All the airplanes I had were not much fun with the engine off. And I couldn't fish from them.
My boats are usually serviceable without power, and put dinner on the table (5 in the shed, another under construction).
I'm good flying someone else's airplane, for now.
It would be difficult to discuss the project's merits (good or bad) without some discussion of discipline. HBA exists, in part, to educate. I do agree that critique of processes, mental and otherwise, can occur without personal attacks.
Several twin airplanes were manufactured and sold with 160 hp engines... not sure how comparable they would be to Velocity. I got my multi in a Twin Comanche. I was able to fly the pattern on one engine, but can't remember trying to climb on one with gear down.
Google is your friend. You won't have any trouble finding numerous instances of customers who ultimately ate the cost of a Viking engine to eventually go another path.
Mark Kettering (Aeromomentum) is forthcoming and informative. His engines are new... Vikings are not.
Not even a contest in my...