750hp Wright SGR-1820 with two-blade prop; span: 50'0" length: 37'6" load: 3265# v: 229/207/68 range: 1225 ceiling: 28,000'; ff: 9/17/35 (p: T C Van Stone). POP: 1 prototype Army attack bomber [X14999] c/n 28, crashed on take-off for its second flight the next day, killing Van Stone and project engineer D L Blue. Although the design evolved into A-19, V11 never was fully accepted by US military, despite the design's success in more than 100 military planes built for other nations.