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Just got back from her maiden. I started wiht a s240 prop on 8s2p, which gave a fairly decent top speed but there was a lot of cavitation on take offs and turns. It wasnt as noticable when on the throttle hard but at lower speeds and turning it was obvious the prop is too small.
I brought it in and checked temps, turned the trim tab screws in a bit (it was rocking a bit at higher speeds), and switched to the x457 I had with me. Take offs were much better but there was still a bit of cavitation, turns were much better. I think the x4 series is the prop for this boat, but I think it would benifit from a little bit larger one at this RPM (maybe x460).
I brought it in after a few laps and turned the trim tab screws in a bit more, checked temps, and turned the turn fins up a bit. I noticed the turn fins were well into the water with the boat planed out so I angled them up a bit more. After a couple more laps, I hit the LVC..OOPS!
It turns at speed like its on rails. I think this hull could handle more speed than my DF40 could, and it could DEFINITELY handle some big water. This boat would be fun on 6s2p in a large lake with real boats jumping waves.
As far as speed, without any adjustments I am guessing I was in the 50's... 60's should be no problem at all. The Leopard doesnt seem to be any less powerfull than the Neu 2215
Temps were 130's at the esc caps, around 110-115 on the esc boards. Motor was in the 80's and 90's every time I temped it, and the batteries were too.
Here's the bad:
Last night, I ran the 32" cat that I just finished. It was much smaller and lighter, and easy to take to the pond. All I could think today after my (4) 4s lipos were ran down thte the LVC is that if I were running the cat, I would still have 2 fresh batteries left. I would really like to have a couple sets of batteries to run in this but I just dont have the money to spend.
This may be crazy talk, but if anyone is interested in this let me know, I will consider selling it and using the $$ to put into a bit smaller builds. I would have no problem making a video to show how fast it is and how well it handles. Sharp turns at 60mph are not a problem. Its an awesome specticle to run and watch, but after loading it up, Lugging it out to the water, and running down FOUR lipos, I remembered why I sold my last big mono!
I would have to sit down and think about what I have into it, but it would probably be somewhere around $750.
I brought it in and checked temps, turned the trim tab screws in a bit (it was rocking a bit at higher speeds), and switched to the x457 I had with me. Take offs were much better but there was still a bit of cavitation, turns were much better. I think the x4 series is the prop for this boat, but I think it would benifit from a little bit larger one at this RPM (maybe x460).
I brought it in after a few laps and turned the trim tab screws in a bit more, checked temps, and turned the turn fins up a bit. I noticed the turn fins were well into the water with the boat planed out so I angled them up a bit more. After a couple more laps, I hit the LVC..OOPS!
It turns at speed like its on rails. I think this hull could handle more speed than my DF40 could, and it could DEFINITELY handle some big water. This boat would be fun on 6s2p in a large lake with real boats jumping waves.
As far as speed, without any adjustments I am guessing I was in the 50's... 60's should be no problem at all. The Leopard doesnt seem to be any less powerfull than the Neu 2215
Temps were 130's at the esc caps, around 110-115 on the esc boards. Motor was in the 80's and 90's every time I temped it, and the batteries were too.
Here's the bad:
Last night, I ran the 32" cat that I just finished. It was much smaller and lighter, and easy to take to the pond. All I could think today after my (4) 4s lipos were ran down thte the LVC is that if I were running the cat, I would still have 2 fresh batteries left. I would really like to have a couple sets of batteries to run in this but I just dont have the money to spend.
This may be crazy talk, but if anyone is interested in this let me know, I will consider selling it and using the $$ to put into a bit smaller builds. I would have no problem making a video to show how fast it is and how well it handles. Sharp turns at 60mph are not a problem. Its an awesome specticle to run and watch, but after loading it up, Lugging it out to the water, and running down FOUR lipos, I remembered why I sold my last big mono!
I would have to sit down and think about what I have into it, but it would probably be somewhere around $750.
There isnt a whole lot of full throttle in this vid, or high speed turns, but it will turn at any speed. My steering rod started to bend today and it was affecting handling noticably. I'll put a larger diameter steering rod on it and really go after it next time.
Really the camera wasnt on that time either so I guess neither one counts...you can tell from the vid it hauls the mail though. 50" boats normally look slow on video. I think with some room 60 is doable.
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