Evans, you don't mention the hp of the engine, but I'd be inclined towards the "short shaft". My concern is that the inflatable floors are not really very rigid, and the torque on the boat generated by a long shaft would be more likely to bend the floor in use, compared to the short shaft where the lever arm is shorter. Or am I purely wrong in this assumption?
Ann & Jim, U.S. s/v Insatiable II, SE Qld, for a while
This begs the question.. can a shaft on a modest HP outboard be too long? And would it not be better to err on the long side of ideal?
We have a 5HP Yamaha with long shaft (this was all that was available on the day) which drives our 8ft soft floor dinghy. Seems to work ok, but we can only plane with one on board, sitting as far forward as possible - I put this down to the drag of the soft slatted floor.
The light at the end of the tunnel are no longer the headlights of the oncoming train......yippee