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Airplane's
Because the rubber in tires was being used for war supplies including tank treads and jeep tires.
Many airplanes were developed during WW1.
Rationed.
the Enola Gay
there was food clothing/cloth and tires and gas Rationed in WWII.
Bristol F2b
is isinglass used in airplane windshields
Lighter than air Balloons and the airplane.
The Biggest Airplane Is... Air France A380
list five items that were rationed during WWII and why they were rationed.
its impossible to count all the tires because there are tires being made every day