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.
With 100.0 tach hours left at the pace it usually flies through the seasons, it's projected for January 2027, at about $84,000 (your setting).
Ideas schools in this spot often explore
Overhaul quotes and shop slots, since lead times can be long.
How the overhaul will be paid for (reserve, financing or cash) and when the money is needed.
Overhaul, exchange or a factory engine: what each costs, and how long the aircraft would be down.
Ideas, not recommendations. Your situation may differ.
Show the numbers
N744PS's engine is projected to reach its 2,000-hour TBO about January 2027 (100.0 tach hours remaining at about 28.7 a month, through the seasons).
Hours remaining to TBO: 100.0 h
Tach hours per month: 28.7 h/month
Projected overhaul: January 2027
Overhaul cost: $84,000
Hours remaining to TBO: 100.0 h
Tach hours per month: 28.7 h/month
Projected overhaul: January 2027
Overhaul cost: $84,000
Facts from your data, not a diagnosis.
N744PS: 100.0 tach hours remaining to TBO (2,000 less 1,900.0 since overhaul), at about 28.7 tach hours a month, month by month as it flew from 2025-09-01 to 2026-08-31: about January 2027. main factor
Hours remaining to TBO: 100.0 h
Tach hours per month: 28.7 h/month
The cash flow forecast has months where more goes out than comes in, January 2027 most of all.
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
Since its rate last changed, its cost per hour has gone from about $255 to $290, about $14,138 over the hours flown since.
Ideas schools in this spot often explore
Whether fuel prices or fuel burn per hour account for the rise.
When the lease terms changed, and whether the rate was reviewed then.
When the hourly rate was last reviewed against its cost per hour.
Ideas, not recommendations. Your situation may differ.
Show the numbers
N744PS's hourly rate last changed in September 2025 (from $375.00 to $395.00 on its invoices). Its operating cost per hour has gone from $254.62 (the 12 months before September 2025) to $289.93 (the 12 months to Aug 31, 2026), up 14%; over the 400.4 hours flown since, that's about $14,138.
Hourly rate: $395.00/hr
Rate last changed: September 2025
Cost per hour before: $254.62/hr
Cost per hour, 12 months to now: $289.93/hr
Hours flown since: 400.4 h
Hourly rate: $395.00/hr
Rate last changed: September 2025
Cost per hour before: $254.62/hr
Cost per hour, 12 months to now: $289.93/hr
Hours flown since: 400.4 h
Facts from your data, not a diagnosis.
Fuel went from $87.90 to $107.95 per hour flown. main factor
Fuel per hour, before: $87.90/hr
Fuel per hour, now: $107.95/hr
Lease payments went from $83.12 to $95.90 per hour flown. smaller factor
Lease payments per hour, before: $83.12/hr
Lease payments per hour, now: $95.90/hr
Insurance went from $25.24 to $28.47 per hour flown. smaller factor
It flew about 57% of the time booked, leaving time worth about $12,798 that no one else could book.
Ideas schools in this spot often explore
Whether the booking length for these lessons includes briefing time that could be booked separately, so the aircraft is free sooner.
How long bookings are blocked for: whether the default block fits the lesson, or leaves time nobody uses.
Whether bookings start on time, and what happens to the time when a lesson ends early.
Ideas, not recommendations. Your situation may differ.
Show the numbers
N744PS flew 42.6 of its 75.0 booked hours (57%) in this period; the fleet flew 70% of its booked time. The 32.4 booked hours not flown are worth about $12,798 at its revenue per hour.
N744PS booked hours: 75.0 h
N744PS hours flown: 42.6 h
N744PS share flown: 57%
Fleet share flown: 70%
N744PS booked hours: 75.0 h
N744PS hours flown: 42.6 h
N744PS share flown: 57%
Fleet share flown: 70%
Facts from your data, not a diagnosis.
Bookings averaged 3.0 booked hours for 1.7 hours flown. main factor
Booked hours per booking: 3.0 h
Hours flown per booking: 1.7 h
Cancellations are costing N744PS real flying time.
N744PS$2,370 est Scheduled value of cancelled hours
11% of bookings were cancelled or no-shows, 6.0 scheduled hours worth about $2,370 at the usual rate.
