Ariane 51"

[Nevs]

if it is not a "sub-marine-rigger..You can put any prop on it, (650 kv/8s.)..

[racerr73]

The 45 amp average seems a little low to me, don't forget with castle esc's the average is the mah used from the batteries compared to how long the esc has had power connected to it. The time spent taping up and walking to launch and vice versa when removing from water and untaping is used to find the average amps. Only way to test average amps on logger correctly is connect and tape up right next to water and run the boat and disconnect as soon as its removed from the water. This will give you a more reliable reading of average amps.

Trev

[Nevs]

Yes. It is probably more "correct" to take the actual running time, (video) VS. what you have to put back in the lipos...-10%

[Nevs]

But anyway. 650 kv/10s /45 A average. Means 360 kv/18s. 25 A average..

[urbs00007]

arien

if it is not a "sub-marine-rigger..You can put any prop on it, (650 kv/8s.)..

so you are saying run it on 8-s? would 10-s be better with an appropriate esc?

[Nevs]

Yes...Always use an ESC rated 2-4s higher then you use...But there is no accurate rule. I have run 12s. boates on 12s. with YGE 200, (4-14s)..No problem..I have run boats on 12s with YEP 180..No problem...But used ekstra 100v caps.

[MarkF]

I think for 8s I would use the 800 or 745 KV motors. Your right about the data. I don't have my cooling jacket and I wanted to test 4 different props I had. I would do 2 laps and bring the boat in and do a prop change and go back out again. Lot of back and fourth. When I get a 7016 to try i will do 4 laps and bring it in and unplug and check data with my lap top. When I get my cooling jacket I will do a full race with mill lap and even 1 penalty lap to see how many Mahs are used. Even after all the testing of props that I had, I did 9 or 10 laps total and my packs are at 3.83. So this tells me a little bigger prop is going to work fine for run time on race day.

Mark

[urbs00007]

arien 51

I think for 8s I would use the 800 or 745 KV motors. Your right about the data. I don't have my cooling jacket and I wanted to test 4 different props I had. I would do 2 laps and bring the boat in and do a prop change and go back out again. Lot of back and fourth. When I get a 7016 to try i will do 4 laps and bring it in and unplug and check data with my lap top. When I get my cooling jacket I will do a full race with mill lap and even 1 penalty lap to see how many Mahs are used. Even after all the testing of props that I had, I did 9 or 10 laps total and my packs are at 3.83. So this tells me a little bigger prop is going to work fine for run time on race day.

Mark

mark, I have a castle 240 esc rated to 8-s. I want my electric rigger to run with the gas riggers. would i be better off running 10-s with another esc or the castle 240 with 8-s ? thanks

[MarkF]

I think you can run with gas riggers with 8 or 10s. But I prefer 10s so I have extra power to run their props they like. You can do it with smaller props at higher rpm as well. Both will work but remember gas riggers are hitting 80 mph down the straits and it's going to be harder to do on 8s.

Mark

[urbs00007]

ariane 51

I think you can run with gas riggers with 8 or 10s. But I prefer 10s so I have extra power to run their props they like. You can do it with smaller props at higher rpm as well. Both will work but remember gas riggers are hitting 80 mph down the straits and it's going to be harder to do on 8s.

Mark

yeah mark, i agree. been following flier 400 amp 16-s esc thread. someone bought 2 of them. testing to begin soon. i dont like the way swordfish handles quality control issues. was going to try them, but they have problems, mainly with the water lines being pinched inside the esc.

[MarkF]

My 300 swordfish has been bullet proof. I used it in my 10s mono for saw events. I have grenade 3 motors during saw use and it still works fine. I guess I got lucky and got a good one.
I think flier has worked out some bugs so I believe they will be better now. Some of the airplane guys have started using them and say they are working fine up to 18s but they don't load the esc like we do so testing by boaters is needed.

Mark

[MarkF]

Well i got some testing done and I think the motor is a winner. I have tried a 6516 and a variety of 7016 prop shop props, and the motor swings the props with no problems. The 7016 is close to 70 mph and the boat works great with that prop.

Mark

[urbs00007]

Well i got some testing done and I think the motor is a winner. I have tried a 6516 and a variety of 7016 prop shop props, and the motor swings the props with no problems. The 7016 is close to 70 mph and the boat works great with that prop.

Mark

2 questions mark. first, 7016, diameter and pitch. second, length of run. thanks

[MarkF]

70 is the diameter but after working the props they very from 66 to 68mm in diameter. Pitch range from 3.7 to 4.5
Runs were only 3 laps at a time because I don't have water jacket on motor.

Mark

[runzwithsizorz]

70 is the diameter but after working the props they very from 66 to 68mm in diameter. Pitch range from 3.7 to 4.5
Runs were only 3 laps at a time because I don't have water jacket on motor.

Mark

Hi Mark, looks like you and I are in the same boat. Finally got my motor, (5670 1180kv for a big Sniper), from TP-USA after 8 weeks, but was informed the jacket won't arrive for another 2 weeks, that's 10 weeks! (sigh).
On the bright side, I have other projects, and toys. A word to the wise, if you order something from them, and it's not in their inventory, and they tell you it will take 2,or 3 weeks, well, ------------