David Sawires — Work & Projects
Commercial Pilot, CFII, and software engineer. I build tools at the intersection of aviation and technology — from production SaaS to custom hardware and flight simulations.
9
Projects
3
Live Products
5+
Years Building
CPL · CFII · IR
Certs
Trim
Flight training command center for freelance CFIs. Full-stack Next.js 16 app with Supabase backend, real-time chat, FAA-compliant endorsement engine, student portal, and PWA support. Live in production.
Command Center
4 active students · 2 lessons this week
Free Aviation Tools
17 free calculators built on a locked three-file pattern (pure-function math + Vitest tests + thin React shell) — METAR · Endorsements · Currency · W&B · Density Altitude · Crosswind · TOD · Holding · Wind Correction · True Airspeed · Units · VFR Minimums · Stall at Bank · Magnetic Variation · Fuel Planning · Climb Gradient · Checkride Checklist. 509 unit tests cross-checked against the FAA Pilot's Handbook, AIM, and CFR. Per-tool OG cards, HowTo JSON-LD, sitemap-indexed. Shipped 11 in a single evening via parallel sub-agents.
AutoBrief
B2B AI dispatcher for flight schools. GO/NO-GO decision engine, fleet scheduling, weather-aware preflight checks, and multi-instructor coordination. Live in localStorage v1.
JARVIS HUD
Electron-based heads-up display app for Windows. Overlays live system info, task context, and AI summaries on top of any workflow. Custom IPC bridge between renderer and native system calls.
Arbby Edge
Real-time prediction market arbitrage scanner across Polymarket and Kalshi. Detects mispriced contracts, calculates edge, and surfaces actionable spreads. Python backend with a live web dashboard.
3D-Printed C172
Full physics simulation and flight model for a 3D-printed RC Cessna 172. Custom aerodynamic model, control surface tuning, and sim-to-real validation. Designed for DIY build replication.
Kinect Drone Control
Gesture-based drone control system using Microsoft Kinect SDK. Maps skeletal joint positions to flight commands over a Bluetooth trainer port, enabling hands-free RC control.
Tilt-Wing VTOL
Design and build of a custom tilt-wing VTOL aircraft. Covers aerodynamic layout, control surface geometry, motor sizing, and transition flight modeling from hover to cruise.
Desktop Sentinel
Windows-native real-time object detection app using COCO-SSD. Captures desktop frames, runs inference, and overlays bounding boxes with class labels at near-real-time frame rates.