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Post by iflyforfun on Nov 14, 2010 11:43:22 GMT 1
Hi Husker, The Turnigy motor is good and I have flown this one in my cub. But I would recommend something different. Heads Up RC also has a 35-30 1100kv and it has a current rating of 25 amps. The Turnigy from HK has a 15amp rating. I know it says those Turnigy motors are only rated to 15 amps, but that's wrong, like most of the data that Hobbyking has on their products. On drivecalc the limit for that motor is listed as 27 amps, and when I run mine at 20amps the motor doesn't even get warm. One of the reviews is from a guy that says "Used this to replace the expensive rimfire outrunner on my gp reactor. Works perfectly, not even getting hot (barely warm) on a 12x6E while pulling 30 amps." Motors only really loose efficiency when they're turning power into heat instead of thrust. If the motor isn't getting warm it's a good indication that you're still within the efficient power range. I agree, it seems as if that particular motor is underrated in this case. I can only say that, based on the fact that a lot of people are using that motor and pulling higher amps than rated. I wonder if the guys that designed the program driveCalc actually disassemble each motor and check the circular mills of the winding. But living in the US and having the option to buy the 35-30 or just about all the commonly used motors with all the test data already done by Jeff, and the fact that they in most cases cost the same or less, and you have them in 3 days is a thumbs up decision. If someone new to the hobby is not told to look at facts like amperage ratings(weather they are correct or not) then they may get the idea that it's ok to overdraw on all motors. The next thing you know he may be putting a Turnigy 35-36C in the plane or another more expensive build and try and pull 40 amps from it.( that I can guarantee will not work, it's rated for 35amps..pull 40 and you can fry bacon on it) I was pulling 31 to 32 amps and it was getting warmer than I was comfortable with. Ifly |
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Post by iflyforfun on Nov 14, 2010 12:15:55 GMT 1
Used this to replace the expensive rimfire outrunner on my gp reactor. Works perfectly, not even getting hot (barely warm) on a 12x6E while pulling 30 amps.". I find that so hard to believe!!!!!!!! I just can't believe that. When I get back to my test bench next week I will put a 12 x 6e prop on a Turnigy 35-30 and check that myself. Come on really  . A 12 x 6e on that motor and barely warm!!! 30 amps!!!!!!!!! I will make a bold statement... "Impossible"..... NO WAY.. did this guy run it for all of 3 seconds. Is he flying around at 1/4 throttle for 10 minutes. Impossible!!!!!!!!!!! A TP 11x 5.5 pulls 24amps at 270watts. That is my own bench test data. My motor was comming down overly warm(not hot). I decided it was better to drop down to a GWS 10 x 6. I was now pulling 21 amps at 250 watts. I can not comprehend that someone has a 12 x 6e and it's coming down "barely warm". Ifly |
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Post by huskerpilot on Nov 14, 2010 16:06:43 GMT 1
Thanks guys for all the info. I already ordered the motor mount for the Turnigy 35-30 so I'm going to stick with that motor since the mount itself was as much as the motor. Haven't ordered the servos yet but will do some more reading.
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Post by leisureshoot on Nov 14, 2010 16:33:27 GMT 1
huskerpilot - sounds like you are off to a good start. you should enjoy that motor.
flydiver - sounds like you aren't a fan of E-Flite's servos. since they are more expensive, I think I shall just get the headsuprc version and an UBEC. Thanks.
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Post by huskerpilot on Nov 14, 2010 17:28:58 GMT 1
Okay, all orders in, here's what I got so far:
hobbyking.com
1x #ACC6/7028 Turnigy Accucel-6 50W 6A Balancer/Charger w/ accessories
1x #TR_PC/2169 TURNIGY BESC Programming Card variations
1x #TR35-30C-1100/3883 TR 35-30C 1100kv Brushless Outrunner (Eq AXi 2808)
3x #Z22003S20C/6306 ZIPPY Flightmax 2200mAh 3S1P 20C
1x #TR-Wattmeter/10080 Turnigy Watt Meter and power Analyzer
1x #HXT_UBEC/3735 HXT UBEC 5/6v output, 5.5~23v Input
6x #HXT900/662 HXT900 9g / 1.6kg / .12sec Micro Servo
LHS
4x HZSC push rods
1 6' roll Untrocote (olive drab)
15x hinges
eBay
Motor mount for turnigy 35-30C
Turnigy Plush 30a ESC
Should get me started, will update with photos as I move through the build!
Thanks for all the help!
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Post by flydiver on Nov 14, 2010 17:46:43 GMT 1
flydiver - sounds like you aren't a fan of E-Flite's servos. since they are more expensive, I think I shall just get the headsuprc version and an UBEC. Thanks. I'm neither a fan nor a foe. Never have used one. Read that again. I quoted some sources off other threads. For a well known brand name servo they sure got a lot of bad rap. For ANY servo you can find people that love them and people that hate them. |
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Post by Dillzio on Nov 15, 2010 8:56:46 GMT 1
Ifly, i just looked up the 12x6 prop for that motor on drive calc, and it does suggest that it would run at 29.5 amps. While this is consistent with the review we've been discussing, I also would find it hard to believe that the motor wouldn't be getting hot.
Husker, why use hinges? Using blenderm hinge tape is WAY easier, and it allows you to keep the top of the wing smooth with an air tight seal so you won't loose any lift.
BTW Husker, where are you from?
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Post by iflyforfun on Nov 15, 2010 9:44:02 GMT 1
Ifly, i just looked up the 12x6 prop for that motor on drive calc, and it does suggest that it would run at 29.5 amps. While this is consistent with the review we've been discussing, I also would find it hard to believe that the motor wouldn't be getting hot. Husker, why use hinges? Using blenderm hinge tape is WAY easier, and it allows you to keep the top of the wing smooth with an air tight seal so you won't loose any lift. BTW Husker, where are you from? Dill, where do you get your Blenderm tape from? ifly |
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Post by huskerpilot on Nov 15, 2010 18:55:21 GMT 1
Iowa, USA
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Post by Dillzio on Nov 16, 2010 15:02:11 GMT 1
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Post by huskerpilot on Nov 21, 2010 1:51:41 GMT 1
Just a quick update. I have the fuselage and tail feather covered. Doing the L-4 scheme as I have a friend with a real L-4 and am going to model it after him. Doing olive drab for everything but the bottom of the fuselage, elevator and wings; doing those in light gray just like the real L-4. I did the battery box strengthening, the wing saddle strengthening and did the carbon fiber wing spars. Just waiting for the servos so I can do the flaps and ailerons and cover the wing. More pics as they come in! Attachments:
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Post by leisureshoot on Nov 21, 2010 2:46:41 GMT 1
Excellent! Thanks for the pics.
I'll definitely be watching for the next pics.
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Post by huskerpilot on Nov 29, 2010 2:04:10 GMT 1
Anyone ordered things from Hobbyking.com and had stuff shipped to the US? If so, what was the shipping time. I ordered 2 weeks ago and my package status says it is in Zurich with no ETA to me.
Thanks
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Post by alaskabliss on Nov 29, 2010 3:05:05 GMT 1
It takes about two to three weeks to get to Alaska, depending how long customs wants to look at it.
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Post by huskerpilot on Jan 1, 2011 0:13:05 GMT 1
All done, finally got it all put together. Just like an L-4 about a half hour North of me. Can't wait to shake it out and see how she flies. Thanks for all the help everyone! Attachments:
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. A 12 x 6e on that motor and barely warm!!!
