The Sciathán Iolar was a heavy, twin-engine, twin-boom fighter in service of the SDF-Army and the SDF-Navy in the roles of long-range fighters, reconnaissance planes, attack aircraft and night fighters. The first aircraft-mounted radars of the SDF were mounted on these aircraft.
The Iolar went through a number of armaments during her service life, from six Gabha R-22 machine guns in the wings and two more in the rear cockpit, to four 20mm autocanons in the wings and two Gabha R-22 machine guns in the rear cockpit.
A common feature of all variants was, that they could carry up to 500 kilograms of bombs, torpedoes or, after they came up, rockets, which made them fearsome attack aircraft.
Introduced in 1938.
- Based on the Dutch Fokker G.I.