RE: Hobby People Wild Wing EPP  
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All Forums >> Electric Aircraft Universe >> Foamies! - RC Electric Foam Aircraft >> RE: Hobby People Wild Wing EPP
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RE: Hobby People Wild Wing EPP - 9/2/2007 10:01 PM   
Spid


 

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From: North Olmsted, OH, USA
Status: offline 		epoxy would work or hot melt glue. I ususally use hot melt glue and don't have any issues. Wrap some maksing tape around the body of the servo first regardless as to which way you glue them in.

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RE: Hobby People Wild Wing EPP - 9/3/2007 1:45 AM   
SlabBro


 

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From: havana, IL, USA
Status: offline 		Hey all! flew the wing today after reapplying the double sided and it was better. One thing i've noticed, atleast in mine, are they that sinsitive to the wind?. When it's calm, it's rock solid, but worse than a twitchy chiwawa on a even slightly windy day?later guys. Oh, here's the rest of my crew from today. The young one is my son and is 8. He just needs to learn the landing and he's soloin.

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RE: Hobby People Wild Wing EPP - 9/5/2007 2:03 AM   
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Status: offline 		This things don't recover anything like a plane, that's for sure!! thought maybe somehow the CG got off so played a little and man o man did it change the whole attitude of it. let's call it the maple leaf spiral of death lol . I checked the lateral cg and it seems to be off. if they are that sensitive then that would have been the roll problem i was dealing with, maybe. Prop jammed up on the motor mount and burnt itself a little, busted the mount itself, and the little plastic piece in front of the motor. have new motor by friday hopefully. later.

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RE: Hobby People Wild Wing EPP - 9/5/2007 9:25 PM   
avalentine


 

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From: camarillo, CA, USA
Status: offline 		Yea, I know the wild wing is very sensitive to CG & lateral balance. I have the fins out at the wingtips on mine, it helps with the lateral rocking some wings get @ high speed. You gotta get a brushless on that thing.

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RE: Hobby People Wild Wing EPP - 9/7/2007 3:49 PM   
lilbanchee


 

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Status: offline 		My WW failed the first flight, and all after the first. The CG was spot on, and I was using the reccommended equipment, speed 400 motor, 5x5 prop, 8 cell battery, HS-55s, cirrus reciever. Anyone want to tell me what I did wrong?

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RE: Hobby People Wild Wing EPP - 9/7/2007 8:30 PM   
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Status: offline 		Hey banchee! did u use the manual's CG or the forum recomended CG?


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RE: Hobby People Wild Wing EPP - 9/7/2007 9:48 PM   
lilbanchee


 

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From: Chula Vista, CA, USA
Status: offline 		I used the reccommended CG, and equipment, but no go.

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RE: Hobby People Wild Wing EPP - 9/7/2007 10:43 PM   
SlabBro


 

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Status: offline 		second page, about half way down is the a post where they say the CG should be set around 7 1/2" not the 81/2" in the manual. also the thrust line should be parallel with the bottom of the wing,(made my own) the stock motor mount is off a few degrees.those were the recommended to me and they worked great. flying first hand launch.try those settings and see how it goes. good luck. and fair warning, i'm just a newb to the wings, not a pro. just passing on good advice given to me. later


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RE: Hobby People Wild Wing EPP - 9/8/2007 1:34 AM   
lilbanchee


 

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From: Chula Vista, CA, USA
Status: offline 		Well, I've crashed the wing too much, so it's in no recogniseable shape.

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RE: Hobby People Wild Wing EPP - 9/8/2007 2:45 AM   
SlabBro


 

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Status: offline 		order another and go again. they are worth the setup time.

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RE: Hobby People Wild Wing EPP - 9/14/2007 2:47 AM   
hawkman-RCU


 

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Status: offline 		ok. so why did my motor fry? flew my wild wing today for the first time and it was great,very fast.all that stopped after about 2 minutes of flying.the motor fried during the flight and i only flew full throttle for about 4 seconds for a low fly by.
here is my set up.
kms inrunner,hobby peoples motor for the ducted fan on the fantom jet.
motor stats/max current 30amps,continous amps25,kv rating of51000.
11 volt,3 cell apex lipo 1350 rated at 12/15c
t bird 36 amp esc
berg reciver.
i was running a 5x5 apc prop.any ideas why it fried? thanks.

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RE: Hobby People Wild Wing EPP - 9/14/2007 3:01 AM   
Spid


 

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Status: offline 		My guess is that you were pulling somewhere in the neighborhood of 60-65 amps. 5x5 prop is way too much prop for a 5100Kv motor. 4.1 x 4.1 would have you in the 40amp neighborhood. A 5100Kv motor is really not good for direct drive prop applications. Surprised you didn't puff your Lipo or smoke your ESC. (well not really as your flight time was real short).

