own school's numbers.

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N4521KCessna 172S SkyhawkActive

Cessna 172S SkyhawkOwned

Rank 1 of 4 by operating margin · August 2026 · latest month with data

Aug 1, 2026 – Aug 31, 2026

August 2026

to
Revenue
$21,331
−7%vs. previous period
Hours flown
115.3
−7%vs. previous period
Revenue/hr
$185
0%vs. previous period
Utilization
38.3%
−4 ptsvs. previous period

Monthly performance

Mar–Aug, by calendar month.

Upcoming inspections

Maintenance
Due dateItemHours / intervalStatus
Sep 24, 2026estNext 100-hour76.7 hours to go
23% of the way
In 24 days
Dec 31, 2026Next annual12 calendar months
69% of the way
In 122 days
July 2027estOverhaul790.0 hours to the 2,000-hour TBO
61% of the way
In 333 days

Aircraft information

Make / model
Cessna 172S Skyhawk
Ownership
Owned
Engine TBO
2,000 hrs
Engine hours since overhaul (SMOH)
1,210 hrs (entered Aug 31, 2026)
Current tach
6351.2
Overhaul cost
$42,000
Hourly rate
$185/hr
Fuel burn
Not set

What the numbers show

The cash flow forecast has months where more goes out than comes in, January 2027 most of all.

N4521K, N744PS, N8123V−$82,230 short est in January 2027

In the forecast, revenue there is expected at about 61% of an average month, and N744PS's engine overhaul ($84,000) falls in it, leaving about $82,230 more going out than coming in.

Ideas schools in this spot often explore

  • When the large cost has to be paid: a deposit, payment terms, or financing that spreads it over several months.
  • What brings in revenue in the slow months: ground school, simulator time, or block-time packages sold ahead of winter.
  • Timing maintenance that isn't due yet into the stronger months before or after it.

Ideas, not recommendations. Your situation may differ.

Show the numbers

The cash flow forecast for September 2026 to February 2027 has 2 months with more going out than coming in. The most negative is January 2027: about $29,981 of expected revenue against $112,211 of costs, $89,002 of them known upcoming costs (N4521K's 100-hour inspection, N744PS's engine overhaul and N8123V's annual inspection). The running total over the 6 months ends at -$44,974 (an estimate, not a bank balance).

November 2026 forecast net: -$675
January 2027 forecast net: -$82,230
January 2027 expected revenue: $29,981
January 2027 expected costs: $112,211
January 2027 known upcoming costs: $89,002
Running total after 6 months: -$44,974
November 2026 forecast net: -$675
January 2027 forecast net: -$82,230
January 2027 expected revenue: $29,981
January 2027 expected costs: $112,211
January 2027 known upcoming costs: $89,002
Running total after 6 months: -$44,974

Facts from your data, not a diagnosis.

  • N744PS's engine overhaul ($84,000, from your overhaul cost setting) is projected for January 2027. main factor
    N744PS's engine overhaul: $84,000
  • January 2027's expected revenue is $29,981, 61% of an average month by the pattern in your past months. smaller factor
    January 2027 seasonal index: 61%
    January 2027 expected revenue: $29,981

Cancellations are costing N4521K real flying time.

N4521K$2,960 est Scheduled value of cancelled hours

9% of bookings were cancelled or no-shows, 16.0 scheduled hours worth about $2,960 at the usual rate.

Ideas schools in this spot often explore

  • Whether the day most cancellations fall on has something in common: weather patterns, instructor rosters, or a recurring group of students.
  • How the cancellation and no-show policy is set: notice period, fees, and whether it's applied consistently.
  • Reminders before each booking, and how easy it is for a student to move a booking instead of dropping it.

Ideas, not recommendations. Your situation may differ.

Show the numbers

N4521K had 8 cancelled or no-show bookings (9% of its 92 bookings) covering 16.0 scheduled hours; its revenue per hour was $185.00.

Cancelled or no-show bookings: 8
Cancellation rate: 9%
Scheduled hours: 16.0 h
Revenue per hour: $185.00/hr
Cancelled or no-show bookings: 8
Cancellation rate: 9%
Scheduled hours: 16.0 h
Revenue per hour: $185.00/hr

Facts from your data, not a diagnosis.

  • 3 of the 8 cancelled or no-show bookings fell on a Saturday. smaller factor
    On Saturdays: 3
    Cancelled or no-show bookings: 8
  • 7 of the 8 cancelled or no-show bookings that name a customer were booked again by the same customer within 7 days. smaller factor
    Booked again: 7
    Naming a customer: 8
    Rebooked share: 88%

N4521K's next inspection falls in the same two weeks as other aircraft's.

N4521K

N4521K flew 48% of the fleet's hours, and the others are due within days of it, so they could all be down at once.

Ideas schools in this spot often explore

  • Bringing one inspection forward a few days so the aircraft aren't down at the same time.
  • Whether the shop can take two aircraft in the same week, and how long each would take.
  • Which bookings fall in those weeks and could move to other aircraft.

Ideas, not recommendations. Your situation may differ.

Show the numbers

N4521K's 100-hour (about Sep 24, 2026) falls within 14 days of N744PS's 100-hour (about Sep 19, 2026) and N8123V's 100-hour (about Sep 19, 2026) (projected). N4521K flew 48% of the fleet's hours from 2026-06-03 to 2026-08-31.

N4521K 100-hour: about Sep 24, 2026
Also due: N744PS 100-hour: about Sep 19, 2026
Also due: N8123V 100-hour: about Sep 19, 2026
N4521K share of fleet hours: 48%
N4521K 100-hour: about Sep 24, 2026
Also due: N744PS 100-hour: about Sep 19, 2026
Also due: N8123V 100-hour: about Sep 19, 2026
N4521K share of fleet hours: 48%

Facts from your data, not a diagnosis.

  • N4521K: 100-hour (about Sep 24, 2026); it flies about 74.1 tach hours a month, and flew 48% of the fleet's hours from 2026-06-03 to 2026-08-31. main factor
    N4521K hours per month: 74.1 h/month
    N4521K share of fleet hours: 48%
  • Also due within 14 days: N744PS's 100-hour (about Sep 19, 2026) and N8123V's 100-hour (about Sep 19, 2026). smaller factor
    Other aircraft due in the same weeks: 2
est Includes estimated values: inferred bills, placeholder fixed costs or allocated fuel. Figures for cancellations, downtime and unbilled ground sessions are estimates by design.

Informational only, based on your data. Not financial, legal, or aviation-maintenance advice.