Havoc
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Douglas A-20 Havoc With Caterpillar Tracked Landing Gear 1947
http://airboyd.tv Caterpillar Landing Gear - "Wright Field, Ohio: Tractor-type landing gear, developed by the Army for quick air transport to unpaved ... -
Douglas DB-7 (A-20) Havoc Night Fighters
Newsreel introducing the Douglas Havoc night fighter in Britain