THE RADAR LIBRARY
Aircraft financing, maintenance, records, and ownership guides
62 guides and 11 free tools for aircraft buyers, owners, and lenders.
INTERACTIVE AIRCRAFT TOOLS
Run the numbers before you commit.
Cash-to-close calculator
The cash this purchase requires, including the value gap 02 Live tool Debt structureAircraft loan calculator
Payment and balloon under one set of assumptions 03 Live tool Maintenance planningMaintenance reserve calculator
Annual and hourly reserve requirement 04 Live tool Collateral valueAircraft valuation model
Current, forward, and downside value scenarios 05 Live tool Acquisition capacityAircraft affordability planner
All-in annual cash demand, coverage, and runway 06 Live tool Lender submissionAircraft loan-readiness builder
Readiness score, blockers, and packet plan 07 Live tool Records and valueAircraft records-risk assessment
Risk tier, value sensitivity, and recovery actions 08 Live tool Ownership economicsAircraft operating-cost calculator
Annual demand, effective hourly cost, and downside cases 09 Live tool Records readinessAircraft records-completeness scorecard
Review coverage, critical gaps, and next evidence priorities 10 Live tool Airworthiness directivesFAA airworthiness directive lookup
The ADs that name the make and model, in effect and superseded 11 Live tool FAA registryN-number lookup
The aircraft’s FAA record, with its model page, value and history where publicBUYING AND BORROWING
Financing & acquisition
Structure the purchase: equity, loan terms, closing mechanics, and what a lender will ask for before funding.
Buy side Aircraft Acquisition Due Diligence Checklist
A working aircraft acquisition due diligence checklist: who owns each finding, what the purchase agreement must lock in, and when a buyer can still walk.
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Value opinions Aircraft Appraisal: Process, Cost, and Report Checklist
What an aircraft appraisal should contain, when a desktop report is enough, and how to catch a value conclusion built on the wrong serial number.
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Cash to close Aircraft Down Payment: How Much Equity Do You Need?
Why the aircraft down payment is set by lender-accepted value and LTV, not the sticker price, and how to budget the cash the loan will never cover.
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Shop-visit funding Aircraft Engine Maintenance Reserves
Set engine maintenance reserves against the real liability: shop-visit scope, LLP cycles, escalation, and the balances you can actually claim.
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Borrower playbook Aircraft Financing: Loans, Requirements, Rates, and Records
How aircraft financing actually gets approved: the five decisions inside every secured aircraft loan and the records package that speeds up underwriting.
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Loan pricing Aircraft Loan Rates: What Determines Your Rate
Where aircraft loan rates come from: benchmark plus spread, what moves each pricing layer, and how to compare quotes without falling for the teaser rate.
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Underwriting prep Aircraft Loan Requirements: Complete Checklist
Aircraft loan requirements in two files: the borrower credit package and the aircraft collateral package, with the documents lenders ask for in each.
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Ownership economics Aircraft Ownership Costs: The Complete Budget
A seven-layer model for aircraft ownership costs, from capital and crew to downtime and depreciation, and why a single hourly number misleads.
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Deal execution Aircraft Purchase Closing Checklist
The aircraft purchase closing checklist that keeps funds, title, insurance, and delivery converging on one date, with a release sequence for closing day.
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Debt strategy Aircraft Refinancing: Process, Costs, and Records
When aircraft refinancing pays off and when it only restarts the clock: break-even math, balloon timing, and the records the new lender will re-check.
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Clear to close Aircraft Title Search and Lien Due Diligence
Run an aircraft title search that goes past the FAA record: what state law can hide, and how to turn unreleased liens into closing conditions.
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Deal evidence Aircraft Transaction Data Room: Records, Access, and Closing Control
How to structure an aircraft transaction data room by decision owner, control access by phase, and freeze the evidence a closing actually relied on.
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Market evidence Aircraft Valuation: What Determines Market Value
Aircraft valuation from comparables to a defensible range: the serial-number bridge, maintenance adjustments, and the records that make a number hold up.
Read the guidePROVE THE HISTORY
Records & diligence
Logbooks, pre-buy reviews, audits, and digitization. What a records package actually supports, and how to verify it.
AI records workflow AI for Aircraft Maintenance Records: Useful Workflows and Safe Controls
Where AI for aircraft maintenance records actually helps, where it fails, and the controls that keep confident-looking errors out of compliance decisions.
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Buyer diligence Aircraft Damage History: Records Review Guide
Why no single database proves a clean aircraft damage history, and how to reconcile logbooks, Form 337 filings, and the airframe itself before you buy.
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Lease return Aircraft Lease Return Records Checklist
A clause-driven aircraft lease return records checklist: build the matrix from the signed lease, prove LLP trace, and settle gaps before redelivery.
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Paper to searchable Aircraft Logbook Digitization Service and Checklist
What a real aircraft logbook digitization service delivers: chain of custody, page-complete scans, QC on the hardest pages, and access that opens to source.
