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Old Aug 22, 2012, 05:27 PM
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Originally Posted by tripleup05 View Post
Over on the Adrenaline Rush thead (http://www.rcgroups.com/forums/showthread.php?t=380270) we run the 3000kv version on our little hotliners. Most use a 4.75x4.75 prop with a 800mah 3S. It makes for a killer combination! It draws around 20amps, and I don't know if there has been a motor failure yet. I'm not sure why Hobby King specs it so low, but it can take some abuse!
Thanks Man... Thats what I want to hear. I have 3 3s 800mah batteries. Just don't want to cook it right after getting it.

I love this hobby!!!!

Nightstone
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Old Aug 22, 2012, 05:44 PM
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Nightstone

I hope those 800mAh batteries are rated at least 25C, if Slim's 20 A draw is correct.

Do you use a Wattmeter?

Safety First

Joe
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Old Aug 22, 2012, 07:10 PM
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Originally Posted by Nightstone View Post
Thanks Man... Thats what I want to hear. I have 3 3s 800mah batteries. Just don't want to cook it right after getting it.

I love this hobby!!!!

Nightstone
I plan on making a 1/2 or 3/4 scale super ez and putting the 3000kv motor on that too. Make sure your batteries are well secured. I lost my last 2 1000mah 3s batteries pulling Gs.
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Old Aug 22, 2012, 07:10 PM
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Originally Posted by DuPageJoe View Post
Nightstone

I hope those 800mAh batteries are rated at least 25C, if Slim's 20 A draw is correct.

Do you use a Wattmeter?

Safety First

Joe
They are rated 20-30c so should be okay if I don't go WOT The whole flight.

Nightstone
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Old Aug 22, 2012, 07:11 PM
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Al I've been thinking these would be fun for combat. Maybe streamers or just trying to bash the other guy out of the air?
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Old Aug 22, 2012, 08:12 PM
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Al I've been thinking these would be fun for combat. Maybe streamers or just trying to bash the other guy out of the air?
Let's do it! I think other Tim would go for it , he loves using his SE for just screwing around - flying under goals , spiraling down until it almost hits the ground then pulling out of it , etc. The SE design will probably save the electronics most of the time if it goes down hard .
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Old Aug 22, 2012, 09:48 PM
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Originally Posted by DuPageJoe View Post
Nightstone

I hope those 800mAh batteries are rated at least 25C, if Slim's 20 A draw is correct.

Do you use a Wattmeter?

Safety First

Joe
On the Adrenaline Rush thread, Hance was originally recommending the Turnigy Nano-Tech 460mah 25C-40C for the 3000kv Blue Wonder/Turnigy/Hextronic (whatever you want to call it). They weren't holding up that well for those who flew often. When Hobbyking released the 850mah 40C (http://www.hobbyking.com/hobbyking/s...arehouse_.html) most went to that battery, and it has worked out great.
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Old Aug 22, 2012, 09:56 PM
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Quick and dirty with supplies on hand. 3000 kv version of blue wonder motor. 4.75x4.75 prop. Took about 3 hours with a few beer breaks. Maiden tomorrow AM.
Is that a full size SE, Slim? I have cut mine out and put packing tape over it. Now all I have to do is assemble the sucker. I just can't see the little 4.75x4.75 driving this thing, though!
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Old Aug 23, 2012, 02:02 AM
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Originally Posted by tripleup05 View Post
Over on the Adrenaline Rush thread (http://www.rcgroups.com/forums/showthread.php?t=380270) we run the 3000kv version on our little hotliners. Most use a 4.75x4.75 prop with a 800mah 3S 40C. It makes for a killer combination! It draws around 20amps, and other than crash damage, I haven't read about a single motor failing. Not that it hasn't (or couldn't) happen, but I haven't read any complaints, and many of us are running that setup. I'm not sure why Hobby King specs it so low, but it can take some abuse!
I looked at some of those videos in that thread. Holy cow do those things move. You can barely see the thing flying. Cool link man.

Nightstone
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Old Aug 23, 2012, 12:39 PM
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Has anyone used a 1500kv blue wonder yet? I'd think that would be a good motor for a full size EZ with a 7x6 APC style prop on 3 cells. if not not built too heavy
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Old Aug 23, 2012, 04:17 PM
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I was on hobby king today looking at my AX-2306N-2000 motor. There is not much info on it. When at the bottom of the page I see " Click here to see all reviews". Duh... I realize now that alot of these posted specs are not all together fully correct. Folks in there were running 7x6 props on this motor. Big difference from my 6x3. So I went out with a 6x5 prop. Big difference. Motor was totally cool.
Battery was hot though.

How hot is too hot for a battery? These were 3s 800mah 20-30c.

This is making me realize I need some higher C batteries prior to making a rocket with that 3000 kv motor. That and a watt meter.

Nightstone
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Old Aug 23, 2012, 05:25 PM
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Weight of real DollarTree foam board

Back on Post #126, I described the start of my Super Easy build with some foam board from my basement stock which was marked Elmer's and weighed about 230 grams per 20 X 30 inch sheet (1.95 ounces/sq ft) with the paper on.

http://www.rcgroups.com/forums/showp...&postcount=126

Today, I found my closest Dollar Tree, and they had foam board from R.L. Adams Plastics of Wyoming MI that weighed 114 grams per sheet (0.97 ounces/ sq ft) with the paper on. Considering that the full size Super Easy uses a bit over 5 square feet of foam board I could have saved about 5 ounces by picking the right source.

Your scale is a good friend, you just got to use it.

Joe
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Old Aug 23, 2012, 05:48 PM
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LiPo Battery Temperature

Nightstone
According to the LiPo safety guidelines in my Venom Charger manual, the maximum discharge temperature is 140 F or 60 C. That's fairly hot to the touch.

You need to let the battery cool befire re-charging, though, because the maximum charging temperature is 110 F or 43 C.

You might find similar guidelines from a battery supplier like Thunderpower.

Joe
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Old Aug 23, 2012, 06:00 PM
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Quote:
Originally Posted by Nightstone View Post
I was on hobby king today looking at my AX-2306N-2000 motor. There is not much info on it. When at the bottom of the page I see " Click here to see all reviews". Duh... I realize now that alot of these posted specs are not all together fully correct. Folks in there were running 7x6 props on this motor. Big difference from my 6x3. So I went out with a 6x5 prop. Big difference. Motor was totally cool.
Battery was hot though.

How hot is too hot for a battery? These were 3s 800mah 20-30c.

This is making me realize I need some higher C batteries prior to making a rocket with that 3000 kv motor. That and a watt meter.

Nightstone
Hobbyking USA has these high c batteries http://www.hobbyking.com/hobbyking/s...dProduct=24210 and Banana Hobby has these http://search.bananahobby.com/psearc...hQueryId=82416
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Old Aug 24, 2012, 01:53 AM
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DSE Version 2 built and ready for maiden tomorrow. Will get a wife vid. Went with 9 Gram servos. Lots of color lol. Using that motor that was on the first one with a 7x6 prop hope its not too much for it. its a 2000kv motor. It should be quick ( At least at my skill level ). Made this plane Flat with no dihedral. Added a spar. Large KF on top. Small KF underneath.

Should be interesting...

Nightstone
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