Interestingly enough, Canada did, and does, have a pretty decent aircraft industry. After Avro went belly-up, de Havilland Canada produced a long line of fantastic short-takeoff-and-landing aircraft (Beaver, Otter, Caribou, Twin Otter, and the Dash-7), at least one of which (the Caribou) flew with the US Army in Vietnam. The Dash-8 is a reasonably successful turboprop airliner, and the Bombardier Canadair Regional Jet (CRJ-200, CRJ-700, CRJ-900) is the mainstay of a lot of regional jet fleets for carriers like Delta Connection. But they got out of the military aircraft industry when the cancellation of the Arrow put Avro under.
}:-)4
I'm sorry to dissapoint you, but a lot of the F18's f15's etc. parts are made in various places in Canada.
The Canadian CF18 hornet is built to Canadian Airforce requirements, they have features not found on USAF models. Canada uses them for and has longer range requirements for them than we do, they double as their long range bomber.
Much of the aircraft industry that we know today was in fact founded in Canada, as was intercontinental flights. Madonald Douglas builder of the first pressurized long range passenger jets was a Canadian.
The aircraft industry has a very interesting (with heavy Canadian influence) history. You should reseach it sometime.