Paul,
It is certainly used that way in the Micco/Lanshe versions of the Meyers 145, and the Zlin Z242L is for aerobatic instruction, too. There are some advantages of side by side aerobatic instruction, teaching and g-wise. The tri-gear aircraft have good runway visibility, too, for takeoffs and landings. The first Meyers 145s were taildraggers, but some Meyers-145T tri-gear versions were built, too. The Micco/Lanshe SP26A 260 models are substantially improved over the Meyers 145.
The Micco/Lanshe 260 referenced in your link was at SZP so that the pilot could take a week of advanced aerobatic instruction from a Master Aerobatic CFI-Rich Stowell who is based there. The visiting pilot from Montana had a flock of ratings, including aerobatic CFI, and it was a great week for him. Not sure how the original Meyers 145 was rated-aircraft were built to lesser standards then and only 145 horsepower in the Meyers, but some were engine-upgraded, especially by Gar Williams in Illinois, who owned a couple of M-145s.
Specific to your question, the Z242L was developed from the original successful and renown Zlin Z.26 Trener two-place tandem seating aerobatic aircraft (first flight-1947) as a two place side by side aerobatic trainer. N110AM, the Moravan Zlin Z242L is owned by husband and wife-both are pilots who fly it, alone or together, chutes worn. Moravan in the Czech Republic built all the Z242Ls.
