The BICh-26 was a tailless jet fighter designed in the Soviet Union from 1947.
After the close of World War II, Boris Cheranovsky was running a de facto design bureau working on jet fighter aircraft.
Not only was Cheranovsky involved with jet propulsion, he also studied variable geometry with the BICh-24 and BICh-25, which were designed with variable sweep wings pivoting outboard of the fuselage to help alleviate centre of pressure changes.
Also envisaged was a stressed skin light alloy tailless jet fighter with powered flying controls and pressurised cockpit, designated BICh-26.
Cheranovsky's failing health from 1948 prevented further progress on these projects.