< Message edited by Spid -- 9/14/2007 3:04 AM >

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RE: Hobby People Wild Wing EPP - 9/14/2007 4:47 AM   
SlabBro


 

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From: havana, IL, USA
Status: offline 		Hey all! i'm lookin at a brushless upgrade for my wing but i'm not very knowledgable on the whole brushless thing. i got a hold on the sizing thing mostly but i can't really find a straight answer on "the basics". Are there rules as to how many Kv per ounce of weight. the higher the Kv the more torque but now necesarily the rpm's, lighter planes need less Kv's:? And an idea on the right lipo. the set i was lookin at was a 25amp ESC, like a 1250Kv with a 8x6. These set ups are a little pricey so hate so suffer what hawkman is. later guys

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RE: Hobby People Wild Wing EPP - 9/14/2007 6:09 AM   
hawkman-RCU


 

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Status: offline 		hey spid. thank you for your response.
so are sayin'g that with that much prop the motor could not operate at correct rpm? i dont understand how the motor could draw that much amp's from a 15c rated battery. isn't the ecs supposed to only alow 36 amp's.? you know ive been flying almost 25 years now and that was with gas. this electric scene is very complicated. thanks again for your response. blue skies to ya.

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RE: Hobby People Wild Wing EPP - 9/14/2007 11:58 AM   
Spid


 

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Status: offline 		Hi hawkman,

Basically, the amp load on that motor with that prop was more than it could handle and it fried. The 15C 1350 is rated for 20amps. Which means it should be able to deliver 20amp continuously without being overdischarged/cell(s) damaged. Yes the batteries can deliver more amps than its rated for but the results/damage from over discharging can be anywhere from an extremely shortened lifespan to a dead cell to puffing the pack to the pack actually exploding. Same goes for ESCs and motors - they are nominally rated to operate up to a given amp/watts/volt rating. You can push them beyond that rating, some hold up fine, others do not. It's always a crap shoot when you start pushing more amps etc... through these things.

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RE: Hobby People Wild Wing EPP - 9/14/2007 12:12 PM   
Spid


 

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quote:

ORIGINAL: cubmaster126

Hey all! i'm lookin at a brushless upgrade for my wing but i'm not very knowledgable on the whole brushless thing. i got a hold on the sizing thing mostly but i can't really find a straight answer on "the basics". Are there rules as to how many Kv per ounce of weight. the higher the Kv the more torque but now necesarily the rpm's, lighter planes need less Kv's:? And an idea on the right lipo. the set i was lookin at was a 25amp ESC, like a 1250Kv with a 8x6. These set ups are a little pricey so hate so suffer what hawkman is. later guys


Here's a chart to get you in the neighborhood.
http://www.parkjets.com/himax.html

For simplicity in swapping the motors, you'll want an inrunner so you don't have to mess around with making up a motor mount,etc... for an outrunner. For that Wing a Mega or Himax or equiv inrunner in the 2000-3000Kv range will work nicely when propped right. Wings are built for speed (Higher Kv / small prop - but not too high Kv, something below 3500Kv). The setup you listed is more for a scale/pattern type plane (electric, foamie). That would be a nice setup for a Cap, Extra or Yak, no so much for the WildWing.

I'd post your rules question in the Power Systems forum on RCGroups. I'm sure the gurus over there can give you a brushless 101 type guide.
http://www.rcgroups.com/power-systems-13/

hope this helps!
Kevin

< Message edited by Spid -- 9/14/2007 12:13 PM >

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RE: Hobby People Wild Wing EPP - 9/14/2007 6:48 PM   
avalentine


 

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Status: offline 		Hey hawkman, I'm running a KMS 130/15 inrunner on mine. It is the same size as the fantom motor (2040) but has a lower kv (3980). I'm using a 4.75 x 4.75 prop but only using a 2100mh 2 cell. I was originally going to use a 3 cell but I posted my setup before I flew it and got some good advice from Spid (kevin), basically telling me it was going to do what happened to yours. Believe me, even with just a 2 cell it screams. I agree the newer electric scene is more complex, but if your not not sure what will work, ask someone who does. I know, I just puffed a fairly new 1500mh 3 cell in my Twinjet. It was rated at only 15c and should have been at least 20c with 2 brushed 480s pulling from it. I found this out after asking around after the fact. Good luck to all with your new set-ups.

