Featured Content

This archive contains extensive performance data for aircraft from the United Kingdom, United States, Germany, and Japan. Each section includes official test reports, combat evaluations, and comparative analyses conducted during and immediately after World War II.

Key Features:

  • Original wartime flight test reports
  • Performance comparison studies
  • Combat encounter reports
  • Technical specifications and data sheets
  • Engine performance and fuel studies

Updates

AUGUST 2026
Full Rebuild of the site with new CSS completed

NOVEMBER 2025
Start of Converting wwiiaircraftperformance.org to New Layout

Complete modernization of the original website with responsive design, darkmode enabled, improved navigation, and enhanced user experience while preserving all historical data and reports.

4 JULY 2025
REBUILD of spitfireperformance.com and wwiiaircraftperformance.ORG completed

Rebuild of the original pages to fit the new website architecture.

Old News

By Mike Williams and Neil Stirling
With help from our friends:
Wayne Cunningham, Brent Erickson, Dietmar Hermann, George Hopp, Anders Jonsson, Bill Marshall, Lutz Naudet, Harri Pihl, Henning Ruch and Jörn Dietrich