The Ross R-2 Ibis was a single seat, mid-wing, gull winged glider that was designed by Harland Ross in about 1938, under a commission from the Soaring Society of America.
[1][2] With the success of the Ross RS-1 Zanonia placing third at the 1937 US Nationals and also winning second place in the Eaton Design Contest, the Soaring Society of America commissioned Ross to design and build a new sailplane for the SSA's promotional use.
[1][2] Even though the sole example was only flown for three years the R-2 lead to the Ross RH-3 design.
[1][2] In use the R-2 was quite successful, making the first wave soaring flight in the United States on 25 October 1938 in the White Mountains of New Hampshire.
[1][2] The glider was written off after an auto-towing accident in 1940 after the pilot attempted to reverse the tow.