Aircraft_Comparison_Methodology
How we source, validate, and present aircraft specifications with manufacturer-verified accuracy
> Executive Summary
Jet Comparison Hub prioritizes manufacturer specifications as the authoritative source for all aircraft data. When discrepancies arise between database sources and manufacturer specifications, we always defer to the manufacturer. This methodology ensures buyers make decisions based on official, verified performance data.
[1] Data Source Hierarchy
Primary Source: Manufacturer Official Specifications
Official manufacturer websites and specification sheets are our primary and authoritative source. Examples:
- >Embraer.com/executive-jets
- >Bombardier.com/aircraft
- >Gulfstream.com/aircraft
- >DassaultFalcon.com
ā All aircraft names in comparisons link directly to manufacturer specification pages
Secondary Source: Industry Aviation Databases
We aggregate data from leading aviation industry databases via API integration:
- ā¢Performance specs: Range, speed, altitude, passenger capacity
- ā¢Market data: Inventory counts, pricing, time on market
- ā¢Operating costs: Fuel, maintenance, crew
ā When database values conflict with manufacturer specs, we update our data to match manufacturer values
Tertiary Sources: Industry Publications
Aviation publications used for historical context and market analysis only. Never used as primary spec source.
[2] Data Validation Process
Step 1: Initial Data Collection
We populate our database via industry API integrations, fetching:
await fetchPerformanceSpecs(modelId, {
fields: [
'cruis_speed',
'max_range_miles',
'ceiling_feet',
'number_of_passengers',
'baggage_volume'
]
})Step 2: Cross-Reference with Manufacturer
Every specification is cross-referenced against official manufacturer data. Example audit findings:
Phenom 300E Discrepancy:
Database: 385 kts cruise ā Manufacturer: 464 kts (high-speed cruise)
Praetor 600 Range:
Database: 4,040 nm ā Manufacturer: 4,018 nm (with 4 passengers)
Step 3: Database Corrections
When discrepancies are found, we immediately update our database:
ā Updated Phenom 300E cruise speed: 385 ā 464 kts ā Updated Phenom 300E range: 2,033 ā 2,010 nm ā Updated Praetor 600 range: 4,040 ā 4,018 nm ā Updated Challenger 3500 speed: 442 ā 470 kts ā Updated Challenger 3500 passengers: 9 ā 10
Step 4: Ongoing Monitoring
We maintain a periodic audit schedule to catch manufacturer specification updates, typically when:
- New aircraft variants are released
- Performance improvements are certified
- Engine upgrades are introduced
[3] Understanding Specification Variability
ā ļø Why do specifications vary?
Aircraft performance is not absolute. The same model can show different specifications based on configuration, load, and conditions. Understanding these variables is crucial for informed comparison.
āļø Range Variations
- ā¢Passenger load: "4 pax @ 200 lb each"
- ā¢Fuel reserves: NBAA IFR vs actual
- ā¢Baggage: Full tanks vs full bags
ā” Speed Variations
- ā¢Typical cruise: Most economical
- ā¢High-speed cruise: Maximum speed
- ā¢Max cruise: Structural limit
š„ Passenger Capacity
- ā¢"Up to" max: Certified maximum
- ā¢Typical config: Standard layout
- ā¢Custom layouts: Owner preference
šļø Altitude & Conditions
- ā¢ISA conditions: Standard day
- ā¢Temperature: Hot & high impact
- ā¢Wind: Headwind vs tailwind
Our Standard: We display manufacturer-specified performance under their stated conditions (e.g., "2,010 nm with 5 occupants, NBAA IFR reserves") and link to full specification sheets for detailed mission planning.
[4] Transparency & Attribution
Direct Links to Manufacturer Pages
Every aircraft name in our comparison tool links directly to the manufacturer's official specification page. This allows users to:
- Verify specifications independently
- Access detailed performance charts
- Download official specification sheets
- View configuration options and variants
Data Source Disclaimers
Our comparison panel displays a prominent disclaimer:
ā Data Source Notice
Performance data sourced from industry databases and aviation data providers. For official specifications, please visit the manufacturer's website via the aircraft name links. Manufacturer specifications are the authoritative source.
Audit Trail
We maintain documentation of all specification audits and corrections:
- DATA-ACCURACY-AUDIT.md: Full audit findings and corrections
- Git commit history: Timestamp and rationale for each update
- Manufacturer source URLs: Documented for each correction
[5] Continuous Improvement
Report Inaccuracies
Found a specification that doesn't match the manufacturer's official data? We want to know.
>Email: data@jetcomparisonhub.com
Include: Aircraft model, specification in question, link to manufacturer source
ā Our Commitment
Jet Comparison Hub exists to provide accurate, manufacturer-verified aircraft specifications for informed acquisition decisions. We will always:
- āPrioritize manufacturer specifications as the authoritative source
- āImmediately correct discrepancies when found
- āProvide direct links to manufacturer specification pages
- āMaintain transparency about data sources and methodology
- āDocument all audits and corrections with full attribution