HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Jan 08, 2013, 03:33 AM
P31
Registered User
United States, WA, Spanaway
Joined Dec 2011
598 Posts
Discussion
Miss Bardhl U-40 1967

I ordered the framing kit last week and I'm trying to figure out which esc to get. which ESC would be a good starter for me. Is the Turnegy any good they don't seem to be expensive. and do I have to use Lipo's?
Gary
P31 is offline Find More Posts by P31
Reply With Quote
Sign up now
to remove ads between posts
Old Jan 08, 2013, 06:46 AM
Registered User
wparsons's Avatar
Canada, ON, Whitby
Joined Aug 2008
8,902 Posts
What size is the hull? What motor do you plan to run? How many cells? How fast do you want it to be?
wparsons is offline Find More Posts by wparsons
Reply With Quote
Old Jan 08, 2013, 03:38 PM
P31
Registered User
United States, WA, Spanaway
Joined Dec 2011
598 Posts
It's the Newman 1/8th scale, the motor I picked up on line, its a feigao KV1668.
I just want it to plane well no racing just for fun and scale look
Gary
P31 is offline Find More Posts by P31
Reply With Quote
Old Jan 08, 2013, 04:00 PM
Registered User
wparsons's Avatar
Canada, ON, Whitby
Joined Aug 2008
8,902 Posts
I would get the Turnigy 120a ESC to give yourself some head room.

http://www.hobbyking.com/hobbyking/s..._Boat_ESC.html
wparsons is offline Find More Posts by wparsons
Reply With Quote
Old Jan 08, 2013, 04:25 PM
P31
Registered User
United States, WA, Spanaway
Joined Dec 2011
598 Posts
That looks good, what is this programming they talk about. I have built scale boats for some 30 yrs and have always used the brushed motors so this is going to be all new to me. I don't like theses Lipo Batteries, to many bad story's. Do i have to use them. Thanks for your help.
Gary
P31 is offline Find More Posts by P31
Reply With Quote
Old Jan 08, 2013, 05:42 PM
Redneck Injuneer
bill34207's Avatar
Bradenton, Florida
Joined Aug 2007
6,366 Posts
I smell smoke in your future trying to push a 1/8 scale hydro with a 1668 kv motor and 120 amp esc. 1/8 scalers are normally 40" plus and will be far too heavy & draggy for that setup.
bill34207 is online now Find More Posts by bill34207
RCG Plus Member
Old Jan 08, 2013, 06:47 PM
P31
Registered User
United States, WA, Spanaway
Joined Dec 2011
598 Posts
Quote:
Originally Posted by bill34207 View Post
I smell smoke in your future trying to push a 1/8 scale hydro with a 1668 kv motor and 120 amp esc. 1/8 scalers are normally 40" plus and will be far too heavy & draggy for that setup.
Well, dont stop there. thats why I'm asking.
gary
P31 is offline Find More Posts by P31
Reply With Quote
Old Jan 08, 2013, 07:56 PM
Registered User
wparsons's Avatar
Canada, ON, Whitby
Joined Aug 2008
8,902 Posts
Woah, I read that as 1/12th scale somehow... forget what I said about a 120a ESC. You'll want a much bigger motor and ESC.

As for lipos, if you want the hydro to get on plane you don't really have any other options. It'll weigh a TON with enough nicads/nimhs to get it going.
wparsons is offline Find More Posts by wparsons
Reply With Quote
Old Jan 09, 2013, 02:33 AM
P31
Registered User
United States, WA, Spanaway
Joined Dec 2011
598 Posts
Well I got alot comments what I should not do and what would happen if do, so I guess I had better ask someone who know's. Thanks for all your help Guy's It was real informative.
Gary
P31 is offline Find More Posts by P31
Reply With Quote
Old Jan 09, 2013, 05:21 AM
Redneck Injuneer
bill34207's Avatar
Bradenton, Florida
Joined Aug 2007
6,366 Posts
Quote:
Originally Posted by pamela31 View Post
Well I got alot comments what I should not do and what would happen if do, so I guess I had better ask someone who know's. Thanks for all your help Guy's It was real informative.
Gary
Most people get disheartened when they find out what it costs to make a big boat run, Gary.
A $50 motor and esc just won't work for an electric that size.
You really need something in a 700-800 kv range on the motor capable of about 4000 watts. With the lower kv you also need a high voltage esc that will handle 200+ amps and 10s lipo. You can expect around $600 in motor and esc for a "living" setup. About another $150 for a pair of 5000 ma 5s packs.

