Loss of control in flight: Dyke Delta JD-2, N71AW, accident occurred on July 22, 2025, at Oshkosh-Wittman Field (OSH/KOSH), Oshkosh, Wisconsin

• Location: Oshkosh, Wisconsin 
• Accident Number: CEN25LA279 
• Date & Time: July 22, 2025, 14:32 Local 
• Registration: N71AW 
• Aircraft: Dyke Delta JD-2 
• Aircraft Damage: Substantial 
• Defining Event: Loss of control in flight 
• Injuries: 1 None 
• Flight Conducted Under: Part 91: General aviation - Air race/show

https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/200612/pdf

https://data.ntsb.gov/Docket?ProjectID=200612

The pilot was flying in the Homebuilt Showcase during the EAA AirVenture air show. The pilot reported that while landing with a variable tailwind the airplane touched down about 2,500 ft down the runway, bounced, and landed hard. The pilot applied brakes, and the right main tire began to squeal. The airplane departed the landing surface to the left. The right main landing gear collapsed, the nose landing gear separated. The airplane sustained substantial damage to the engine mounts and the right wing. The pilot reported that there were no mechanical malfunctions or failures that would have precluded normal operations. 

- Probable Cause: The pilot’s failure to maintain control of the airplane while landing with a tailwind.