Either that or the RCAF museum in Trenton.
My husband is a member of the Air and Space Museum and adds a rather troubling note: Apparently the museum's holdings are not in public trust, so if the museum does fold (not just shut down--actually fold) the likely result would be to sell the museum's holdings at public auction. This would include (among others) the Arrow replica, the Lanc under restoration, and the museum's archives--which includes a decent collection of documents donated by families of people who worked in the aviation industry, including on the Arrow. In fact, my father-in-law's papers from his time with A.V. Roe, including on the Arrow, are in their holdings.