Some models imported to the United States are registered as Spectrum Aircraft SA-26 Vulcan.

The A-26 has an extra 3° degree sweepback of the wings from its single engine counterpart, the A-20.

[1] An example of the A-26 was demonstrated at the 2000 Experimental Aircraft Association AirVenture airshow in Oshkosh, Wisconsin.

[2] Spectrum Aircraft imported versions for the American market.

[3] The Aeroprakt A-36 Vulcan is an updated factory built Rotax 912S powered twin.