Examples of use of Yb
1. Besides the B–24 Liberator, the American Advances in Aviation stamp set includes. _Beechcraft Bonanza, a private plane featuring a distinctive V tail to reduce weight and drag. _Grumman F6F Hellcat, a World War II workhorse fighter flying from aircraft carriers. _Boeing B–2' Superfortress long–range bomber that served in both World War II and Korea. _Northrop YB–4' Flying Wing, a futuristic project in the late 1'40s. _Consolidated PBY Catalina flying boat, first operated in 1'36. _Ercoupe 415, designed in the mid–1'30s introducing safe, practical technologies for general aviation. _Republic P–47 Thunderbolt, an immense, fast rugged fighter that saw wide use in World War II. _Lockheed P–80 Shooting Star, the first operational U.S. jet fighter. _Boeing 247, the first modern commercial airliner. ___ On the Net÷ U.S.