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Logbook entry examples Aircraft Logbook Entry Examples: Annual, 100-Hour, Oil Change, AD and Return to Service
Six complete aircraft logbook entry examples (annual, 100-hour, oil change, AD, return to service, Form 337) per 14 CFR 43.9 and 43.11, plus a free template.
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Digital logbooks Aircraft Logbook Software: Searchable Records With Source Proof
How to evaluate aircraft logbook software on the tests that matter: source-linked search, handwriting OCR review, and exports that survive a transaction.
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Acquisition diligence Aircraft Pre-Buy Inspection Checklist
An aircraft pre-buy inspection checklist that ties every squawk to a contract right: scope to negotiate up front, finding classes, and a closing register.
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Pre-buy diligence Aircraft Pre-Buy Records Review: Complete Checklist
The aircraft pre-buy records review, step by step: reconcile times and AD status against source entries, trace LLPs, and classify every exception.
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Buyer workbook Aircraft Pre-Purchase Inspection Report Template
A five-sheet aircraft pre-purchase inspection report template: scope, findings register, records review, and closing exceptions, with a worked example.
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Verified baseline Aircraft Records Audit: Scope, Checklist, and Deliverables
An eight-stage aircraft records audit: prove identity, reconcile times, verify AD and LLP status, and log every exception with source evidence.
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Vendor selection Aircraft Records Management Services: Scope, Deliverables, and Selection
Aircraft records management services range from scanning to full reconciliation. How to scope the statement of work, run a pilot, and score providers.
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Evidence layer Aircraft Records Management Software
What separates aircraft records management software from a folder of PDFs: linked component history, exception tracking, and facts that open to source.
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Records intelligence Aircraft Records OCR: From Scanned Pages to Reviewable Evidence
Aircraft records OCR explained: why handwriting and serial numbers break generic engines, and how to measure accuracy around decisions, not characters.
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Keep or discard Aircraft Records Retention Requirements
Aircraft records retention requirements under 14 CFR 91.417: which records you can let go after a year, which transfer at sale, and why minimums mislead.
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Lessor records control Aircraft Technical Records Management for Lessors
Aircraft technical records management for lessors: freeze the delivery baseline, run monthly evidence controls, and start return readiness a cycle early.
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Records modernization Digital Aircraft Logbooks: Complete Guide
Digital aircraft logbook fundamentals: four maturity levels, a ten-step migration plan, and the integrity controls that keep scanned history trustworthy.
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Gap recovery Missing Aircraft Logbooks: Value, Financing, and Recovery
What missing aircraft logbooks really cost in value and financing, and a recovery plan that keeps reconstruction honest about what can be proven.
Read the guideSTAY AIRWORTHY
Maintenance & compliance
Tracking systems, ADs, service bulletins, life-limited parts, and the FAA forms that document the work.
LLP traceability Aircraft Back-to-Birth Traceability Checklist
A working checklist for back-to-birth traceability on life-limited parts: rebuild each life segment from source records and classify the gaps a buyer will question.
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Serialized parts Aircraft Component Tracking Software
How to pick aircraft component tracking software that keeps serial identity and accumulated life intact as parts move between aircraft, shops, and owners.
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Mixed fleets Aircraft Fleet Maintenance Software
What aircraft fleet maintenance software must do beyond single-tail tracking: one operating picture across mixed fleets without erasing tail-specific configuration.
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Remaining life Aircraft Life-Limited Parts Tracking
Life-limited parts tracking that holds up under audit: prove part identity, rebuild accumulated cycles across installations, and never let a gap become zero time.
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Retention & transfer Aircraft Maintenance Records: Requirements and Checklist
Which aircraft maintenance records the FAA requires, how long 91.417 says to keep them, and how to organize a set that survives an audit or a sale.
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Software buyer’s guide Aircraft Maintenance Software: 2026 Buyer’s Guide
What aircraft maintenance software does, who needs which kind, how CAMP, Traxxall, Veryon, Bluetail and Radar compare, published pricing, and how to migrate.
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Six-sheet starter Aircraft Maintenance Status Report Template
A six-sheet aircraft maintenance status report template, plus the fields that make it credible: utilization cutoff, evidence links, and an honest exception log.
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Maintenance tracking Aircraft Maintenance Tracking Software: How to Choose One
How aircraft maintenance tracking software works, what Part 91 and Part 135 operators need from it, how CAMP, Traxxall, Veryon and Radar compare, and what each costs.
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Controlled workbook Aircraft Maintenance Tracking Spreadsheet Template
This five-sheet maintenance tracking spreadsheet keeps due items, evidence, and exceptions separate, so a planning workbook never poses as a status record.
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OEM publications Aircraft Service Bulletin Tracking Guide
A defensible way to run service bulletin tracking: configuration-aware applicability, revision control, and the line between an SB and an AD.
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Part 39 compliance Airworthiness Directive Tracking Software
Airworthiness directive tracking software has to defend three decisions: does the AD apply, how was it complied with, and when does it recur.
