AIR & SPACE MAGAZINE Yellow Waco "Classic" is one of many ways to describe it. Photo: John Slemp, www.aerographs.com April 26, 2010 A classic WACO biplane in the grass at Briscoe Field in Lawrenceville, Georgia. 1999 WACO Classic Aircraft Corporation, model YMF-5C, with a 275 horsepower Jacobs radial engine. John Slemp Get the latest stories in your inbox every weekday.