Which combat plane for a new flyer - Page 3 - RC Groups
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Jul 16, 2012, 04:08 PM
RWData's Avatar
Mo, you'll do just fine
Just remember to get a FB when you go for maiden, give him the stick's while you video the event ! (like what I normally do, he-he). If you look at my build, the nose section is a bit longer, helps with battery installation and give's a bit of flexibility to use different lipo sizes. There's very little down-thrust built in, and with control surfaces at zero incidence it flies quite well. I know you will be back to tell us how well it goes. Are you covering with packing-tape to beef it up a bit ? No matter, they are easy to build and doubtless I would make some mod's if I was building another (like bigger front fuse to get bigger batteries in). Don't forget to post some pictures of your finished model
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Jul 16, 2012, 06:18 PM
Corsir Crasher
Mopower71's Avatar
How long did it take to get your motor shipped?
I am worried it won't be here soon enough to get the rest of the build done.
Headsuprc is in Florida and usually ships same or next day.
Could you look at their site and recommend a motor, esc and prop from them. I would really appreciate it.
Jul 17, 2012, 03:25 AM
RWData's Avatar
This is the motor I started with, moved up to a bit more power once I had the hang of it. A 7x4 prop and 18-20A ESC is okay with this.
This motor could be a bit juicy with a 6x3 prop. Save all the fussing, just get a 25-30A ESC and when you 'mod-up' you will only have to change the motor & prop
Jul 19, 2012, 06:56 AM
Registered User


Mo, I have built 5 Funbats and they are a blast. I am running the same motor you are using. I had a battery drop out of mine so I made a hatch which is working wonderfully.
Last edited by kc2pxp; Jul 19, 2012 at 07:10 AM.
Jul 19, 2012, 07:09 AM
Registered User

Funbat folded wing KF Airfoil

I saw someone that asked how to fold the main wing and I wanted to give my suggestion. I have built 5 of these Funbats and I have learned a little with each build. At first I was using a razor blade to tediously cut a trench along the lenght of the wing and using packing tape on the opposite side. This was inconsistent. I still use packing tape along the fold crease (leading edge of wing) but on the inside, I used my soldering gun to burn a trench along the fold line. I find that this does not "remove" material but melts it, making is a little stronger. I then use a carbon fiber spar or bamboo. I use hot glue to adhere the wing once its folded over. This works great and makes for a strong leading edge on the wing.
Jul 19, 2012, 07:40 AM
RWData's Avatar
Kc2.. Interesting concept using a magnet to keep hatch open
On my build, battery hatch is on top, room enough because the nose on mine is closer to 120mm (5") from LE. Still, I 'spose inverted flight could present me the same potential problem ! BTW, nice colours
Jul 19, 2012, 08:05 AM
Registered User
RW Data, Thanks for the response. Why did you extend the nose? Was it to get a better CG with your motor? Was it to improve flight? Just curious. I am new to scratch builds and always looking to learn something new.
Jul 19, 2012, 08:35 AM
RWData's Avatar
kc2.. My funbat wasn't exactly to plan, but during pre-cut I was looking at what battery I would want to send up. Having a number of 3s 850 - 1300mah I rather fancied the option to run any of them depending on weather conditions. Also based on a FB's build where he noted that a bit more nose-weight could improve flight. So with the power setup I intended, it seemed logical to extend the nose a bit, fit a battery hatch on top and have a good range of battery options. Sorry to go on, but in answer, I suppose to get better (or more variable)CG and hence improve flight characteristics. I posted pic's of my build on p13 if it helps. It's interesting how a build can be done so many ways
Jul 19, 2012, 08:47 AM
Registered User
Where can I find your pics? What can I search for to find p13. this discussion only goes to p3.
Jul 19, 2012, 08:55 AM
RWData's Avatar
Post no13 on 1st page
Jul 19, 2012, 09:03 AM
Registered User
Very nice job. I like the colored packing tape. I also like how you put the elevator servo inside the fuse. the extended nose looks great. I may have to use that on my next build. Thank you.
Jul 19, 2012, 10:21 AM
RWData's Avatar
Originally Posted by kc2pxp
Very nice job. I like the colored packing tape. I also like how you put the elevator servo inside the fuse. the extended nose looks great. I may have to use that on my next build. Thank you.
That's what it's all about A FB once flew his 'dart' in adverse conditions and broke a wing off, half-hour later he had a new wing made of correx with a different shape and dihedral. Flew great too !
No plans, just a stanley-knife, 2mm correx & some hot-glue. It was a bit (okay a lot) heavier, but was such a buzz to just knock something up with 'TLAR' theory.
You are sure to be pleased with flights off the funbat, I fly mine in windy conditions when almost everything else is grounded, what a joy
Jul 19, 2012, 03:31 PM
Corsir Crasher
Mopower71's Avatar
Rw how many of these have you built?
I still have not ordered a motor/esc from a closer place. I hope it doesn't take two to three weeks to get here. I won't be ready for the combat if that happens. My local hobby store only has two motors an neither are even close to what I need. You would figure with all the plane parts they would have a few more choices of motors. And the local RC hobby store we use to have closed about two years ago.
Jul 19, 2012, 05:10 PM
RWData's Avatar
Mo, it's not great here for model parts either ! Our LHS doesn't really do component parts (esc's, servo's & motors) just ARF kits and some airframe only. I get most supplies on-line, some of which I have to order from US, so you should be in a better position with a few on-line options. Funbat - just the one at present, but might be about to expand the squadron with a 16" wingspan version. Trouble is when I order bits, I feel the need to take more kit than I need to make best use of the postage scale ! The other-half hasn't figured yet that I sometimes have to order two servo's but to make up the weight I get a motor & two batteries as well Talking 'combat', well a FB and I were going for it with our funbats a few weeks back and couldn't get close ! I even stayed slow, flat & straight while my FB tried to cut my paper streamer off the back, nope... it wasn't happening. 2 weeks later and I drive my simple delta up to the back of his flying wing, announce I'm coming in like a refuelling manoevre and I scored a hit. He carried on flying, mine without prop by now had a glide back down and I put it on the deck about 10ft from me, pleased with that considering
Can I post supplier links, or is someone going to be less than happy ?
Jul 19, 2012, 05:58 PM
Corsir Crasher
Mopower71's Avatar
Would a 60amp esc work with a motor only requiring a 15 amp?


Wire Winds
Idle Current(A)
Shaft diameter A(mm)
Motor length B(mm)
Cells Ni-Cd/Ni-MH
Motor diameter C(mm)
Cells Li-Po
Basic length D(mm)
Total length E(mm)

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