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Old Sep 20, 2011, 07:58 PM
Lost but making good time
Joined Nov 2008
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That's awfully low...What size battery and prop?
7volts x 3.5 amps = 24.5 watts
Is the prop on correctly i.e. prop specs pointing toward the nose of the plane.

Regards,

Hankg
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Old Sep 20, 2011, 08:29 PM
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blackboots1337's Avatar
United States, WA, Mukilteo
Joined Dec 2010
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Quote:
Originally Posted by hankg View Post
That's awfully low...What size battery and prop?
7volts x 3.5 amps = 24.5 watts
Is the prop on correctly i.e. prop specs pointing toward the nose of the plane.

Regards,

Hankg
Yeah its on correctly, 2 amp meters confirmed that. So ? Is my ESC damaged or broken?
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Old Sep 20, 2011, 08:46 PM
RC Adddict
Wilfor's Avatar
Canada, BC, Williams Lake
Joined Jan 2010
4,322 Posts
Did you calibrate your throttle Black ? you may not be getting full throttle
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Old Sep 20, 2011, 08:47 PM
Lost but making good time
Joined Nov 2008
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blackboots,

No, I doubt it. Some ESCs need to be programmed. Just don't want to suggest something that will destroy your ESC. I have that motor on a 9oz foamie and run an 8 inch prop and a 3S 690 milliamp battery to power it. Plenty of power for 3D flying without burning up a 10 amp ESC...puts out about 75 watts.

Regards,

Hankg
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Old Sep 20, 2011, 09:16 PM
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United States, WA, Mukilteo
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Quote:
Originally Posted by hankg View Post
blackboots,

No, I doubt it. Some ESCs need to be programmed. Just don't want to suggest something that will destroy your ESC. I have that motor on a 9oz foamie and run an 8 inch prop and a 3S 690 milliamp battery to power it. Plenty of power for 3D flying without burning up a 10 amp ESC...puts out about 75 watts.

Regards,

Hankg
Next charge here Ill reconnect the amp meter and see what its pulling again after I reprogram my ESC. Let you know what I get!

Its not like it doesn't have power it just has trouble lifting an extra 100g, when empty I can do some 3D stuff, its actually really fun. But when I slap the camera on there I can only do those kinds of things after a dive.
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Old Sep 20, 2011, 09:22 PM
Lost but making good time
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OK...I see where your coming from now.

Regards,

Hankg
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Old Sep 20, 2011, 09:31 PM
Sopwith Camel's Cousin
Between my tx and crashed aircraft
Joined Mar 2006
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Quote:
Originally Posted by blackboots1337 View Post
Thanks, my current amp draw is 3.5 amps at full throttle. On my 2S. Thanks for the info though.
You may have already answered this (but I cannot find):
what motor and what propeller do you have?

3.5 amps at full throttle can also be a symptom of a combination of
a low kv (revolutions/volt) motor and
a small propeller
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Old Sep 20, 2011, 10:42 PM
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United States, WA, Mukilteo
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Quote:
Originally Posted by flying-llama View Post
You may have already answered this (but I cannot find):
what motor and what propeller do you have?

3.5 amps at full throttle can also be a symptom of a combination of
a low kv (revolutions/volt) motor and
a small propeller
I am using the default motor and prop that was recommended with the kit.

To be more specific:

http://www.fancyfoam.com/index.php?m...g35m6gip9ouuj3

and

http://www.fancyfoam.com/index.php?m...g35m6gip9ouuj3
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Old Sep 20, 2011, 11:28 PM
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Kansas, USA
Joined Sep 1999
3,980 Posts
100 grams is 3.5 oz and is probably close to a 50% increase in weight. Also on 2s with the recommended 7x6 prop it will already be low on power. There may not be anything wrong.
If you want more thrust you can go to 3s.
Mike
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Old Sep 21, 2011, 09:04 AM
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hi

You use a special propeller ?

thx
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Old Sep 21, 2011, 09:17 AM
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Kansas, USA
Joined Sep 1999
3,980 Posts
I have taken an 8x4.3 and cut it down to 7". You just need to make sure to balance it before you use it. Cut a 1/2" from each tip and then sand the long tip until it is balanced. Yes it has less pitch but the blade is almost twice as wide. You get more thrust but not necessarly more speed.
Mike
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Old Sep 21, 2011, 03:05 PM
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hi

The left propeller pitch?

thx
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Old Sep 26, 2011, 06:21 PM
Sopwith Camel's Cousin
Between my tx and crashed aircraft
Joined Mar 2006
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Quote:
Originally Posted by smiley007 View Post
...The left propeller pitch?
...
Hello. You may want to rephrase this question.
I know that I am not sure of what you are trying to ask.
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Old Oct 03, 2011, 04:21 PM
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Dayton Intl, Ohio, United States
Joined Jan 2000
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Mine's ready for equipment. I needed something to fly during the standard round & round sessions at the indoor fly-ins this year. I cut 5 deg of downthrust into the foam for the motor mount to negate some of the climbing under power tendencies that make it a good trainer. Not sure about the motor yet. Will probably go with the 1700Kv BW on 2S with the 7 x 6 prop.

Azarr
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Old Oct 03, 2011, 05:22 PM
Lost but making good time
Joined Nov 2008
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Azarr,

Go into the downthrust a little more...if I look at your second picture, do you mean that the motor mount points downward toward the nose of the plane at a 5 degree angle?

Regards,

Hankg
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