RE: *****NEW ESKY e550 sized heli soon to release, Talk, share, wait*****

RE: *****NEW ESKY e550 sized heli soon to release, Talk, share, wait*****
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RE: *****NEW ESKY e550 sized heli soon to release, T... - 3/21/2008 5:41:36 PM

babyhuey

Posts: 571
Joined: 9/3/2007
From: St. James, MO, USA
Status: offline

Yeah i want to get something big enough to fly in some wind. The 450 size gets grounded too much for me but I don't want to have to invest a fortune in batteries either.
Will the esmart fly on two three cell 2200 mahs?

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Post #: 76

RE: *****NEW ESKY e550 sized heli soon to release, ... - 3/21/2008 7:57:55 PM

Phelansa

Posts: 1422
Joined: 7/9/2006
From: PretoriaGauteng, SOUTH AFRICA
Status: offline

They recommend an 6S 5000mah. So I don't think the 3S 2200mah's in series will be enough.

But then.... I am only guessing. No actual experience to back my opinion with. Perhaps one of the others here will be able to give better advice?

_____________________________

DF03-MM 4600, RS4 MT MM4600, Mayhem ST. Lama V4, HB Cool, BeltCp, TRex 450 and next...... ESmart!

(in reply to babyhuey)

Post #: 77

RE: *****NEW ESKY e550 sized heli soon to release, ... - 3/21/2008 8:19:10 PM

Druss

Posts: 4175
Joined: 8/10/2007
From: Edmonton, AB, CANADA
Status: offline

you could fly on 2 3S 2200mah batteries but your flight times would be pretty short (less than 4 minutes). that method is good for the 500 or 550 size but not so much for the 600

(in reply to Phelansa)

Post #: 78

RE: *****NEW ESKY e550 sized heli soon to release, ... - 3/21/2008 8:36:09 PM

flyinsolo11

Posts: 638
Joined: 11/28/2007
From: Anchorage, AK, USA
Status: offline

So are there two helis- one an esmart 600 and the other a 900 esky?

Thanks

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Flying is the art of throwing yourself at the ground... and missing.

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Post #: 79

RE: *****NEW ESKY e550 sized heli soon to release, ... - 3/21/2008 9:03:58 PM

Phelansa

Posts: 1422
Joined: 7/9/2006
From: PretoriaGauteng, SOUTH AFRICA
Status: offline

There are 2 Heli's. Both made by ESky. One called the E-Smart, the other the 900 3D.

I am not as certain as Druss is about the 2 x 2200mah batteries working. It would depend on the C rating. Keep in mind that the 600 class helis all run somewhere around 80Amps. That means those 2200 batteries would have to be rated around 40C to be able to supply the necessary current. Those little packs are going to be running incredibly hot!

Just something to keep in mind. But again, this is all purely theoretical on my part. Based solely on experience with smaller helis and cars running high power Brushless Systems.

_____________________________

DF03-MM 4600, RS4 MT MM4600, Mayhem ST. Lama V4, HB Cool, BeltCp, TRex 450 and next...... ESmart!

(in reply to flyinsolo11)

Post #: 80

RE: *****NEW ESKY e550 sized heli soon to release, ... - 3/21/2008 9:09:07 PM

crashinbash

Posts: 208
Joined: 5/3/2005
From: VictoriaB.C., CANADA
Status: offline

Yes there are two. The E-smart ang G-smart have been out for over a year now. people are just talking about it in this forum as a reference and comparison to the upcoming 900.
If some of you read the first post in the forum the answer is no, this is not a bigger version than the E-smart. It is a 500 sized helicopter and the name 900 is derived from the diameter of the main rotor blades.

E-smart will run on 5s5000mah 15c and I have seen it do invert and loops on this battery. Not enough power for piro flips, or tic tocs. If you can keep the weight down some people have actually tried using 4s HV packs for sport flying and hovering.

The E-smart is expensive? BWAA HA HA HA...
T-rex 600 - $559.00
T-rex 600 Nitro - $549.00
Thunder tiger raptor E620 - $449.00
Quick Japan ep-8v2 or 16 - $329.00
Guai Hurricane 550 (no elect) - $249.00
HDX 500se (no elect) - $349.00
E-sky E-smart (with motor) - $199.00!

