Two vintage de Havilland Canada DHC-1 Chipmunks made their way into EAA AirVenture Oshkosh 2026, flown by pilots Katie Mack and Lisa Corker, marking a notable arrival during the show's 80th anniversary year. The aircraft, sourced from a museum collection, were flown in formation-style with support from Steve Thorne of Flight Chops, whose modern, fully-equipped aircraft served as a lead ship through the congested arrival corridor. The Chipmunks themselves are bare-bones taildraggers built to minimum VFR day equipment standards: no navigational avionics, an inoperative attitude indicator repurposed as an iPhone mount, marginally functional radios, and a magnetic compass that requires the pilot to lean forward to read. Notably, the aircraft lack ADS-B Out, requiring special exemptions to transit the Class C and Bravo shelf airspace surrounding Oshkosh during arrival week—a detail that underscores how tightly regulated that airspace has become even for short-duration, high-profile events like AirVenture.
For working pilots, this account is a vivid illustration of the operational gap between vintage/warbird-category aircraft and the modern controlled airspace environment they must occasionally operate within. The Oshkosh arrival procedure (NOTAM-driven, visual, non-radar, dot-based sequencing) is already one of the most demanding VFR arrivals in the world, requiring precise airspeed control, visual acquisition of preceding traffic, and strict adherence to published visual checkpoints—all without the benefit of ATC vectoring in the traditional sense. Attempting that arrival in an aircraft with no gyro instruments, no modern nav equipment, and marginal radios raises the task-saturation bar considerably, especially for pilots making their first-ever landing at the event. The decision to pair the Chipmunks with a capable, ADS-B-equipped lead aircraft flown by an experienced Oshkosh veteran reflects sound operational risk management: leveraging a more capable aircraft's situational awareness and radio/ADS-B capability to offset the older airplanes' equipment limitations, rather than relying solely on individual pilot skill in a high-traffic, high-consequence environment.
This scenario also highlights a recurring theme in general and business aviation: the increasing complexity of integrating legacy, minimally-equipped aircraft into modern, ADS-B-mandated airspace. The FAA's ADS-B Out mandate has created recurring friction for warbird operators, antique aircraft owners, and vintage aerobatic/trainer fleets like the Chipmunk, many of which are flown specifically for their historical authenticity and are cost-prohibitive or philosophically undesirable to retrofit. The exemption process used here—allowing temporary access to Class C and the Bravo shelf without ADS-B—is a workaround increasingly relied upon by classic aircraft operators for major fly-in events, and it points to broader industry conversations about how to balance airspace modernization mandates with preservation of historic aviation. Business and airline pilots attending or supporting events like AirVenture should note the layered complexity of the arrival environment: even aircraft with full modern avionics find the Oshkosh arrival challenging, and the presence of minimally-equipped vintage aircraft in the same traffic flow adds another dimension of see-and-avoid vigilance that all arriving pilots must account for.
Finally, the human element of the story—first-time Oshkosh arrivals, the emotional significance of flying historic trainers into the event's 80th anniversary, and the camaraderie of experienced pilots mentoring less experienced ones through a demanding arrival—reflects the broader culture of mutual support that defines general aviation's fly-in community. It also serves as a reminder to operators across all segments, from GA to corporate flight departments, of the value in seeking experienced local knowledge or lead support when operating into unfamiliar, high-density airspace environments, regardless of the sophistication of one's own aircraft.