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Old Dec 19, 2010, 12:09 PM
iSlope
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Slovenia
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Another option is this motor, TR 28-30B 14A 1050Kv. Cheaper, lighter and still strong enough. I decided to buy it.
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Old Dec 19, 2010, 12:24 PM
Videography and stuff
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The kit arrives with a cheap 11X6 prop, which I suppose EVERYONE replaced with a better one, so why did y'all choose a set up for 11X6 prop?
Why not a 12" or 10" ?
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Old Dec 19, 2010, 12:54 PM
the answer 42 is
Switzerland, AG, Lenzburg
Joined Jan 2006
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Well I still use the original prop, but I am thinking to imporve it next week, with a 12x8. I checked my motor, esc, batttery combo with motocalc and I can go with either 12x8 or 13x7. Everything dependes in your combo.

The standard power unit gives me abour 9m/seg climb which is pretty decent for what I am using it for, height limited soaring

regards

EZ
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Old Dec 19, 2010, 02:21 PM
iSlope
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Slovenia
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Quote:
Originally Posted by shaprap View Post
The kit arrives with a cheap 11X6 prop, which I suppose EVERYONE replaced with a better one, so why did y'all choose a set up for 11X6 prop?
Why not a 12" or 10" ?
Who choose a 11x6 setup? I decided to go with the TR 28-30B 14A 1050Kv Brushless Outrunner which uses 10x6 prop which is the top prop for it. I always use Aeronaut props and this one is no exception. Because I am not looking for a hotliner and this bird certainly isn't why put too much power on it. 140 Watts is more than enough for Passer.
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Old Dec 19, 2010, 02:34 PM
the answer 42 is
Switzerland, AG, Lenzburg
Joined Jan 2006
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well everything depends on the actual Kv of your motor, I always test them for accuarcy and the select the prop that gives the best efficiency, a 10x6 prop works good for some motors and not so well for other, there in no rule of the thumb, you need to test bench

EZ
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Old Dec 19, 2010, 03:04 PM
iSlope
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@Edwinzea

Can you tell me what's the diameter of the spinner?

Thanks,
Gorazd
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Old Dec 19, 2010, 04:08 PM
the answer 42 is
Switzerland, AG, Lenzburg
Joined Jan 2006
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the standar is 3 cms, you have to check the distance between pins of your spiner. some are wider therefore giving extra lenght to the propeller

EZ
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Old Dec 20, 2010, 02:15 PM
iSlope
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Slovenia
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Just checked the whereabouts of my parcel and found out that the parcel left HK on 17th of January. This means that I will probably receive it after the holiday season.
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Old Dec 21, 2010, 06:32 PM
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What engine fits securely in HobbyKing SS 25A ESC?

I would use the original 11x6" prop and a 3S 1300mAh 25C lipo.
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Old Dec 22, 2010, 01:15 AM
the answer 42 is
Switzerland, AG, Lenzburg
Joined Jan 2006
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I would go for a 30A it is the minimun recomended, so if you go down to 25A you are risking a fried ESC, a LiPo fire and a lost plane

EZ
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Old Dec 22, 2010, 09:15 AM
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And if I use a 2S lipo battery with a 1100kv motor, how many grams of thrust would pull?

So I could use a lipo with more capacity.
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Old Dec 22, 2010, 10:58 AM
iSlope
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Slovenia
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Quote:
Originally Posted by serginho_la View Post
And if I use a 2S lipo battery with a 1100kv motor, how many grams of thrust would pull?

So I could use a lipo with more capacity.
For example if we take this motor:

Quote:
Originally Posted by Pisaneli View Post
Another option is this motor, TR 28-30B 14A 1050Kv. Cheaper, lighter and still strong enough. I decided to buy it.
Here is the test report
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Old Dec 22, 2010, 11:18 AM
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Pisaneli Thanks, now I'm in doubt between two options:

1 - Motor KD A22-20L Brushless Outrunner (http://www.hobbycity.com/hobbyking/s...2106&aff=64164)

2 - Motor Turnigy TR2830-1050 (http://www.hobbyking.com/hobbyking/s...idProduct=2112)

The two will be used with a 2S Lipo.

I prefer flight duration, has great thermal here, I would only use the engine to reach them.
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Old Dec 22, 2010, 11:24 AM
iSlope
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Slovenia
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Quote:
Originally Posted by serginho_la View Post
Pisaneli Thanks, now I'm in doubt between two options:

1 - Motor KD A22-20L Brushless Outrunner (http://www.hobbycity.com/hobbyking/s...2106&aff=64164)

2 - Motor Turnigy TR2830-1050 (http://www.hobbyking.com/hobbyking/s...idProduct=2112)

The two will be used with a 2S Lipo.

I prefer flight duration, has great thermal here, I would only use the engine to reach them.
Because you are a thermal type of guy I would suggest to take the option No.2. The motor is lighter and has low power consuption on 2s which will give you longer flight times. Since you are not looking for a rocket this motor is right for you.
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Old Dec 25, 2010, 09:24 AM
Vertical Unlimited
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Mandurah, Western Australia
Joined Mar 2007
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Quote:
Originally Posted by serginho_la View Post
And if I use a 2S lipo battery with a 1100kv motor, how many grams of thrust would pull?

So I could use a lipo with more capacity.
You need POWER to achieve whatever style of flight you want. Whether you pull 150W (or whatever your target power is) with a 3S or a 2S is irrelevant. With 2S you would need to pull more current than with 3S, so you'd need larger capacity cells (and probably a fairly big prop). Beware that brushless motors generally get less efficient with reduced voltage, so running an 1100Kv motor on 2S is not a recipe for power nor duration. 3S will give you more efficiency. If you want duration, you'll have to sacrifice power.
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