Just me or is the one at the bottom of the rung wayy less money than all the others? lol. You can have a 600 that does hard 3d ready to fly for just over $500 dollars if you nit and pick your electronics. I'm sure the price of the 900 will drop once it's released. Alot of retailers don't have a valid price point or profit margin idea until the products out. Even then, this kit will still be cheaper than a few other 500's out there.

I like 500 simply for the 4s lipo and still large enough to compare to a .30 gasser. Insane power-low price point-less dangerous-can fly in way more places.

cheers

_____________________________

Heli's........ It is your destiny..... and perhaps your demise.
http://www.geocities.com/the_b_i_g_01/BIG_RC.html

(in reply to flyinsolo11)

Post #: 81

RE: *****NEW ESKY e550 sized heli soon to release, ... - 3/21/2008 9:11:25 PM

crashinbash

Posts: 208
Joined: 5/3/2005
From: VictoriaB.C., CANADA
Status: offline

The main motor only draws around 54amps on average compared to other 600's. The C rating doesn't need to be that high. It's more about the MAH for flight time with this heli.
20c with any battery over 4000mah is fine.

_____________________________

Heli's........ It is your destiny..... and perhaps your demise.
http://www.geocities.com/the_b_i_g_01/BIG_RC.html

(in reply to crashinbash)

Post #: 82

RE: *****NEW ESKY e550 sized heli soon to release, ... - 3/21/2008 9:33:24 PM

Phelansa

Posts: 1422
Joined: 7/9/2006
From: PretoriaGauteng, SOUTH AFRICA
Status: offline

quote:

ORIGINAL: crashinbash
20c with any battery over 4000mah is fine.

Well, there you have it then

Edit: Ummm, 20C 4000mah will have the same Continuous Amp rating as a 2000mah at 40C. So we are still talking about the same spec battery?

I understand the mah rating argument determining the flight time. What I am trying to explain is that the 2200mah batteries even if rated at 20C will just not supply the Power (W=VxI) that the motor will demand. Even when run in a serial arrangement. You will still only have a pack capable of delivering 44A Continuous. 25C packs will deliver 55A, but as you well know running the packs at so close to they're maximum output will not only damage the packs but also impact negatively on the performance of the Heli. If you have to run the 2200mah packs then at least make sure that they are rated 30C or more (66A).

I hope that makes my previous post clearer?

< Message edited by Phelansa -- 3/21/2008 9:56:07 PM >

_____________________________

DF03-MM 4600, RS4 MT MM4600, Mayhem ST. Lama V4, HB Cool, BeltCp, TRex 450 and next...... ESmart!

(in reply to crashinbash)

Post #: 83

RE: *****NEW ESKY e550 sized heli soon to release, ... - 3/21/2008 10:09:53 PM

nuttcaze

Posts: 1549
Joined: 1/3/2008
From: Johnson City, NY, USA
Status: offline

I just got my Belt CP today from Ka-Planes

, but so start with the HBFP (300 size) the HBK II (400 size) is a little bigger but not much, then the Belt CP (450 size) is only a little bigger then the HBK II (400 size), so a 500 size heli isn't gonna be that much bigger then the Belt CP (450 size), BUT there is a HUGE

difference betweeen the Belt CP (450 size) and the E-Smart (600 size), nope no 900 for me

(in reply to Phelansa)

Post #: 84

RE: *****NEW ESKY e550 sized heli soon to release, ... - 3/21/2008 10:30:15 PM

Phelansa

Posts: 1422
Joined: 7/9/2006
From: PretoriaGauteng, SOUTH AFRICA
Status: offline

Lol,

Just keep in mind, the rotor diameter for the ESmart is 1185mm, the 900 is 959mm. So not all that much smaller. The BeltCP is only 680mm.

Using the Rotor Diameters, the BeltCP is 29% smaller than the 900, and the 900 is 19% smaller than the ESmart.

So it looks like you are going to need that 900 after all. Just to fill that gap in the scaling of your helis off course.

_____________________________

DF03-MM 4600, RS4 MT MM4600, Mayhem ST. Lama V4, HB Cool, BeltCp, TRex 450 and next...... ESmart!

