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Excel-native workflow
Flyer1 reads existing models and writes outputs directly into their spreadsheet structure, preserving formatting, formulas, and conventions.
No new platform · No data re-entry
AI analyst · Aviation finance
Aviation modeling for the AI age
Flyer1 is an AI-powered investment and pricing analyst for aircraft lessors and aviation financiers—built to live inside the tools they already use.
MSN_7821_valuation.xlsx
Flyer1 analysis active| Adjustment | Status | Value |
|---|---|---|
| Base market value | Current | $42.80m |
| Engine LLP | 62% life | ($1.14m) |
| Airframe checks | 18 mo. | $0.46m |
| Landing gear | 44% life | ($0.31m) |
| Half-life value | Calculated | $41.81m |
=FLYER1.HALFLIFE(BMV, ENGINE_STATUS, AIRFRAME_STATUS)
The operating problem
High-stakes analysis is still built by hand.
Aircraft valuation and lease pricing have historically depended on appraiser judgment and static spreadsheet models.
Lessors, banks, and aviation investors spend enormous amounts of time building maintenance reserve schedules, half-life valuation adjustments, and engine restoration cost forecasts—specialized work where small errors can materially change a decision.
Flyer1 applies established aviation-finance methodology at software speed, then writes the analysis directly into Excel. Spreadsheets are fully auditable - no black boxes, no new platforms, no manual data entry.
Core capabilities
Domain depth, connected to the model.
Purpose-built for the technical and commercial mechanics that drive aircraft and engine value.
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Maintenance reserve & half-life valuation
Apply ISTAT value definitions, half-life maintenance status adjustments, and reserve-rate calculations across engines, landing gear, APU, and major checks.
Maintenance status quantified in dollar terms
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Engine health & reliability modeling
Model EGT margin erosion, shop-visit rates, flight-leg severity, thrust derate, and operating environment rather than relying on flat averages.
Legacy and new-generation engine dynamics
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Document-aware analysis
Use technical handbooks, appraisal references, and lease agreements as grounding context to extract use fees, maintenance status, and redelivery terms.
Commercial and technical terms connected
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Built for real transactions
Work through mirror-in/mirror-out adjustments, end-of-lease settlements, and redelivery clearance requirements with outputs made for live negotiations.
Decision-ready, not merely illustrative
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Sensitivity & stress-test scenarios
Run dozens of scenarios across lease rates, residual values, maintenance costs, and macro assumptions simultaneously—surfacing range-bound outcomes in minutes rather than hours.
Dozens of scenarios · Instant recalculation
How it works
From source material to a defensible Excel output.
Your model remains the working document. Flyer1 handles the reading, calculations, and traceable write-back.
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Upload the source set
Add technical records, appraisal references, completed leases, and the workbook you already use.
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Flyer1 analyzes
The analyst extracts key terms, applies valuation and reserve methodology, and reconciles the relevant inputs.
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Results return to Excel
Outputs, formulas, and source references are written into your existing model for review and decision-making.
Built for the deal team
A personal analyst for the aviation ecosystem
Aircraft lessors & leasing companies
Aviation-focused banks & financiers
Aircraft appraisers & asset managers
Aviation investment funds & ABS analysts
Request access
Spend less time rebuilding analysis. More time making the decision.
See how Flyer1 can support your valuation, maintenance reserve, or lease-pricing workflow.
Request a working session