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Working on a 4-5ch micro any plans/picutres/examples to help me out? AUW under 5oz

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Working on a 4-5ch micro any plans/picutres/examples to help me out? AUW under 5oz

Old 05-02-2006, 04:48 PM
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Default Working on a 4-5ch micro any plans/picutres/examples to help me out? AUW under 5oz

I'm currently in the works of designing a 4ch micro rc airplane. All up weight of about 120grams(4.25oz) or so is the aim. my equipment and motor(s)/batteries weighs about 85grams (3oz). Either single or dual engine same weight putting out around 120grams of thrust. So I got 1.25-2oz for the airframe before I'll want to look into a larger power system.

Can anyone recall any plans, example photos, or anything I can look at. This is the first airplane of this small size I've ever done and I'd like to get some more ideas. I can't find a satifactory plane of the market, especially since I'd like it 4ch+. Most I've seen are really poorly performing, drag the tail, are under powered or flat don't fly anywhere near right.

I'm not sure if I want to dremel/carve it out of foam, I don't want it flat. I don't really know what type of foam to use either if I did.
I'm not certain I can build one up from balsa light enough.

I'm considering making it 5ch and doing full length flaperons so I can have the option to fly it slowly in a smaller space. I'm basicly attempting a micro slowflyer/indoor sport flyer, hoping the flaperons will make that versatility a reality.

Any links, plans, pictures, or input is welcome an appreciated.


Gigaah.
Old 05-02-2006, 05:18 PM
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Default RE: Working on a 4-5ch micro any plans/picutres/examples to help me out? AUW under 5oz

have you looked at any of these?

Hobbico
biplane http://www.flyzoneplanes.com/airplanes/hcaa0250b.jpg
micro series: http://www.flyzoneplanes.com/airplanes/hcaa0232.html

Cox Micro Series
F4U Corsair http://www.coxmodels.com/prodinfo.asp?number=006200
P-40 Warhawk http://www.coxmodels.com/prodinfo.asp?number=006201
P-47 Thunderbolt http://www.coxmodels.com/prodinfo.asp?number=006204
Spitfire http://www.coxmodels.com/prodinfo.asp?number=006203

a LOT of people have done those planes with a lot of sucess. their AUWs were around 4 or 5 ounces i think. brushless motors really make them go too. going 4 channels wouldnt be hard either, most used ailerons and elevator, one or two (mine included) used flaperons. adding a rudder in there wouldnt pose much of a problem i dont think.

if you build your own, blue core foam is often used (the kind used for insulating, its sometimes pink too). did you have any certain style of plane in mind? or size?

if you had a couple hundred dollars to throw around, you could make a 4 or 5 channel micro plane, with a brushless motor that puts out around 2 ounces of thrust, and the whole thing could weigh a little over an ounce, with a 12" or bigger wing span. (technically, you'd be looking at around 400 to 500 dollars...but hey, its just a hobby )

nick
Old 05-02-2006, 07:02 PM
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Default RE: Working on a 4-5ch micro any plans/picutres/examples to help me out? AUW under 5oz

Well I really like twin engine p-38s. however for my first attempt I'm probably going with a more basic high or middle wing design.
I don't want to sink a huge ammout of cash into it. I'm looking to get off cheap and plan on using the smallest gws equipment (3.6g rx, 5g lipo esc, 5.5g servos. The gws motor I'm looking at weighs 15g and put out 2oz of thrust at 7.2v so I'll, they also have geared models that weigh 30g and do about 4oz thrust. so I'll either use one geared or two Direct drive. I can't justify brushless

http://www.gws.com.tw/english/produc...stem/edp50.htm

Thanks for the foam selection input. I might order one of those models and see what I can do with it, though they might weight a bit more than I was looking for. I'll order one and see.

I think with out having to spend gobs of cash I'll probably be in the 3.5-4.5oz range AUW, though I'm not sure how much that foams. I'll get some and find out..it'll probably be lighter than covered balsa if I do it right.

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