I have the h9 edge also.I built two of them.My first one came out 12 lbs ,with 2 elev.servos and 1 rudder servo in the rear.os 160 in the front.No additional wieght required.I lost radio contact with it and watched it fall what seemed like a mile till it crashed.So I bought another one.Second one set up same as the first.I was not real critical with balancing because of just building one identical to it.Well it turned out that I was extremely tail heavy.I had to add 7oz to the nose.So check your cg for yourself.What someone else did does not always apply.I would say you are probably way off on laderal balance or cg.I fly mine inverted and then watch the plane.If my nose falls fast inverted then I remove nose weight till it stops.I havnt had any tip stalls with either of them.They really fly well.I dont have a alot of throw on my elevator though.I think some have problems because of too much throw. Tivey

I agree with Tivey Just came back from the flying field and helped a friend with his new plane and he had the same motor as your's Steve. And it flew great. Had all servos under the wing was a bit nose heavy about 1'' floated in on landings. I know what my next plane will be. Good luck and let us know what you find. With all of us telling you to go forward and backward on CG. Could be tough getting it right.

I have one also and I love it. It has never stalled and I can slow it down to a snails pace for landing. Saito 180 up front with the battery over the fuel tank. Weighs 11.5lbs without adding any lead. 2 servos in the fuse for elevator and rudder. Best 3-D plane I've ever owned. Does all the maneuvers exceptfor a harrier, but I think it is me.

Andy

I've had a great time with Harriers tonight, mine weighs 12lbs, got a 1.6 gas up front..... I found that parachuting, then using the throttleto bring it to the centre point, then balcning everything.... worked really well, dead pleased!!

sounds good! mine should be here tommorow!!!!!!!!

Well, I've learned what I wanted to learn. The plane has a problem, or at least some do. I've been flying R/C for 40 years and done my share of competition. Normally, when I run across a design with these problems, I can it and move on.This design has received so many accolades, that made me want to try and find all of those good points some of you are talking about. I have been flying as many 1.20 size airplanes as I can build in an attempt to find one that flies like the 30-40% er's. The one or two I've found would surprise most of you. They are oldies but goodies. But the Goldberg Sukhoi and the Goldberg Bucker Jungman biplane are awesome. I f you can find a kit for the Bucker buy it and build it, you won't be disappointed. Enough of this.
steve

Anyone checked the radius on your leading edges?

Ran into the thread about this topic a few months ago. Someone suggested he check the uniformity of the leading edge radius, after pealing back the skin and carefully sanding the radius, the problem was gone.

I had my eyes on this plane, but after reading these posts, I will not buy it.

Typically for every one post about a plane's bad tendancies, there are three posts from those who are either extremely tolerant of a poorly designed plane, or just trying to convince themselves they made a good purchase, that say they never had a problem.

I have the H9 CAP 232 73" now, which I bought second hand from a scale pilot. I figured he, if anyone, could tell me of any real problems with the plane. I have only three flights on it, but I love it.

It will snap on full low rate elevator deflection, but I am thinking the low rate published is a bit high, so I am cool with it.

I am so scared to buy a new plane these days, it isn't even funny. I have been bitten once too often by a poor design.

I have had my eyes on the GP Patty, but since it seems to never be going on the shelves, I have nothing to worry about.

I am thinking of buying a GP Extra 60 sized kit. I have seen very few negative posts on it, and I think my YS 91 will power it nicely. I just hate to buy it to find Tower has made it their next month's super special. Another kit I want is the Laser Arrow Delta, but I refuse to pay $74.00 when I know Tower had them for sale at under $40.00 earlier this year.

I am in the wrong business. I need to start an online hobby store and play the same games as Tower. then, I could fly whatever I wanted. If I crash it, I could sell it in the Scratch and Dent section.

