It is only available with a nose gear, thus to label it "A" is redundant.
Ditto the 12.
When Vans started the only thing you could get was a tailwheel, the 3,4, and 6. The 6 was eventually offered with the nose gear, thus the suffix "A" was added to differentiate tail vs nose gear.
Flying as of 12/4/2010
Phase 1 done, 2/4/2011
Sold after 240+ wonderful hours of flight.
"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."