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Forum: Power Systems
06-18-2009, 06:14 PM
Replies: 64
Views: 17,957
Posted By ministeve2003

hmm... sounds like it's hitting the same/similar...

hmm... sounds like it's hitting the same/similar specs to the 800kv version... wonder if it got mis-labled

SK
Forum: Power Systems
06-18-2009, 05:22 PM
Replies: 64
Views: 17,957
Posted By ministeve2003

here's the specs for the GP's one... it looks...

here's the specs for the GP's one... it looks pretty close to the turnigy one, however it does say it allows for higher amps (prob not good though)

Can Diameter: 1.65" (42mm)
Can...
Forum: Power Systems
06-18-2009, 05:14 PM
Replies: 64
Views: 17,957
Posted By ministeve2003

LOL... and Here I though you were using a turnigy...

LOL... and Here I though you were using a turnigy 42-40-1000kv motor...LOL

I once used a 28mm inrunner of Great planes... and then bought a hxt 28mm of the same specs... and they were near...
Forum: Power Systems
06-18-2009, 06:15 AM
Replies: 64
Views: 17,957
Posted By ministeve2003

that looks like a 4cell motor... Kinda weak on 3...

that looks like a 4cell motor... Kinda weak on 3 cells prob prop higher....

here's a review I found helpful

Prop tests on fully charger 3 cell 2100mAh D9 lipo battery:



(or 11x5.5e...
Forum: Power Systems
04-15-2009, 07:41 PM
Replies: 64
Views: 17,957
Posted By ministeve2003

yea, funny how that is even when you have over...

yea, funny how that is even when you have over 2:1 thrust...LOL

SK
Forum: Power Systems
04-15-2009, 06:43 PM
Replies: 64
Views: 17,957
Posted By ministeve2003

10x10 and 12x6 should pull very similar amp...

10x10 and 12x6 should pull very similar amp results... you might want to be careful and check temps after 1-2minutes on your first trail with a 12x8...

if you look at this motor, I've tested the...
Forum: Power Systems
04-15-2009, 04:41 AM
Replies: 64
Views: 17,957
Posted By ministeve2003

all things being equal, would a 10" prop pulling...

all things being equal, would a 10" prop pulling say 500grams thrust, feel any different than a 9" prop with 500grams thrust... assuming you keep prop pitched for the same speed...?
Forum: Power Systems
04-15-2009, 12:22 AM
Replies: 64
Views: 17,957
Posted By ministeve2003

LOL, I see what I missed... I ment serial ....LOL...

LOL, I see what I missed... I ment serial ....LOL

SK
Forum: Power Systems
04-15-2009, 12:14 AM
Replies: 64
Views: 17,957
Posted By ministeve2003

making a Serial adaptor is easyier to use because...

making a Serial adaptor is easyier to use because you can take it off to balance charge it with the balance taps already on the packs.... I do this with some 2cell packs I run on a stryker for a...
Forum: Power Systems
04-15-2009, 12:08 AM
Replies: 64
Views: 17,957
Posted By ministeve2003

Am I missing something? here's a simplified...

Am I missing something? here's a simplified picture....

it shouldn't matter as long as the capacity and make are the same, and as long as you balance charge them and don't over discharge them.......
Forum: Power Systems
04-14-2009, 10:21 PM
Replies: 64
Views: 17,957
Posted By ministeve2003

do they have to be the same cell count? I'll have...

do they have to be the same cell count? I'll have to look at how they're wired....

SK
Forum: Power Systems
04-14-2009, 10:01 PM
Replies: 64
Views: 17,957
Posted By ministeve2003

your right about that... I've seen a few people...

your right about that... I've seen a few people add a cell without knowing they had to prop down... they smoked the motors in seconds...

SK
Forum: Power Systems
04-14-2009, 09:53 PM
Replies: 64
Views: 17,957
Posted By ministeve2003

I hear ya on that one... I don't like buying...

I hear ya on that one... I don't like buying extra dif size stuff If I don't absolutely need it.... and 1 fast speed run just for kicks, when you know you'll just put a dif prop and run the other...
Forum: Power Systems
04-14-2009, 09:31 PM
Replies: 64
Views: 17,957
Posted By ministeve2003

hopefully, the limit is at least what the esc is...

hopefully, the limit is at least what the esc is rated for...LOL

SK
Forum: Power Systems
04-14-2009, 09:29 PM
Replies: 64
Views: 17,957
Posted By ministeve2003

The 5cell should be similar weight to the 3cell...

The 5cell should be similar weight to the 3cell one... same watts, lower amps... same flight time...

for instance...
3cell 2150mah 45amps is 499 watts with 2.86 minutes of flight time.......
Forum: Power Systems
04-14-2009, 05:55 AM
Replies: 64
Views: 17,957
Posted By ministeve2003

I think that's what Dr. Kiwi Mentioned in another...

I think that's what Dr. Kiwi Mentioned in another post... it has to do with less heat... Less Heat = Better Efficency.... The hotter the motor gets, the worse the efficency is....

SK
Forum: Power Systems
04-14-2009, 02:31 AM
Replies: 64
Views: 17,957
Posted By ministeve2003

? I don't get what your trying to say Ron.... ...

? I don't get what your trying to say Ron....

Bex and I are talking about adding a cell and Proping Down to keep same watts... Obviousely the prop selection wouldn't stay the same...

SK
Forum: Power Systems
04-13-2009, 08:27 PM
Replies: 64
Views: 17,957
Posted By ministeve2003

here's a usefull site I found awhile back... this...

here's a usefull site I found awhile back... this guy posts some prop test for various motors... I'll give you some good info for using more cells...
...
Forum: Power Systems
04-13-2009, 08:21 PM
Replies: 64
Views: 17,957
Posted By ministeve2003

I'd say if you've ran that motor to 666watts on...

I'd say if you've ran that motor to 666watts on 4cell, your prob safe doing it on 5cell...

SK
Forum: Power Systems
04-13-2009, 08:20 PM
Replies: 64
Views: 17,957
Posted By ministeve2003

no, I actually noticed it had less heat, but If...

no, I actually noticed it had less heat, but If you push them too much passed the same watts, they burn the windings without getting very hot... I'm guessing too much voltage through them at once can...
Forum: Power Systems
04-13-2009, 07:06 PM
Replies: 64
Views: 17,957
Posted By ministeve2003

If your gonna risk it.... then do the same as I...

If your gonna risk it.... then do the same as I did in the post above yours... prop for the same watts as the 4cell, the amps will be down, so there will be less heat, and better efficency...

SK
Forum: Power Systems
12-07-2008, 11:40 PM
Replies: 64
Views: 17,957
Posted By ministeve2003

I did this test myself on this motor.... its only...

I did this test myself on this motor.... its only recommeded for 3cell.......
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