Ideas schools in this spot often explore
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.
A standby list that fills cancelled slots at short notice.
Ideas, not recommendations. Your situation may differ.
Show the numbers
N744PS had 3 cancelled or no-show bookings (11% of its 28 bookings) covering 6.0 scheduled hours; its revenue per hour was $395.00.
Cancelled or no-show bookings: 3
Cancellation rate: 11%
Scheduled hours: 6.0 h
Revenue per hour: $395.00/hr
Cancelled or no-show bookings: 3
Cancellation rate: 11%
Scheduled hours: 6.0 h
Revenue per hour: $395.00/hr
Facts from your data, not a diagnosis.
3 of the 3 cancelled or no-show bookings that name a customer were booked again by the same customer within 7 days. smaller factor
N744PS flew 18% 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
N744PS's 100-hour (about Sep 19, 2026) falls within 14 days of N8123V's 100-hour (about Sep 19, 2026) and N4521K's 100-hour (about Sep 24, 2026) (projected). N744PS flew 18% of the fleet's hours from 2026-06-03 to 2026-08-31.
N744PS 100-hour: about Sep 19, 2026
Also due: N8123V 100-hour: about Sep 19, 2026
Also due: N4521K 100-hour: about Sep 24, 2026
N744PS share of fleet hours: 18%
N744PS 100-hour: about Sep 19, 2026
Also due: N8123V 100-hour: about Sep 19, 2026
Also due: N4521K 100-hour: about Sep 24, 2026
N744PS share of fleet hours: 18%
Facts from your data, not a diagnosis.
N744PS: 100-hour (about Sep 19, 2026); it flies about 28.7 tach hours a month, and flew 18% of the fleet's hours from 2026-06-03 to 2026-08-31. main factor
N744PS hours per month: 28.7 h/month
N744PS share of fleet hours: 18%
Also due within 14 days: N8123V's 100-hour (about Sep 19, 2026) and N4521K's 100-hour (about Sep 24, 2026). smaller factor
Other aircraft due in the same weeks: 2
Not in your data: gallons on fuel bills. The cards leave out what depends on them.
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.
Utilization by month
Mar–Aug, by calendar month. Based on your weekly schedule.
Flights, newest first
Date
Kind
Hobbs start
Hobbs end
Tach start
Tach end
Source
2026-08-31
dual
3364.9
3366.2
2892.9
2894.0
gsheets
2026-08-30
dual
3362.9
3364.9
2891.2
2892.9
gsheets
2026-08-29
dual
3361.0
3362.9
2889.6
2891.2
gsheets
2026-08-27
dual
3359.1
3361.0
2888.0
2889.6
gsheets
2026-08-26
dual
3357.4
3359.1
2886.5
2888.0
gsheets
2026-08-24
dual
3355.5
3357.4
2884.9
2886.5
gsheets
2026-08-23
no show
—
—
—
—
gsheets
2026-08-22
dual
3353.5
3355.5
2883.2
2884.9
gsheets
2026-08-21
dual
3352.0
3353.5
2881.9
2883.2
gsheets
2026-08-20
dual
3350.6
3352.0
2880.7
2881.9
gsheets
2026-08-19
dual
3348.8
3350.6
2879.2
2880.7
gsheets
2026-08-18
dual
3347.1
3348.8
2877.7
2879.2
gsheets
2026-08-17
dual
3345.8
3347.1
2876.6
2877.7
gsheets
2026-08-16
dual
3343.8
3345.8
2874.9
2876.6
gsheets
2026-08-15
dual
3342.4
3343.8
2873.7
2874.9
gsheets
2026-08-13
dual
3340.8
3342.4
2872.3
2873.7
gsheets
2026-08-12
dual
3338.9
3340.8
2870.7
2872.3
gsheets
2026-08-11
dual
3337.5
3338.9
2869.5
2870.7
gsheets
2026-08-10
cancelled
—
—
—
—
gsheets
2026-08-09
dual
3335.4
3337.5
2867.7
2869.5
gsheets
2026-08-08
dual
3333.7
3335.4
2866.2
2867.7
gsheets
2026-08-07
dual
3332.0
3333.7
2864.7
2866.2
gsheets
2026-08-06
cancelled
—
—
—
—
gsheets
2026-08-05
dual
3330.3
3332.0
2863.2
2864.7
gsheets
2026-08-04
dual
3328.7
3330.3
2861.8
2863.2
gsheets
Maintenance
Maintenance/hr (12-month)
$38/hr
Hourly (100-hour inspections, oil, other flying wear)
$23/hr
Calendar (annual and other date-driven items)
$511/month
Unscheduled repairs in this range
$0
Engine reserve per hour (overhaul cost ÷ TBO)
$42/hr
Maintenance booked in this range
$205
Per-hour and per-month figures cover 2025-09-01 to 2026-08-31 (400.4 Hobbs hours), so one month's annual or a month with few hours doesn't swing them. The operating break-even uses them too. Operating cost and margin stay as booked.
