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Well, you'll have to wait for the video... haven't mastered the art of driving and filming at the same time yet.
Ran some dial-in time yesterday. We had a BEAUTIFUL day here, with nice calm water.
For the tuning time, I just ran an X435, then went down to an X430, and finally ended up with an X632. NONE of these props are what I'd use for SAW runs, but they were more prop than the current setup could handle, so more than enough for now.
The boat seems to run nose-high, even with the CG up around 32%. I moved the strut down to where the bottom of it is just a tad lower than the sponsons, and the boat still seemed to be lifting the nose. I will continue to play with that. I may need to explore the idea of a flat-bottomed strut, like the stingers that the twin guys are using on these, to help extend the ride area back a bit. I'm not sure this hull was designed to have the prop so far out the back without them.
At this point, there is NO WAY I can put down full-power. Boat just hops around too much. I need to get some testing time where I am not so afraid to let her rip (and where I actually have a recovery boat available). I do see potential there, just need to find the sweet spot.
I was thinking that, perhaps, I should mimic having the long stingers with flats on them on each sponson, to act as "trim-tabs"?
The boat has a really weird "crabbing" that it does currently. I can see this is going to be VERY sensitive to weight balance side-to-side. When you first launch, the hull really drags over to the left. Almost looks like it's going to flip over. Then, as you get a little faster, the hull "crabs" to the left. The back end pulls over to the right and the nose points to the left. Seems to straighten out once you really get it on plane. I suspect that the rudder blade made be too draggy for this little hull.
I still question whether the rudder might be better centered, but everyone keeps telling me that this will negatively impact speed. Going to fab a much thinner rudder blade for testing and see if this helps.
Definitely not "plug and play", but that's part of the challenge. 80mph seems pretty far off at this point, but we'll keep pushing for it. If people can get the 25.5" Delta Force monos to go 80+, I don't see why this can't can't do it. We'll see....
Ran some dial-in time yesterday. We had a BEAUTIFUL day here, with nice calm water.
For the tuning time, I just ran an X435, then went down to an X430, and finally ended up with an X632. NONE of these props are what I'd use for SAW runs, but they were more prop than the current setup could handle, so more than enough for now.
The boat seems to run nose-high, even with the CG up around 32%. I moved the strut down to where the bottom of it is just a tad lower than the sponsons, and the boat still seemed to be lifting the nose. I will continue to play with that. I may need to explore the idea of a flat-bottomed strut, like the stingers that the twin guys are using on these, to help extend the ride area back a bit. I'm not sure this hull was designed to have the prop so far out the back without them.
At this point, there is NO WAY I can put down full-power. Boat just hops around too much. I need to get some testing time where I am not so afraid to let her rip (and where I actually have a recovery boat available). I do see potential there, just need to find the sweet spot.
I was thinking that, perhaps, I should mimic having the long stingers with flats on them on each sponson, to act as "trim-tabs"?
The boat has a really weird "crabbing" that it does currently. I can see this is going to be VERY sensitive to weight balance side-to-side. When you first launch, the hull really drags over to the left. Almost looks like it's going to flip over. Then, as you get a little faster, the hull "crabs" to the left. The back end pulls over to the right and the nose points to the left. Seems to straighten out once you really get it on plane. I suspect that the rudder blade made be too draggy for this little hull.
I still question whether the rudder might be better centered, but everyone keeps telling me that this will negatively impact speed. Going to fab a much thinner rudder blade for testing and see if this helps.
Definitely not "plug and play", but that's part of the challenge. 80mph seems pretty far off at this point, but we'll keep pushing for it. If people can get the 25.5" Delta Force monos to go 80+, I don't see why this can't can't do it. We'll see....
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