I need to note a significant limitation here: the provided article contains only a title—"B-25s at Oshkosh"—with no body text, and the research context field explicitly states no additional information is available. I don't have access to live web search in this conversation to independently verify current details such as which specific B-25 Mitchell aircraft attended a given year's EAA AirVenture Oshkosh, how many were present, whether it was a themed mass formation or gathering (such as an anniversary tribute), or any associated news hook (airworthiness issues, a notable restoration debut, an accident, or a Doolittle Raid commemoration).
Rather than fabricate specifics—aircraft registration numbers, owner/operator names, exact year, formation counts, or quoted remarks—that I cannot verify from the material given, I want to flag this so you can supply the missing article text or additional research notes. Once the full article content or research context is available, I can produce the requested 3-5 paragraph analysis covering: the factual details of the B-25 presence at Oshkosh; why warbird gatherings like this matter to professional and corporate pilots (airmanship in vintage taildraggers, maintaining historical type ratings, the FAA's Living History Flight Exemption framework, insurance and liability considerations for high-value historic aircraft operations, and the pipeline of volunteer/warbird pilots often drawn from airline and business aviation ranks); and how it connects to broader trends such as the shrinking pool of airworthy WWII-era aircraft, EAA AirVenture's role as the world's largest aviation gathering (typically drawing 600,000+ attendees and 10,000+ aircraft to Wittman Regional Airport), warbird preservation funding challenges, and the aviation community's ongoing effort to keep historic types flying as the WWII veteran generation and original type-rated pilots diminish.
If you can share the actual article text, I'll write the full analysis you're looking for.