(in reply to nuttcaze)

Post #: 85

RE: *****NEW ESKY e550 sized heli soon to release, ... - 3/21/2008 10:30:19 PM

crashinbash

Posts: 208
Joined: 5/3/2005
From: VictoriaB.C., CANADA
Status: offline

I am saying that at even 18.5v (5s pack) you get a good amount of power using a quality battery like thunder power, evo, kong power lipo's.

the higher the MAH of the battery the higher Amperage you can push it to. If you had a 5000mah battery at 15c it would produce more amps than that of a 4000mah battery at 15c. 5s 5000mah with 15c produce up to 75amp's and have more than enough power to throw this heli around. Esky states that the maximum continuous current for the motor is 50amps and the max burst it could possibly put out is 58amps so even if the batteries aren't quite accurate in they're C rating they would still be within reasonable range without damaging the batteries.

I have seen the stock motor run at 15 volts and as long as the battery had high enough C rating for the amps required, It still flew and hovered around. I can anuderstand most people will want to do more agressive flying and even 3d then i'd jump to 22 or even 25 volts. I'm just saying at even 15 volts it will fly.

I'm agrueing that 2200mah batteries are simply not worth it. At 40c we are talking about the same specs but the flight times would be soo short what would be the point.

_____________________________

Heli's........ It is your destiny..... and perhaps your demise.
http://www.geocities.com/the_b_i_g_01/BIG_RC.html

(in reply to nuttcaze)

Post #: 86

RE: *****NEW ESKY e550 sized heli soon to release, ... - 3/21/2008 10:44:52 PM

Phelansa

Posts: 1422
Joined: 7/9/2006
From: PretoriaGauteng, SOUTH AFRICA
Status: offline

Crash, we are saying the same thing in different words. I cannot possibly agree with you more about the "Quality" of the packs one uses. I for one only use "Enerland" cells. Enerlands are also fitter to ThunderPower, Hyperion, TrackPower.... etc etc.

As this is an electrical motor we are talking about here, the key word here is Power. The batteries ability to deliver power is a derived from 2 things. Its mah rating, and its C Rating. So yes, the one can substitute for the other. Make no mistake though. It takes BOTH to specify the correct battery for the application.

Again, Power is the operative word here (W=VxI). When you lower the voltage the motor will consume more current to perform the same amount of work. The higher the voltage, the more efficient the motor. That is unfortunately a law of physics.

_____________________________

DF03-MM 4600, RS4 MT MM4600, Mayhem ST. Lama V4, HB Cool, BeltCp, TRex 450 and next...... ESmart!

(in reply to crashinbash)

Post #: 87

RE: *****NEW ESKY e550 sized heli soon to release, ... - 3/21/2008 11:30:51 PM

nuttcaze

Posts: 1549
Joined: 1/3/2008
From: Johnson City, NY, USA
Status: offline

quote:

ORIGINAL: Phelansa

Lol,

Just keep in mind, the rotor diameter for the ESmart is 1185mm, the 900 is 959mm. So not all that much smaller. The BeltCP is only 680mm.

Using the Rotor Diameters, the BeltCP is 29% smaller than the 900, and the 900 is 19% smaller than the ESmart.

So it looks like you are going to need that 900 after all. Just to fill that gap in the scaling of your helis off course.

Nah, I'm still not gonna pay $100 more for it, but if you look at the two helis in inches

E-Smart 600 -
Main rotor diameter - 1185mm or 46.7in
length - 1070mm or 42.1in

900 -
Main Rotor diameter - 959mm or 37.7 in
length - 845mm or 33.2in

even if its only 19%, 9 inches is a big difference

(in reply to Phelansa)

Post #: 88

RE: *****NEW ESKY e550 sized heli soon to release, ... - 3/21/2008 11:33:28 PM

homeunt

Posts: 972
Joined: 2/10/2008
From: Ectobicoke, ON, CANADA
Status: offline

any1 here have g-smart? I think they are esky nitro helis and I heard of a really good deal, like 200 for Gsmart arf, doesn't include trnasmitter, gyro, servo and receiver.

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This hobby is funny, if I got cash, I got no experience.
If i got experience, I see a giant hole on my wallet.

(in reply to nuttcaze)