Ok, I have drifted far enough off topic I guess.

your all wrong, i got mine today!

the nicest thing ive ever seen in my life! i was drooling, my h9 edge 540 is perfect, strong and covering is tight with not 1 BUBBLE or imperfection.

my first impresion is this plane rocks! they already reinforce the firewall, they use epoxy and ca, not just some cheap glue! this is the real deal here

Hi Radfly,

Glad to hear you like your H9 Cap 232, but I have read the Cap 232 is notorious for the same problems. Before i say anything else, let me say i mean no disrespect, but the way i see it, you are flying the proof that the H9 cap is a good design, and the many others who hate that plane are proof that it is a very sensitive and unforgiving design. The best advice i have seen so far, is the wings need to be dialed in carefully, no warps, uniform radius, suitable throws.... everything needs to be right if it is going to fly right. Also i have done a little experimenting with Spoileron mixing (make your own washout), works great.

Most planes are afectionately refered to as "she" i guess it has become tradition, because these ships and planes are gracefull or something. Anyway, the Caps and Edges seem to have gone one step further, they some how managed to get the whole female personality and temperment in there too! One tiny thing wrong and your in big trouble!



Doh! Here she comes, gota go.

Steve,

I just finished reading thru this thread and I noticed no one has mentioned sealing the aileron hinge line. Have you done this?
Last summer I assembled a GP G202 ARF and it tip-stalled so badly when slowed for a landing that I was afraid to land it. I was letting a more experienced pilot land it for me and even he sometimes had trouble. I tried reflexing the ailerons without helping. I then sealed the aileron hinge-lines and Voila!! no more tip-stalling problem, gone completely. It is now a real ***** cat to land.

Just my experience....... Bob

the h9 edge manual tells you to seal all hinges

Yep, the hinge line was sealed. As mentioned above the manual says the airplane will experience flutter unless the hinge lines are sealed.
Work has been in the way so I haven't had time to work with it, but this weekend I'm going to check all the balances again and check for warps. I really think the guy who suggested different leading edge radii, probably hit the nail on the head and I am going to check for that as well.
steve

hope you fix your problem, i think im going to put in klett hinges

I went ahead and used the CYA hinges, but doubled the number they had. With the warning about flutter I wanted a little more insurance. So far after 35 fights, all is well with the hinges, and thats with very aggressive flights.
steve

I flew mine one week ago for the first time and it is just a very nice no problem flying plane.
Plane weights 14 lbs with a MDS 1.48 and 2 elevator servos in the middle.
No problems with stalling or what so ever. Comes in very nice and slow for landings.

14 pounds! with a mds 1.48 wow thats extremely heavy for such a small engine

mine is also 14 lbs...with CF gear, and a BME 44 gasser...this is dry. RTF, 2 elevator servos, etc.

u have a bme 44 in it, he has a small glow engine

I was just listing my stats for comparison, not saying his or mine is light or heavy...

Mine flys differently than when I had the Saito in it at 12 lbs.......But it is a blast....(pun intended) the wingloading is definitely off the charts, at 32oz/sq. ft.

Well, I finaly had some time to work on the Edge. Bought myself a Great Planes Balance Machine, so now I should be able to nail down that CG. After much wrestling, I discovered my CG was at the 3.5" mark. Very nose heavy. I say wrestling because the CG machine was a bit akward with a plane this size. Plus I was trying to balance up on the curve of the leading edge and the CG machine kept sliding off.
As i said before, I'm cutting everything back down to basics and starting over.Obviuosly the CG is the place to start. We'll see what happens when i move it back almost 2"
steve

i bet she'll fly like a million bucks next time you try it !!!!

I am the one that suggested checking the shape of the leading edge of the main wing. If the two sides of the wing are not identical the plane will have snap problems. I would concentrate on the main wing with this snap problem. Check these items:

Is one side of the wing twisted in relationship to the other

Make sure the leading edge of the main wing is the same on both halves.

Try and keep this plane in the 11 to 12 pound range for the best flight characteristics.

I agree, mine is 12lbs and when flying IMAC ... like a square loop, it likes to snap if you're not very careful..... in 3D it is very steady though.

i have got to bite on this one how in the heck does the shape of the leading edge have anything to do with making an airplane snap or wing tip stall?
wing loading in this main reason for stalling(overloaded) he already said the plane was way nose heavy . in turn over loading the main wing making it stall.
i just can't see how that a little bit of not shaped correctly leadding edge would give a plane this bad of a problem what the heck do you sand with to get such a perfect leading edge?
don't get me wrong here i just don't understand.