{| |} The Stampe et Vertongen RSV 22-180 was a training biplane produced in Belgium in the 1920s. It was a conventional, single-bay biplane with staggered wings of unequal span that were braced with N-struts near their tips. The fixed undercarriage consisted of two mainwheels that were joined by a common through axle, plus a tailskid. The student pilot and the instructor sat in open cockpits in tandem that were fitted with dual controls. Construction was of mixed materials, with metal used for the undercarriage, engine mount, and cabane struts. The control surfaces were operated by a rigid linkage made of dural tube. The horizontal stabilizer was adjustable in flight, using a lever in the cockpit to adjust the aircraft's trim. Incorrect use of this latter feature led to a number of acciden