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My overloaded airframe flew on an APC 4.75x4.75 on a 20g 2200kv motor with a 500mah 2s batt. Flew is a loose term. I could keep it in the air at WOT if I worked at it. My airframe however, is nearly 2x heavier than one built from 3mm depron. Its 5mm depron with hot glue, and a doubled up KFm airfoil. Mine now flies nicely on a larger prop and motor.
I'm curious to the performance increase by giving the wing a slight UC at the leading edge; looking forward to your maiden. |
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got my f15 done im going to maiden in a min so fingers crossed and the weather is purfect no wind at all no breaze at all perfect maiden weather yay edit perfect maiden flew mint only needed some down trim tiny bit tail heavy maybe rolls are drill like and very fast tis a fast plane once i dial it more should be good |
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Last edited by foxy29; Apr 09, 2010 at 04:32 PM.
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4,75x4,75 2s/13,6A/102W 3s/24A/262W if this is out to go by 262watts will be quick sharp on a light 100-140g plane my 3800kv 10g 7 amp motor is pushing 40mph on 2s so yours should scream have you got a watt meter?? |
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I have a multimeter, but not an inline tool like for R/C. I fitted everything on today, need to balance and velcro in battery and adjust thrust angle on the motor. After that, just some reinforcing and a search for tall grass.
I tested the motor with that prop and it really screams. Sounds like an electric leaf blower. Couple of questions though. With all the gear and supposedly balanced, what kind of toss will I have to give it to test cg and glide with no power? What kind of thrust angle do you guys reccomend? |
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you can use a multimeter witha a 10 min mod and a few plugs an a reisister look here its what i use it says 10a on meter but goes to 20 and will do more if you solder to the shunt inside https://www.rcgroups.com/forums/show...=949923&page=2 a post by sir Raleigh has the best pic took me 10 mins to do and i riped a reisister out of some dead leccy crap i always keep https://www.rcgroups.com/forums/atta...mentid=2376163 my cg is just after the first tab after the wing /fuse join at about 4 and half cm after the wing break if its about there it will be golden dont need much of a lob to test just try it on maiden with power on, mine flew on first go even with cg to far back just trimmed it out you will enjoy this plane its my fave at the min |
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Last edited by foxy29; Apr 09, 2010 at 08:07 PM.
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quick question to those who use this gorilla glue stuff, what size bottles do you buy most, and how many planes does it build on average, seen 2oz-57ml bottles for like £3.50 and 115m bottles for 5 quid and 8 for 275ml bottles from here.
http://www.gluegorilla.co.uk/ and p+p is 1.50 seen cheaper but P+P was way more but this seems like very good glue for depron,and i plan on using depron a lot i love building now im hooked i will never buy another plane again, unless it somthing special lol |
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Hi guys! I need your opinion.. I cant find a AX 1806N motor locally. What can you say about this motor as an alternative? http://www.gsmodels.com/en/products_view.php?id=256
If im going to use this one, does it mean I have to use a bigger prop (8x4)?? |
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glad you got it flying, i love just slowing right down to almost stall and give it full wack and watch it accelerate in an instant,also high alpha is fun with this plane i like to come down as low as i can then shoot off full wack just before i touch the ground impresses the kids they love it ,my nephew thinks he can run faster and likes to try racing it when i slow down and then shoot off good fun
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http://www.nicohobbies.com/store/ or hobbyking not ordered from them but they do world wide http://www.hobbycity.com/hobbycity/s...idProduct=5432 but any 10g-to 24g fairly high kv motor will work say 2100kv to 3800kv range will work, the 24g 2100kv and 2500kv ones do very well 50mph kinda speeds on 3s im using a turnigy 10g t1811 3800kv on a 4x2.5 gws or a 4x3 and a 500mah 2s and a 800 2s or try a blue wonder type in 2500kv or 3000kv or even a emax 2805 on 2s but seen peeps run these emaxes on 3s with no probs but some have tho,turnigy do a range that will work as well a D2211 at 2300kv 19gram would work on a 5x3 or 5x4 off topic here is a link to pics off my shumate f15 enjoy https://www.rcgroups.com/forums/show...postcount=2526 |
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Also, if you can get Elmers Ultimate Glue, its the same as Gorilla Glue, and half the price. I have them both, and its the same thing. Goes on the same, sets up the same, and is as strong. My 8oz bottle of GG has laminated the wings on 7 planes, and the monobloc on 2. There is about 2oz left. I have wasted a lot learning to use it. |
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thanks for that info ace,i never heard of fabritac looks like i will be looking in the sewing shops, uhu por is £5.50 in the model shop a complete rip or it would be what i use, the depron place i use is 2.50 BIG difference just forgot to stick it on my order. i have been using bostick solvent free comes in 2 flavors bog standard and extra strong its good for bits that fit first time and is like a contact glue if left for 10 mins but takes hours to dry if you just put parts together with no drying time before puttin parts together so guess it needs air to work its like a white glue and bond is fairly strong but gives before the foam does unless a large area is glued and is only £1.67 AND IS SOLD ALL OVER big plus asda/wilco's most diy shops,but sort of helps to absorb shock in my several f22 nose in's lol. looks like all my glue is coming from the land of internet as not one shop and ive looked in almost every shop that does diy/glue type stuff nothing only wood glue and nothing PU like probond, i hate this town more and more each day its pathetic for stuff like this lol |
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An agent
Foxy, you need an agent in the USA to help you purchase what you need/want! Stop farting around with those rip offs where you live. PayPal will convert currency for you when you send money to someone else. I have no idea about shipping prices, but they can't be that bad. Just a thought. Marty
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