Read the guide CAMP alternatives CAMP Systems Alternatives for Maintenance Tracking
The main alternatives to CAMP Systems maintenance tracking: Traxxall, Veryon Tracking, Radar, AviatorMX, Bluetail and WinAir, with published pricing.
Read the guide Tracker comparison CAMP vs Traxxall: Aircraft Maintenance Tracking Compared
CAMP Systems vs Traxxall, from each vendor’s own pages: ownership, how compliance gets in, onboarding, records, modules and pricing. Plus Veryon.
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Repairs & alterations FAA Form 337: Major Repair and Alteration Guide
When FAA Form 337 is required for a major repair or alteration, what belongs in each block, and the defects reviewers catch most often in a pre-buy.
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Release certificates FAA Form 8130-3: Airworthiness Approval Tag Guide
What an FAA Form 8130-3 actually certifies, how blocks 13 and 14 differ, and why the tag alone never proves a part's full life history.
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Charter operators Part 135 Maintenance Tracking Software
Why Part 135 maintenance tracking software must start from your ops specs and approved program, and how to test a vendor against conformity reality.
Read the guide Traxxall alternatives Traxxall Alternatives for Aircraft Maintenance Tracking
The main alternatives to Traxxall maintenance tracking: CAMP, Veryon Tracking, Radar, AviatorMX, Bluetail and WinAir, compared on their own published terms and pricing.
Read the guide Veryon alternatives Veryon and Flightdocs Alternatives for Maintenance Tracking
Alternatives to Veryon Tracking, formerly Flightdocs: CAMP, Traxxall, Radar, AviatorMX, Bluetail and WinAir, compared on their own published terms and pricing.
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Part 39 explained What Is an Airworthiness Directive?
What an FAA airworthiness directive is under 14 CFR Part 39, the types of AD, how owners comply and record it, and how an AD differs from a service bulletin.
Read the guideSee what Radar finds in your own records.
FOR CREDIT TEAMS
Banks & lenders
Collateral monitoring, LTV, and portfolio management for the aircraft behind every loan.
For banks and lenders Aircraft Collateral Monitoring for Banks and Lenders
The loan can stay current while the aircraft loses value. A working framework for aircraft collateral monitoring, from LTV drift and lien filings to recovery readiness.
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For aircraft lenders Aircraft Loan Portfolio Management for Banks
How banks run aircraft loan portfolio management after closing: baselines worth freezing, concentrations hiding in engine programs, and files that survive a workout.
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For credit teams Aircraft LTV Monitoring for Banks and Lenders
Aircraft LTV monitoring depends on what each number hides: which exposure, which value date, which engine status. Keep both sides of the ratio current and defensible.
Read the guideFOR BUILDERS AND SHOPS
OEMs & MROs
Records at the source: production, delivery, work orders, and Part 145 document control.
For aircraft OEMs Digital Aircraft Records for OEMs
Why OEMs should preserve the as-delivered baseline instead of overwriting it. Digital aircraft records connect factory configuration to field history and warranty claims.
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Work packages MRO Document Management for Aircraft Maintenance
MRO document management that treats records as a production control: task evidence, findings, parts trace, and a customer package built during the visit, not at delivery.
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For repair stations Part 145 Document Management Software: Requirements and Workflow
FAA and EASA Part 145 record rules differ, and software must prove which revision governed each task. What to demand from Part 145 document management software.
Read the guideMODEL IT YOURSELF
Tools & calculators
Guides that pair with the live calculators. Run the numbers, then challenge the assumptions.
Balance-sheet fit Aircraft Affordability Calculator and Ownership Capacity Planner
Run an aircraft affordability calculator on the page: cash to close, annual carry, and the liquidity left after the wire. Then stress the plan before committing.
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Financing tool Aircraft Loan Calculator
Use the aircraft loan calculator on this page to estimate payment, amount financed, and balloon, then see how lenders set the number they will actually advance.
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Underwriting prep Aircraft Loan Readiness and Lender Packet Builder
Score your aircraft loan readiness on the page before a lender does. Catch the stale appraisal or missing engine program statement that stalls underwriting.
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Planning calculator Aircraft Maintenance Reserve Calculator
Build hourly and annual aircraft maintenance reserves in the on-page calculator, with the engine, APU, and inspection math shown so nothing is double counted.
Use the calculator
Ownership planning tool Aircraft Operating Cost Calculator
An aircraft operating cost calculator you can run right on the page, plus what a single hourly number hides: fixed costs spread across fewer flight hours.
Use the calculator
Records review tool Aircraft Records Completeness Scorecard
Work through a 16-group aircraft records completeness scorecard on the page. A high score with one unsupported life-limited part is still a weak file.
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Missing logbooks Aircraft Records Risk and Value Impact Assessment
Missing logbooks rarely mean one flat discount. Classify the aircraft records gap in the on-page tool and see which facts you can still prove to a buyer or lender.
Read the guideSee what Radar finds in your own records.
Bring a tail, a records package, or a loan portfolio. We will show you the evidence behind it.