ON THE MACHINE
No cloud. No account.
Unzip, run, open the browser. A sample mission (26-T-4521) is created so you can click the desk, the hot log, and the print preview immediately. Delete it from Missions when you start a real one.
Civil Air Patrol is a volunteer nonprofit. CAP Defender Logbook™ packs are a modest $1.00 USD each for Windows, macOS, and Linux. Pay with card through Stripe. You receive a download for the platform you paid for, not the other two.
Unzip, run, open the browser. A sample mission (26-T-4521) is created so you can click the desk, the hot log, and the print preview immediately. Delete it from Missions when you start a real one.
Portable zips, same layout as Moonraker Logbook®. Windows and macOS include Python. Linux is a clean zip — Python 3.10+ is already on most PCs. The fee stays $1.00 USD per platform.
Portable zip includes Python. Double-click CAPDefenderLogbook.bat. Windows 10 or 11, 64-bit. Opens http://127.0.0.1:8770/
Portable zip includes Python for Intel and Apple Silicon. Double-click Start CAP Defender Logbook.command. macOS 11 and later.
Clean zip. Unzip, then chmod +x run.sh and ./run.sh, or python3 server.py. Tested on Ubuntu 22.04 LTS and later. Opens http://127.0.0.1:8770/
Payment is processed by Stripe. You receive a download link for the platform you paid for — not the other two. Need Windows and Linux? Buy each pack. By paying you agree to the terms of sale and that CAP Defender Logbook™ is a trademark of VossTek, copyright © 2026 VossTek. All rights reserved. Not an official Civil Air Patrol product.