Banche

Hey that sounds like the setup! It will fly light. I am going to build a 50cc 3d'r but I have to decide on this bird myself. I want to see a video or somthing that will show the 3d stuff. couldn't the aifoil affect the wing loading. How do we really know that it will be a heavy flying plane.?

drumbum

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we dont . people are just number crunching. ill wait for the real test>>> FLYING IT

EXTRA ADDICT

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Well we will know soon enough everything will be here this coming week! A few days to assemble it and to the sky its going I dont expect it to perform like it would with a DA 50 on it but I think it will suit my needs as I am not strictly a 3D pilot I like a plane that is good at both 3D and precision flying so I don't really care if it has a 2 to 1 thrust to weight ratio. It is nice when it works out that way! I will be curious to see how some of the other setups turn out. Hopefully my setup will be good! We will see in a few days !

BR289

My Feedback: (106)

Greetings,
I will putting an FPE 2.4 in mine....same weight as a DA 50, not as much power though, but I am not a big 3-D type of guy so it should be fine......Good luck to all that get one.
Blair

bodywerks

My Feedback: (4)

It's plain and simple..a plane this size at a 32 ounce wingloading compared to one of the same size and a 24 ounce wing loading will have to fly faster to maintain the same amount of lift as the lighter one. This situation works the same for knife edge, the way the airplane harriers, waterfalls, flatspins, lands, takes off,...everything is affected by wingloading.

Extra addict, what prop and RPM's do you ecpect from that 1.60???

flatlandmike

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i just ran an old used OS 160 on the test stand and was swinging a 18x6w apc prop at 9400 it was probably a little lean so i would expect 9200 rpm

EXTRA ADDICT

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I have heard of this motor swinging a 20X6 (wood) 8500 rpms. It might not work out then agian it might be great it will be fun finding out!

Jason 3-Danhakl

My Feedback: (10)

Guys I agree that the wing loading is a huge part of the overall performance of the aircraft. The fact is I know of two Extreme flight Yaks that weigh a legit 17 lbs. Both are built stock with the bare min of equipment used. If you compare the two with those weights the 260 looks a lot better. Either way I have not seen any weights posted besides what Horizon is saying. If it is a legit 15.5 with a DA 50 it will fly well. It won't fly well in Denver. Not many airplanes do. Wing loading is Everything out there. Jason

mikeboyd

When is H9 going to start going with color schemes us old farts can see on a cloudy day. Just sold a great flying H9 330L, because of the white and blue, that disappears in the clouds at the end of the pattern. If it doesn't have a bunch of red and yellow or some other highly visable color most of us shy away from it. Looks like a great plane, good size, but nearly invisable to us senior citizens.

Flyfalcons

...and that is the truth 100%. Going on wingloading and weight alone, why are there so many Cardens flying? Because it isn't the only part of flight characteristics.

mikeboyd

No one even mentioned a Moki 2.1 for power. On another thread, we figured the difference between the DA and Moki in price would net you about 150plus free flights on glow fuel, with no weight penalty, actually, by the time you add the weight of the batteries, ignition, etc. the Moki on a Bisson or a pipe (even more power) becomes ever more enticing.

50%plane

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Use coverkote and a sealing iron.

bodywerks

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That's IMPOSSIBLE, especially if you really mean bare minimum of equipment. To me, bare minimum means DA muffler, LiIons, no pilot, carbon spinner, wood prop, and even no wheel pants. This is the situation of mine and it is 15 pounds, even. 17 pounds would probably be a tuned pipe, pilot, aluminum spinner, cf prop, wheel pants, and nimh or nicad batteries and maybe even a choke servo or heavier engine.
May I also add that I am in Colorado Springs, a thousand + feet higher than that Denver area you mentioned, so you can certainly understand my concern for weight.

drumbum

My Feedback: (1)

all you guys shouldnt freak out so much. the plane isnt even in anyones hands as we know of yet.. who knows it might come out 12lb with a Ys140DZ on it and fly like a dream. it could come in at 15 with a DA 50 and fly like mike said it would... his designs have a pretty good track record so far.. of corse some people might not like it. im sure it wont please everyone. i dont know a plane that does..

proptop

My Feedback: (8)

I checked one out at the LHS today...
Looks real good, and built nice and light. I don't think it would come in at quite 15 lbs. though.
My guess would be more like 12-13 with a light engine and equipment. I was also thinking maybe an O.S. 1.60 or Saito 1.80 (because that's what I already have )

I had a WM 27% PW Extra (with a 3W-50 ) for awhile, and this new 260 feels substantially lighter, structure wise...

How about a ZDZ 40? I got a friend who's got an "extra" one lying around...hmmm

50%plane

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There's a guy at the flying field that has the Moki 2.1, and he has trouble with it every time.

Maudib

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Net takeoff weight would be closer than you think as the larger glow engines will require a 20-24 oz tank...

A 12 oz gas tank will get you a GOOD 20 minute flight time on a DA-50...

So overall the wingloading/CG will remain more consistent on the DA-50 than a large glow engine.

The DA-50 will retain a much higher resale value and power the plane insanely.

I will admit that I think it would be on the higher end of wingloading for me...

OS 1.60 would be my choice, but I'd have to guess that thi bird will be hard pressed to balance with the 1.60.

bodywerks

My Feedback: (4)

If I could justify spending $650 for a YS160, I think I would be all over this plane, as I think 11 3/4-12 pounds, dry, would be possible, assuming I scrapped the wheel pants, went with LiIon power, and found some places to shave weight. This is also assuming I won't have to add dead lead in the nose for a proper CG, even with all equipment forward.
I am on a wife-limited budget, so I will have to see how everyone else fairs with smaller engines and go from there. It would be nice, though, to not have the balance issues, and be able to find a 38-44cc gasser that weighs around 35-38 ounces and has killer power...I am trying to get away from glow!

BR289

My Feedback: (106)

In the beginning of the thread, I believe Mike stresses the point that this plane needs an engine no heavier than three pounds. The only two engines that are three pounds ( Gas ) are the DA50, and the FPE 2.4..........The Fuji's, ZDZ40, Zenoah G38, G45, and US Engines 41 are all too heavy according to Mike.......
I am sure the DA50 is way more than enough, so throttle management is a must with that engine!

hovermaster

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Good point Blair.. where did you learn that... You know you're never going to fly that plane anyway.. hahaha

gg

drumbum

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my BME 50 is 3 lbs so i bet the BME 40 is lighter.

BR289

My Feedback: (106)

Hovercrapper,
If I build it, it will fly...as long as I dont let you take it up! I just have to get around to building it, thats all........Its sitting on my sofa right now....
Remember, I only have to put my planes together, you have to fix yours...........
Good Game to me!

docwallace2

My Feedback: (45)

I got mine last friday. I haven't had a chance to work on it yet hopefully I will start tomarow. I'm going to put a DA50 in an see what It can do.

BoneDoc

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before you guys put it together, can you weigh all the parts together? That way we can get an estimate of what we can play around with.

Thanks
Josh

PS: I think that will silence or put to rest all this discussion about weight, wingloading, and what "building light" means

cstevec

My Feedback: (1)

I am putting one of these together right now with a ZDZ 40 and Futaba 3050 digitals. You may save a little weight with the hardware but there isn't any way to save weight in the airframe itself as it is one of the lightest planes I have ever seen. If you found a carbon fiber wing tube for it and replaced the pushrods with carbon I suppose you could save a few ounces.