Largest in this range
Date
Category
Amount
Memo
2026-08-02
Hourly
$205
Oil change N744PS
Coming up
Next 100-hour
About Sep 19, 2026 (at tach 2,917.3)
77% of the way
est
Next annual
Due by Nov 30, 2026
76% of the way
Overhaul
About January 2027
95% of the way
est
Reserve per hour
$42.00 needed
Dates marked est are estimates: the 100-hour from this aircraft's upcoming bookings and its last 90 days of hours (hover it for how), the overhaul projected at about 28.7 tach hours a month, month by month as it flew from 2025-09-01 to 2026-08-31.
Maintenance downtime
No maintenance recorded in this range.
Downtime counted against utilization in this range: 0.0 h (times in America/Chicago).
Summary
Hours flown
Utilization
Based on your weekly schedule.
Revenue
Operating cost
Operating margin
Loan payments
After loan payments
Cash view: includes loan principal
Cost/hr
Cost/hr (12-month)
42.6
13.7%
$16,827
−$10,362est
$6,465est
$0
$6,465est
$243est
$290est
Operating cost by category
Fuel
−$5,357est
52%
Maintenance
−$205
2%
Insurance
−$950
9%
Hangar
−$650
6%
Lease payment
−$3,200
31%
Instructor pay
$0
0%
Other
$0
0%
Operating cost
−$10,362est
100%
Loan payments (after the operating margin, not in cost)
$0
est Includes estimated values: inferred bills, placeholder fixed costs or allocated fuel.
Bars are drawn against the largest category; striped bars include estimates. The percent is each category's share of the operating cost.
Fuel includes $317 allocated to this aircraft from fuel with no tail number, split by Hobbs hours each month (an estimate).
By month
Month
Hours flown
Utilization
Based on your weekly schedule.
Revenue
Operating cost
Operating margin
After loan payments
Cash view: includes loan principal
August 2026
42.6
13.7%
$16,827
−$10,362est
$6,465est
$6,465est
Range total
42.6
13.7%
$16,827
−$10,362est
$6,465est
$6,465est
Cost per hour, month by month
Month
Hours
Fuel
Maintenance
Sep 2025
38.5
$72/hr
$5/hr
Oct 2025
27.5
$82/hr
$0/hr
Nov 2025
22.3
$82/hr
$374/hr
Dec 2025
22.4
$143/hr
$0/hr
Jan 2026
23.7
$131/hr
$9/hr
Feb 2026
20
$123/hr
$0/hr
Mar 2026
31.2
$69/hr
$0/hr
Apr 2026
39.3
$122/hr
$89/hr
May 2026
40.3
$109/hr
$5/hr
Jun 2026
45.6
$118/hr
$57/hr
Jul 2026
47
$118/hr
$0/hr
Aug 2026
42.6
$126/hr
$5/hr
Calendar maintenance (annual inspections and other dated items): 2024 (part) $6,085 · 2025 $6,136 · 2026 (part) $0
Maintenance per hour is lumpy month to month (an annual lands in one month); the 12-month rate above smooths it.
Break-even and cancellations
Break-even: 21.2 hours a month to cover $5,224 of fixed costs; it flew 41.8 a month. est
Cancelled or no-show: 11% of 28 bookings (2 cancelled, 1 no-shows).