50" Hydro Build

[keithbradley]

Awesome dude. Freaking awesome. I wish you lived closer so we could run the big hogs together. I've never been a huge fan of teh little "bounce-all-over on top of the water" hydros, but that thing looks like a blast.
Well done. Glad there were no issues this time.

[Brushless55]

Very cool man!
makes me wana get a Gas Whip

[old guy]

if you are using a 270 my be try a 65X18/3 and 67X17/3 67X19/3 keep a eye on the temps but thoughs are gas props for that size boat if you can swing them you just went a lot faster if you like I can give you a link to guy in the U.S. that does up voodoo ones for $70 each got 2 new ones to day and they are nice props
Rick

[woodster]

Very nice! Looks like she's running great.. Can't wait to get mine all dialed in

[Make-a-Wake]

Thanks guys!

Keith, i like the big one's now too!! Probably gonna sell my 8s/Neu Elam. BTW, in my excitement, i had my GPS tucked safely in my pocket

woodster, what you got????

[woodster]

Thanks guys!

Keith, i like the big one's now too!! Probably gonna sell my 8s/Neu Elam. BTW, in my excitement, i had my GPS tucked safely in my pocket

woodster, what you got????

I picked up an Aeromarine miss Budweiser 1/8th scale. It's a nitro boat so I'm converting to brushless also. As soon as it arrives i'll post a build thread. Bought a Castle HV240 and a Neu 2215 motor. Gonna run on 10S 2P and see how she does. Sounds like a very similar boat build to yours and I'm hoping I get the same performance you got. Your boat looks great!

[Make-a-Wake]

Cool, cant wait for your build to start! I may try an Octura 470/3 or a Prather 275 next.........

Here's a buddy of mine's thread on his 1/8 Aeromarine Miller high life......there are vids scattered throughout

http://www.rcgroups.com/forums/showthread.php?t=1294231

Charging my packs for another go in the morning

[Make-a-Wake]

First set of batts just took 2400mah...........the run was 2 minutes on the nose................any calculations to come up with based on that info................amp draw etc..............??? The batts are 5000 40c's

[Make-a-Wake]

I'm eyeing this prop.........

http://cgi.ebay.co.uk/PROPELLER-6717-3-rc-model-boat-1-4-Zenoah-bal-sharp_W0QQitemZ120694103532QQcategoryZ140972QQcmdZViewItemQQ_trksidZp4340.m263QQ_trkparmsZalgo%3DDLSL%252BSIC%26its%3DI%26itu%3DUCI%252BMRU-220%252BIA%252BUA%252BFICS%252BUFI%252BDDSIC%26otn%3D8%26pmod%3D200582844105%252B200582844105%26po%3D%26ps%3D63%26clkid%3D7652356719237541497

[keithbradley]

First set of batts just took 2400mah...........the run was 2 minutes on the nose................any calculations to come up with based on that info................amp draw etc..............??? The batts are 5000 40c's

If you're running 2p thats 144A...
2/60 (minutes ran/minutes in an hour) = 30
2400x2 (2p) = 4800mah (4.8AH)

4.8 x 30 = 144A

[Make-a-Wake]

Nice formula!! So i got a fair amount of "room" left in the 2028/SF240 setup.........

144 amps x 33.3(9s nominal voltage) = 4795 watts............A little over 6 horse?

[Brushless55]

First set of batts just took 2400mah...........the run was 2 minutes on the nose................any calculations to come up with based on that info................amp draw etc..............??? The batts are 5000 40c's

easy tool for ya

http://offshoreelectrics.com/conversion.htm

[Make-a-Wake]

easy tool for ya
http://offshoreelectrics.com/conversion.htm

Sweet!

I can go with more prop then i guess.............what are any thoughts on the 3 blader i posted above?

[woodster]

I'm eyeing this prop.........

http://cgi.ebay.co.uk/PROPELLER-6717...56719237541497

I'm not even sure where to start with props? Any ideas?

[keithbradley]

Nice formula!! So i got a fair amount of "room" left in the 2028/SF240 setup.........

144 amps x 33.3(9s nominal voltage) = 4795 watts............A little over 6 horse?

Thats what you're drawing, obviously there is an efficiency issue to consider, some of that is used to keep your electronics nice and warm 1HP is 746 watts, but I always figure for every 1000watts I draw I make 1HP...I could be off though, I like to figure things on teh lower end in case the HP police come asking for proof...

Keep in mind that is an average too. There are surely highs and lows above and below that. How did everything do temp wise this time?