UL1 test with Hydra 240/ 1515 1y

[scoota]

did some testing with a castle/ Neu 1515 2200kv & a hydra 240 . Running M 445 / M 447 / M645 & getting speeds ranging from 57 - 65 mph with no heat issues & a peek of 204 amps . i changed the water pick up to behind the prop & as u can see from the graph the temps were all low . This test was to sort out the cooling issues with stock water pick up. Cause Heat = loss of power & my speedy & motor were running way to HOT with the stock set up. Well with my UL1 anyway !!! The speed thing is just an added bonus ..... with the stock water pick up my Temps were double of what you see on the graph....

Temp 1 = Caps
Temp 2 = Esc
temp 3 = Motor

[Jeff Wohlt]

Very nice...with data to prove it! Surprised it stayed on the water.

[scoota]

Very nice...with data to prove it! Surprised it stayed on the water.

Cheers , yer at those speeds its a bit of a hand full , but on glass its fun !!!!! i will say one thing with the weight of that big motor & 6500mah packs over the front i dont have any problems with blow over at speed but it does dance a lot in choppy water & find my self backing off a lot .... the boat weighs 6.5 lbs or for metric people 2.7 kgs with this set up .... I have put an extra 5 coats of gel coat on the bottom of the hull to help with all the extra stresses of the bigger motor & speeds its doing , cause when i first put the 1515 in, it started cracking !!!!! on the under side ..

[scoota]

I have read a few times now about people having trouble with getting water tubing thru the hull , what i did was use 4 blanking gromets to insert in the 4 holes & pushed some copper tube thru them so changing the water tubing is a lot easier.

i used a piece of the same copper tube as a hole punch to get the right size hole in the gromets before inserting them into the hull !!

[Steven Vaccaro]

Just to keep things straight, am I correct in saying its a Castle 1515 2200kv?

[Steven Vaccaro]

Just to keep things straight, am I correct in saying its a Castle 1515 2200kv?

Oh, by the way nice job with all the data logging! Thanks

[Steven Vaccaro]

One other thing, was it a m465 or a m645?

[scoota]

yes a castle/ neu motor 2200kv ,Sorry typing error M645 & more data logging to be posted , that graph was with the M445 prop..... will edit the first post too keep things straight steve to be honest i have neu motors and thought id give the Castle/Neu motor a go and i think it performs just as as well as my Neu motors.. & i will be ordering some more of the castle/ neu motors off you soon for the 33 inch delta force hull im building at present

[scoota]

Oh can anyone give me a answer on why i poped the caps on the Hyrdra from the readings on the graph ?

[Steven Vaccaro]

yes a castle/ neu motor 2200kv ,Sorry typing error M645 & more data logging to be posted , that graph was with the M445 prop..... will edit the first post too keep things straight steve to be honest i have neu motors and thought id give the Castle/Neu motor a go and i think it performs just as as well as my Neu motors.. & i will be ordering some more of the castle/ neu motors off you soon for the 33 inch delta force hull im building at present

Thanks, I dont mean to be a pain in the butt with the exacts, just want to keep it straight for new guys that read this.

[Steven Vaccaro]

Oh can anyone give me a answer on why i poped the caps on the Hyrdra from the readings on the graph ?

I can never read the graphs with all the data on it when its posted as a picture. Can you tell us the voltage while at the highest current draw?

[detox]

Oh can anyone give me a answer on why i poped the caps on the Hyrdra from the readings on the graph ?

Too much stop and go driving, or not enough capacitors to help with large voltage drop (solder some extra in line...35v 1500pf), or not enough mah to guard against large voltage drop, or running system too close to LVC.

[detox]

I can never read the graphs with all the data on it when its posted as a picture. Can you tell us the voltage while at the highest current draw?

Top of graph sheet states 13.00 volts minimum. See RED line on chart. It appears ESC hit lowest of 13 volts getting on plane at start of run (lots of hard accelleration and 45mm prop killed it).

I once used a M440 prop with Hydra 120 esc, 1515 1y, in my UL-1 with 4s2p 3300mah lipos and esc lived surprisingly long, but it also died even while using extra caps

...

[Rumdog]

I agree! The Castle motors ROCK! I've used the 1518 and 1515 and love them. I just finished a twin sprintcat 40 with twin Castle/Neu 1515 1y's. First run timorrow, can't wait!

[Brushless55]

Awesome speeds out of this hull..