I'll be happy to add some links for a working setup if you won't fall over from sticker shock.
bill34207 is online now Find More Posts by bill34207
RCG Plus Member
Old Jan 09, 2013, 11:43 AM
P31
Registered User
United States, WA, Spanaway
Joined Dec 2011
598 Posts
Quote:
Originally Posted by bill34207 View Post
Most people get disheartened when they find out what it costs to make a big boat run, Gary.
A $50 motor and esc just won't work for an electric that size.
You really need something in a 700-800 kv range on the motor capable of about 4000 watts. With the lower kv you also need a high voltage esc that will handle 200+ amps and 10s lipo. You can expect around $600 in motor and esc for a "living" setup. About another $150 for a pair of 5000 ma 5s packs.

I'll be happy to add some links for a working setup if you won't fall over from sticker shock.
Thank you sir, I have no problem with cost of things, I have more Boats than most. they are all scale, Mostly Chris Craft Boats. I guess I dont understand the KV part, is it the higher the KV,the more power, because you say I need 700-800 when I have 1680 or somewhere in there. The Boat I,m looking at is about 36" long, Newton plans. and the say a U-1 set up but I cant find out what a U-1 set up is. Thanks for letting me bend your ear.
Gary
P31 is offline Find More Posts by P31
Reply With Quote
Old Jan 09, 2013, 11:54 AM
Registered User
cyberhoops's Avatar
Seattle
Joined Feb 2006
977 Posts
At 36" I would think we are talking 1/10th scale instead of 1/8th scale ... and in that case your 1600kv motor and a Turnigy 120 should be ok. I have a 1/10th scale boats from ML Boatworks which is based off Newton plans, using either Proboat 1500kv or Proboat Stilletto 1600kv motors on 4S using the Turnigy 120 controller.

If you are going with Newton plans, you might want to check out ML Boatworks for a framing kit - it will save a lot of cutting parts and time spent getting things to fit.
cyberhoops is offline Find More Posts by cyberhoops
Reply With Quote
Old Jan 09, 2013, 12:04 PM
Redneck Injuneer
bill34207's Avatar
Bradenton, Florida
Joined Aug 2007
6,366 Posts
Cyberhoops has already stated that the motor esc would work and in a 1/10 scale I agree.

Just to clarify, when pushing a large hull you want to go to a lower kv motor to reduce amp draw. You can accomplish power (watts) in two ways. High kv at a lower voltage which pulls tons of amps and makes lots of heat. Or a low kv motor at higher voltage to produce the same wattage with less amp draw and heat.

On the U1 power set up you were referring to, chances are it was meant to be a UL-1 power set that's found in the Aquacraft UL-1 hydro. That one is a 2030 (I think) kv motor and only a 60 amp esc.
bill34207 is online now Find More Posts by bill34207
RCG Plus Member
Old Jan 09, 2013, 12:29 PM
P31
Registered User
United States, WA, Spanaway
Joined Dec 2011
598 Posts
Quote:
Originally Posted by cyberhoops View Post
At 36" I would think we are talking 1/10th scale instead of 1/8th scale ... and in that case your 1600kv motor and a Turnigy 120 should be ok. I have a 1/10th scale boats from ML Boatworks which is based off Newton plans, using either Proboat 1500kv or Proboat Stilletto 1600kv motors on 4S using the Turnigy 120 controller.

If you are going with Newton plans, you might want to check out ML Boatworks for a framing kit - it will save a lot of cutting parts and time spent getting things to fit.
Yes I have already ordered the frame kit from them, and I have the plans. So when I get to that part where I install the motor and ESC I will Bend your ear some more, thanks again you have been very helpful.
Gary
P31 is offline Find More Posts by P31
Reply With Quote
Old Jan 10, 2013, 09:24 AM
Registered User
wparsons's Avatar
Canada, ON, Whitby
Joined Aug 2008
8,902 Posts
kv is rpm/volt so a higher kv isn't more power, just more RPM. Wattage is power, which is volts * amps.
wparsons is offline Find More Posts by wparsons
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Sold AquaCraft U-18 Miss Vegas Deuce viper1216 Boats (FS/W) 1 May 24, 2014 10:59 PM
Sold T-Boat ,1967 Miss Budweiser (not finished) Dyno Don Boats (FS/W) 9 Sep 08, 2012 09:10 PM
U.S. AirCore 40 Trainer Kit .40-.50,64" AJsToyz Non R/C Items (FS/W) 1 Aug 30, 2012 11:03 AM
Sold AquaCraft U-18 Miss Vegas Deuce viper1216 Boats (FS/W) 0 Feb 24, 2012 12:15 PM
Discussion Miss Budwieser Vs Miss Vegas U 18 wpk1941 Racing Boats - Internal Combustion 3 Sep 24, 2007 12:26 AM