martin2

i have a foamy 3dx. ive burned 2 motors up in it. i,m using a thunder power 1320ma li-po. fma super 30 auto cell detect esc. futaba fp-r127df rec. hitec hs-81mg servos. gws eps 350(dx) 6.60:1 motor. can someone tell me what i,m doooooing. thanks[]

RDespins

The GWS 350Cs cant hold up to 3S lipos. move on to brushless motors.

Peter Khor

My Feedback: (4)

* If possible I would change out to smaller servos (10g or less) an RX.

* Couple of us run 3s TP2100 on 3DX with 12x6 prop, get about 20 flights or more b4 motor burns out. 15-20min flying, hovers, lots of throttle management.

* Prop down to 11x4.7, it will lower the amp draw.

martin2

thanks guy,s i,ll give your ideas a try.

Uncas

My Feedback: (1)

what size prop are you using?

martin2

i,m using a ep 1260 prop

sierra gold

How did everyone know from this post he was using 3S? Are you using 3S or 2S? If 3S, that's probably the reason for the "early" demise of the 350. 2S would provide longer motor life, but less zip. An EPS 400C will stand up longer on a 3S, but isn't much more powerful then the 350 when you factor in the extra weight.

Sierra Gold

whstlngdeath

My Feedback: (15)

You asked and you answered yourself in the same post. About the only way he could be burning out motors that quick is if he were using 3S li-po's.

Jesse

halfmoon129

yo,

I have a 300 motor, an ICS 100 ESC, and a 8.4v 730 mah battery. Should I use a 1080 propeller or will it pull too many amps.? People say I should try a 9070, should I? If I want more thrust than should I use a 1080 but get a better ESC to handle the amps? Will the motor burn out soon with a 8.4v? I NEED HELP!!!!!! AAAAAAAHHHHHHHHHHH!!!!!!!

loading

You won't be pulling too many amps. I flew the same setup with no problem for quite a while. If you pull your battery pack out and its to hot to hold, you are pulling to many amps. With this setup it will be quite warm. If you want everything to last longer, go with the 9070. Things will still heat up, just not as bad. Its more a matter of choice. The weakest link in the power system you have is your battery pack. You don't really need to worry about frying your motor, because the 730mah pack doesn't have enough power to do it. So I would say, just check the pack after flight. If its too hot, then go with the smaller prop.

halfmoon129

Thanks alot, you and mr. kirsch are my new best online friends

budrodis

to anyone out there, the gws motor in the e- starter, what is that? i got a 370 or a 350 and it is a lot faster, i use a 7.4v 1500mah batteyr . I want to have more punch, but without going brushless. I dont want to go brushless yet , and if i us e a 3cell , which prop would make the engine last longer? how many flights? HELP I AM DESPERATE!!

halfmoon129

G-UNIT!

zagibond

I really don't know how they do it.
I just burned up another 350, running 3S 1500 Lipo, 1147 prop and really gentle on the throttle. My 3DX weighs 13 ounces, but I am still learning to hover so I am not running much WOT.
I ran a motor in, in a glass of water last night to see it that helps (I am skeptical).
I really, really don't want to go brushless.

halfmoon129

who does?

sierra gold

How about upgrading to an EPS 400C? It adds about 1 oz., but it is more durable than the 350 and will take 3S Lipos with no problem. I have run one on my Slow Stick for 25-30 flights - 5.28 GB, 12x8 HD prop.

Sierra Gold

zagibond

Maybe. I have one on my slow stick that i could try. My Lipo might not like the current draw though.

sierra gold

Your're probably right, I'm running 3S TP2100 packs.

Sierra Gold

zagibond

I think the have the same current capacity as the Kokam 1500 at 8C?

sierra gold

Actually the TP2100 are rated 6C, which is about 12 amps.(Depending on which Web site you read.) I had forgotten that the Kokams were 8C and therefore will take 12 amps also. I mistakenly thought the Kokams were also 6C and therefore only 9 amps.

The GWS EPS400 on a 5.28 gear box only pulls 8 amps off the 3S spinning a 12x8 HD prop. Shouldn't be a problem on Kokams either.

Sierra Gold

zagibond

Great, I have one that I will try this weekend.
Thanks.

halfmoon129

Escucho ¡G-UNIT!

srxripper

My Feedback: (1)

has any body used the ACRO 280 BB for the gws 350 gearbox? i heard its an rebuildable motor and its a perfect fit for the gearbox!
its a 6v motor and I'll be using the 5.3.1 ratio w thunder power 3cell 1320 pack
i ordered one, i hope it holds up better than the stock gws motor

scottm

I want to hear how that works out. Can you post a link to that motor?