Took the boat out after lowering down the motor this weekend. I went down two holes to get it at 3.5" above the keel and it done much better. I can trim the motor all the way up now with out any prop slip or breaking loose. My first run was with a 4 blade rev 4 17p and it would go over 6000 rpm easily and need more prop. I change it to a Mirage Plus 19p and it still needed a little more prop to get the rpms down a bit. The four blade gave me a little more lift than the 3 blade but not that big of a difference in the flat calm water in the back creek that I was in. In ruff water offshore the rev 4 would do much better holding but this boat is more intended for inshore anyway even tho it will do better than most out there in the blue water. With the 19p I hit 62 mph on GPS quickly and stopped at 6000. I had a 21p that I slipped on the boat for on last quick run and it seemed to be about right far as RPM range. I got it up almost to wot when I backed out of it. I did a quick glance at the speed and saw 65 for a second but did not watch it much this run due to being in a narrow creek with many turns and short straight stretches. My son that was with me clamed to see 67 mph but I didn't see that due to worrying about where we were pointed. We were also using the GPS speed off of an app on my cell phone so not sure how accurate it is anyhow as 67 seems not possible. The boat defiantly would run 63-65ish tho if you could get it to handle at and behave at those speeds. The boat handle awesome all the way up to 62 great but once you get over that it gets a little loose. It makes you tighten you hole up a bit. Over that speed if you make any slight steering adjustments it will try to get some slight chine walk but not bad as expected for a seacraft 20. That is a common issue with these hulls over 60 but they were not designed to that any how. Also the hull is light at the moment with no gas tank or rigging. just an empty shell with a 6 gallon pony tanks so once loaded down with rigging fuel it will probably not do these numbers. Over all I am really pleased with the performance and handling of the boat. Plenty of power and if I ever used the huge deck space to carry a large load the 3 liter outboard has plenty of torque to handle any weight thrown at it. It is amazing just how much room this model has in it with the bracket and full transom. She is a very fun boat to ride in and have fun with. Just need to get the rub rail back on and the windshield then she will be ready for spring!
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Current SeaCraft projects:
68 27' SeaCraft Race boat
71 20' SeaCraft CC sf
73 23' SeaCraft CC sf
74 20' SeaCraft Sceptre
74 20' SeaCraft CC sf
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