Andrew

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RE: Hobby People Wild Wing EPP - 9/15/2007 6:49 PM   
hawkman-RCU


 

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From: phoenix, AZ, USA
Status: offline 		hey avalentine, thanks for your input.
im gonna go with your set up.it sure is hard trying to keep everthing cool when it is 110 here in phoenix.thank's again.

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RE: Hobby People Wild Wing EPP - 9/17/2007 1:00 AM   
hawkman-RCU


 

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From: phoenix, AZ, USA
Status: offline 		hi avalentine.
what is the c rate of the battery you are running?will my t bird 36 amp be ok.im going to run the same motor that you are running.thanks.

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RE: Hobby People Wild Wing EPP - 9/17/2007 7:08 PM   
avalentine


 

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From: camarillo, CA, USA
Status: offline 		Hey Hawkman, The battery I use most of the time in my WW is an Impulse 2100mh rated at 16c. The Impulse batteries are good. I also use an electrfly 1500mh rated at 15c, It gets pretty warm, not so good, gotta watch the throttle managment. Your t-bird 36 will be more than enough, just don't run it wide open the whole flight or your batteries will get real hot. I've used a couple of different speed controller's with this motor battery combo, right now I'm using a KMS 18amp with no problems. The KMS 130/15 is rated @ 15amps max, so with a 2 cell you should be fine as long as you don't over prop it. I started out on this set-up with a 5 x 3, flew great with that also, the motor comes with a recommended prop chart, its a good starting point. Let us know how it goes, I got some good flying time in my WW this weekend as well as with my new twinjet, good fun.

Andrew

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RE: Hobby People Wild Wing EPP - 9/20/2007 5:21 PM   
avalentine


 

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From: camarillo, CA, USA
Status: offline 		Hey guys, I attached a couple pictures of my WW. The first is of the original setup (speed 400, 15a speed control, 8cell 1100mh NIMH). The second picture is of the upgrade (3900kv brushless, 18a speed control, 2cell 2100mh lipo). Its like night and day.

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RE: Hobby People Wild Wing EPP - 9/21/2007 12:34 AM   
hawkman-RCU


 

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Status: offline 		hi guys,where is a good place to buy a watt meter? i saw one that was green in color and it performed 4 functions.i can't remember where it was thanks.

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RE: Hobby People Wild Wing EPP - 9/21/2007 3:09 AM   
Spid


 

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Status: offline 		Here's the one I use. I think it's the one you're referrring to. It comes in Blue, Green or Black

Blue - http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXLMV0&P=7
Green - http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXLMV1&P=7
Black - http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXLMV2&P=7

Hope this helps!

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RE: Hobby People Wild Wing EPP - 11/12/2007 5:11 AM   
jjacquot


 

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Status: offline 		Can someone here that knows a thing or two about power systems take a look at my bad ideas for motor, batteries and esc below and tell me if I'm going to regret these choices in a way that might require a fire extinguisher?

All from United Hobbies:

Motor: http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=4211

Prop: APC SF 6x4

Speed Control:http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=2167

Battery: Any 3s lipo 2000 to 2500 mAH.

Thanks,
jjacquot

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RE: Hobby People Wild Wing EPP - 11/12/2007 11:02 PM   
Spid


 

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From: North Olmsted, OH, USA
Status: offline 		Hi jjacquot,

With that prop you are going to pull approx 25amps. That motor is only rated for 12. You'll smoke the motor. How long before you toast it depends on how much abuse it can take, cooling from the air in flight, etc...

Propping down in the 4.75x4.75 range will get you in the 15-17 amp range. The ESC you listed will handle the load fine.

The question is how do you want it to fly? If you are not too concerned about top end speed but want nice vertical performance / thrust, then you want a lower Kv motor to swing the 6x4. Something in the 2100-2300 Kv range that can handle a 20-25amp load. If you still want that motor then you will have to prop down to something in the neighborhood of 4.75x4.75, 4.7x4.2, 4.5x4.1.

The 4.5x4.1 might be the be prop fit for the motor, it will get you down around 14amps with a pitch speed of around 95 so actual speed would probably be in the 80's. Your 'cost' is loosing vertical performance and thrust, but once it gets 'on step' it'll scoot at a nice clip.

Hope this helps.
Kevin


quote:

ORIGINAL: jjacquot

Can someone here that knows a thing or two about power systems take a look at my bad ideas for motor, batteries and esc below and tell me if I'm going to regret these choices in a way that might require a fire extinguisher?

All from United Hobbies:

Motor: http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=4211

Prop: APC SF 6x4

Speed Control:http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=2167

Battery: Any 3s lipo 2000 to 2500 mAH.

Thanks,
jjacquot



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