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Are you serious! 38mph on 3s, I guess that Seaking 180 can handle it. I bet that flip was unexpected ha ha.
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NEVER SATISFIED RACING
Fine Design 32 V-Hull 4082+6s -
Yup, the flip was unexpected! It was kind of a twisting roll flip. I have a canoe at the dock so it's not to big of a deal to retrieve boats luckily. I was surprised to see the 38.8 but I also got a 34.0mph and a 36.1mph with different batteries and varying water conditions.Comment
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I shot some video yesterday. The weather was good and the water was flat. The boat did not run as well in flat water as it had the other day with a little bit of wind. I think it's because of the fairly large diameter prop (48mm) that I had on it. It time to start experimenting with real (metal) props I guess. I was having trouble getting full throttle in this video because the boat just wasn't that stable. It had a lot of fast wobble/chine walking. The handling improved as the water got churned up. I wanted to include some different shots in this video but I lost the flex and prop a few minutes in. I've been using a set screw style coupler because they are shorter but I guess I'm going to have to switch to a collet style.
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I finally got my new flex cut down and collet installed. Ran the boat yesterday in the rough. 3S is really just to much for the boat in the rough water. You never have the chance to go full throttle. It works well on 2S though. I still need to test some props and try some different trim tab settings.
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I haven't been running my boats much lately but I finally got the Stealthwake out this afternoon. It's still such a fun boat. I ran some real metal props for the first time.
Octura X642: 2S - 22.3mph, 3S - 33.3mph
Octura X645: 2S - 24.5mph, 3S - 36.6mph
Octura M645: 2S - 26.6mph, 3S - 44.4mph!
I'm kind of wondering if the 44.4 was a GPS fluke or maybe something that happened in a wreck (I did have a few minor rolls/spins/flips). The boat does seem very fast though with the M prop on 3S. The x642 seemed to handle better though. I think the boat just doesn't like larger diameter props because of it's narrow beam. With the faster speeds and relatively light weight of the boat, it's on the verge of kiting once in a while when I run into the wind. I still haven't played with the trim tabs yet. Eventually I'd like to get this boat to run fairly fast on 3S in smooth water and still handle larger waves on 2S for when it's rough.
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I ran a few more props this morning. Water was glassy. I'm trying to keep the props under 45-46mm in diameter. It seems like that's about the limit to keep the boat stable.
ABC 1816 "turbo cut": 2S - 23.2mph, 3S - 34.7mph
Octura x646 modified (43mm diameter, detounged, cupped): 2S - 24.1mph, 3S - 36.0mph
ABC 1817-17-45: 2S - 25.7mph, 3S - 40.6mph
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I ran a couple different props on the Stealthwake yesterday. The first was an Octura N940 which has a high pitch and tiny blade area. It didn't work to well. 33.5mph on 3S and 19.4 on 2S. The second prop was a plastic Octura chopper style with 1.8 pitch and 46mm diameter. The boat didn't handle well with this prop and ran 32.5mph on 3S and 22.4 on 2S.
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I forgot to update this thread a week ago when I tried an Octura V940/3. Nothing special really. 33.2mph on 3S. I was trying to find a smaller diameter prop with a higher pitch to help the boat handle better. The V940/3 has a lot of rake and a ton of slip during acceleration. After that I ground down the stock water intake and filled it
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I've been thinking about trying 4S in this boat and finally did yesterday. This hull is a handful on 3S and 4S was pretty nuts. The water probably should have been smoother when I was running the boat and I had some rough wrecks. In most conditions, at these speeds, this boat is really on the edge of wrecking all the time. One put a 1.5" long crack in the hull right in front of the stuffing tube but perpendicular to it. The crack didn't leak much so I kept on running it. Most of the wrecks were with a M645. I tried the V940/3 and was only able to get 40.3mph out of it. I switched down to 3S, the water must have calmed down, and the boat ran beautifully on the M645. Top speed was 38.9mph. I have never been able to replicate the earlier 44mph run on that prop.
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Since the last 3S run went so well I started questioning why the 4S testing went so badly. So I tried 4S again with the M645 prop and flatter water. Much better results this time. I still had a bad crash but the boat ran a lot better and hit 47.2mph. That's not very fast for the group of guys on this message board but I feel like its really fast for this short, narrow, plastic deep-V that originally did under 20mph.
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Nice job big guy, thanks for sharing updates on this boat.NEVER SATISFIED RACING
Fine Design 32 V-Hull 4082+6sComment
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Wow, super awesome job. You my friend are true hobbyist!
Rafael Lopez
Product Developer-Pro Boat
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