Aircraft Registration Number
MS-223: William F. Yeager Aviation Collection
Right hand side view of the Sikorsky YR-4B, a military aircraft, on the ground.
Special Collections and Archives; Wright State University Libraries
Digital Services Department; Wright State University Libraries
Special Collections and Archives provides reprints or digital copies of our materials for a fee. For further information please visit their website or call (937) 775-2092.
ms223_038_002_003; Sikorsky YR-4B; Military; 42-107237