Part of the former Willow Run Bomber Plant is shown at Willow Run Airport in Ypsilanti Township, Mich., Wednesday, July 17, 2013. The bomber plant west of Detroit was where, at President Franklin Roosevelt's urging, Ford Motor Co. switched from making cars to planes and produced one an hour _ nearly 9,000 B-24 Liberator bombers in all _ to help win the war in Europe. At the time of its 1940s construction, the plant was the largest factory in the world, employing 40,000 men and women, including Rose Will Monroe, who was believed to have been the inspiration for the famed Rosie the Riveter character. The factory went back to auto production for half a century under the General Motors name and closed for good last decade. The plan is to knock it down. But a group of donors are hoping to save at least a piece of it so they can erect a museum dedicated to Detroit's role as the "Arsenal of Democracy." To make that happen, though, organizers need to raise $5 million by Aug. 1. "Rosie the Riveter" dressed in overalls and bandanna was introduced as a symbol of patriotic womanhood in the 1940's. Rose Will Monroe played "Rosie the Riveter," the nation's poster girl for women joining the work force during World War II. Monroe was working as a riveter building B-29 and B-24 military airplanes at the Willow Run Aircraft Factory in Ypsilanti, Mich., when she was asked to star in a promotional film about the war effort. The B-17G "Yankee Lady" is shown in front of the old Willow Run Bomber Plant at Willow Run Airport in Ypsilanti Township, Mich., Wednesday, July 17, 2013. (AP) - The Detroit-area factory where Rosie the Riveter showed that a woman could do a "man's work" by building World War II-era bombers, making her an enduring symbol of American female empowerment, will be demolished if money can't be found to save it. The Willow Run Bomber Plant, a 332-acre former Ford Motor Co. factory west of Detroit that churned out nearly 9,000 B-24 Liberator bombers during World War II, is slated to be torn down unless a group can raise $3.5 million by Thursday to convert at least some of the structure into a new, expanded home for the nearby Yankee Art Museum. "The younger generation needs to know what people went through and be able to go and see what they did and how they did it for our country," Larry Doe, a 70-year-old Ypsilanti Township resident who has given to the cause, said recently before joining other donors for a trip on a B-17. Although women performed what had been male-dominated roles in plants all over the country during the war, it was a Willow Run worker - one of an untold number of women in its 40,000-person workforce - who caught the eye of Hollywood producers casting a "riveter" for a government film about the war effort at home. Rose Will Monroe, a Kentucky native who moved to Michigan during the war, starred as herself in the film and became one of the best-known figures of that era. She represented the thousands of Rosies who took factory jobs making munitions, weaponry and other things while the nation's men were off fighting in Europe and the Pacific. Although many Rosies were let go once the war was over and the soldiers returned home, they had shown that women were capable of doing jobs that had traditionally been done by only men. An illustrated poster of a determined-looking Rosie the Riveter rolling up her sleeve with the slogan, "We can do it!," became an iconic symbol of female empowerment for American women. The Willow Run factory went back to making automobiles after the war ended, and it did so for more than a half-century under the General Motors name before closing for good in 2010. Now, Doe and other donors are hoping to save at least some of the massive structure to convert it into the new home of the Yankee Air Museum. The museum's original headquarters burned down in 2004, and it is currently housed at Willow Run Airport in Van Buren Township, which is near Ypsilanti Township, where the plant is located. We now have the opportunity to actually take a piece of this plant. It's due to be demolished over the next two or three years," said Dennis Norton, president of the Michigan Aerospace Foundation. There's no further use for it. It's too big. It's too old to be used in modern-day manufacturing. Organizers of the "Save the Willow Run Bomber Plant" campaign say they need $8 million to fund their "separation" plan. They want to acquire part of the 5 million-square-foot plant, secure it and re-establish utility services such as water, gas and electric. They have raised $4.5 million of what they need and are hoping to entice major donors to come forward with six- and seven-figure commitments. Detroit's historic bankruptcy filing two weeks ago isn't expected to have any effect on fundraising, said Dan Pierce, a spokesman for the effort. "We have not heard this from any prospective donors and don't think we will," he said. Yankee Air Museum backers are hoping to tap into some of that patented Rosie resolve in their efforts to transform Willow Run. The hulking facility currently is in the hands of the Revitalizing Auto Communities Environmental Response Trust, which took over sites around the country left behind in the bankruptcy of GM. Much of the plant has fallen into disrepair, including the portion the Yankee Air Museum is eyeing. The factory floor is littered with debris that sits among rusted-out and busted-up equipment once used to make transmissions. Norton and his colleagues hope to change that soon. The millions left to raise represents "a significant amount of money," he said. However, if we didn't think we could do it, we wouldn't have started it in the first place. Reach Mike Householder at mhouseholder@ap.org or Follow him on Twitter at https://twitter.com/mikehouseholder