Latitude 35 Logbook

Latitude 35 Logbook is the premier flight logbook, fleet airworthiness ledger, and tax compliance platform engineered for aircraft owners, flight departments, commercial operators, flying clubs, and professional pilots. Built around the offline-first "Submarine Principle," Latitude 35 operates seamlessly in remote cockpits without internet connectivity, automatically syncing your records when back online. With its "Two-Way Mirror" single-ledger architecture, Latitude 35 eliminates duplicate entry. One unified log serves both pilot regulatory compliance (FAA flight hours, engine meters, currency) and accountant audit defense (IRS business deductions, passenger tax classifications, S-Corp/K-1 compliance). KEY FEATURES: SMART FLIGHT LOGGING & COCKPIT METRICS • Dual Engine Meters: Track Hobbs and Tachometer hours with automatic pre-population of start meters from the prior flight. • Flight Metrics: Record distance (NM) and fuel burn (gal) with dynamic live duration calculations. • 5,900+ Airport Database: Instant search across US civil, military, and charted private airfields, plus international hubs. Register unlisted grass strips on the fly. • Quick-Pick Suggestion Chips: One-tap departure selection from your last 4 visited airfields. • Draft to Final Lifecycle: Record pre-flight details in Draft, finalize post-flight with automated validation, or reopen for auditor adjustments. IRS TAX AUDIT & COMPLIANCE DEFENSE • 11 Regulatory Purposes: Business, Training, Investment, Maintenance, Incidental Stop, Personal, Commuting, Charity, and Taxable Entertainment. • Granular Classifications: Track Charter, Third-Party Lease, Neither (C/L/N), and Reposition flights (Y/N). • Tax Justification Narrative: Document detailed business purposes and client meetings required for tax and insurance deductions. • 20-Column Aircraft Flight Record: Full-fidelity compliance grid matching aviation tax consultant standards. FLEET AIRWORTHINESS & INSPECTION TRACKING • 13-Row Inspection Matrix: Track ARROW documents and AV1ATES + 50-hr inspections (Annual, 100-Hr, Pitot-Static, Transponder, Altimeter, ELT, VOR, ADs) with days/hours remaining countdowns. • Airworthiness Badges: Visual indicators (Airworthy, Warning, Grounded) driven by meter readings and calendar expirations. UNIVERSAL SQUAWKS & FAA RETURN TO SERVICE (RTS) • 9 Aircraft Systems: Report discrepancies across Powerplant, Propeller, Airframe, Avionics, Instruments, Electrical, Fuel, Gear/Brakes, and Flight Controls. • 3-Tier Severity: AOG (grounding interlock), Deferrable (MEL/91.213), and Minor (Monitor). • Interactive MEL Checklist: 26 items across Day VFR (A TOMATO FLAMES), Night VFR (FLAPS), and IFR (GRABCARD) with physical INOP placard tracking. • FAA AC 120-78A Signatures: Mechanic sign-off, A&P/IA certificate tracking, meter readings at RTS, and 14 CFR § 43.9 compliance statements. • PDF Maintenance Releases: Client-side generation of professional 8.5x11 RTS certificates. PASSENGER DIRECTORY & TAX MANIFEST • IRS Role & Tax Badges: Classify occupants by role (Business, Entertainment, Training, Maintenance) and tax status (W-2, K-1, 1099, None). • In-Form Registration: Add new passengers directly during flight entry without losing form state. • Seat Capacity Safeguards: Live passenger capacity monitoring against aircraft seating limits. COMPLIANCE & RENEWALS TRACKER • Monitor 28-day FAA/Jeppesen AIRAC navigation cycles, Garmin updates, ForeFlight subscriptions, and aircraft insurance policies. EXECUTIVE EXCEL & WORKSPACES • Multi-Sheet Excel (.xlsx) Exports: Professional OpenXML spreadsheets styled with navy executive headers and live formulas (SUM, AVERAGE, COUNTA). • Multi-Tenancy Workspaces: Isolated workspaces with role-based permissions (Owner, Admin, Pilot, Maintenance, Accounts). Take command of your cockpit, fleet airworthiness, and tax compliance with Latitude 35 Logbook.