VL Viima

Design
The Viima II was a single engined, tandem seater biplane. Viima means Wind in English. Post war, VL was eventually absorbed into Valmet, so the aircraft is often referred to as the Valmet Viima. It had unequal span, staggered single bay wings built around two box spars with plywood ribs. The interplane struts were N shaped. The wings were fabric covered and carried four ailerons in all; the upper and lower ailerons were externally linked.

The fuselage and tail unit were constructed of chrome-molybdenum steel and fabric covered. The tailplane, mounted on the top of the fuselage, was wire braced to the small triangular fin. Both fin and tailplane were adjustable on the ground. The wide chord, deep rudder reached to the bottom of the fuselage between divided elevators. The rudder carried a trim tab and the elevators a Flettner flap.

The cockpits were close together, the forward one at mid-chord with a cut-out in the upper wing to enhance visibility. Dual control was fitted. The undercarriage was of the split axle type, with the faired main legs attached to the fuselage forward of the wings and braced by rearward struts. It used low pressure tyres and rubber in compression springing. A tailwheel was fitted. The Viima was powered by an uncowled Siemens-Halske Sh 14 radial engine.

Operational history
20 Viimas served with the Finnish Air Force until the late 1940s. They were then released for civil use, 14 appearing on the Finnish civil register, several of them fitted with a framed enclosed cockpit.

Versions
Viima I was a prototype aircraft, of which two aircraft were made. The third Viima I was the first aircraft of the series production version.

Viima II was the series production version of the trainer aircraft. 20 aircraft were built for the FAF. Another two were delivered to the Finnish Air Defence Guild.

Viima IIB was powered by a de Havilland Gipsy Major.

Operators

 * Finnish Air Force
 * Finnish Air Force

Survivors
The last airworthy Viima was sold to Belgium in the autumn of 2006.