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N701RW with the new Rotax 912 uls engine package from Zenith. Picture taken after the first test flight. The original vw was removed because of performance and reliability. The engine block cracked on the way to Oshkosh which allowed the oil to be pumped into the engine compartment which nearly resulted in a fire and forced landing. I found one quart of oil left in the crankcase when I taxied in at Morris, Illinois.