I am hoping that someone out there will have an idea of what engines will go into the Hanger 9 33% sukoi without having to cut the cowling.I am thinking of a BME 102,105 or a ZDZ 120 or 80single or 80 twin.Any help would be apreciated.

Go to my website and watch my H9 33% Cap's performace with a ZDZ 80 single.
The Sukhoi has the same perfomance with this motor.

www.rcsites.net/wgeffon

Message recieved!!!! But(and theres always a but!!) I want smoke fluid onboard. Are there things I can do besides a smaller engine,which I think was your point, to make the sukoi lighter.

All that hovering is done at what percentage of engine power roughly?

1/3 power to hover and TR.
My point was basically saying that the 100cc motors arent needed. Sure they fly the plane well and they hover just over idle but why add the extra weight?

People will tell you that the Suk needs noseweight. It doesnt from what I've seen. My buddy has one with a 80 in it. No lead and its fine.

I have a sukhoi with a ZDZ80, look in the giant forum, and do a search, I had to add 1.5lbs of dead weight to get it to balance 1" behind the rear of the tube... I have smoke on it too.

FWIW, the 80 is good power, it will hover no problem...but if your at high elevation I think it would be margional, especailly in summer temps... If you can afford it put a 100 twin on it! Mine is getting a twin this year... .02

Now I'm not sure what to believe on the balance issue. Two differing views on balance hmmmmmm but I'm glad you mentioned the power thanks. What is the minimum hitec servo you would put on each of the surfaces(I like Hitec-cheap) and I'd listen to anything anyone has to suggest to me as far as what to put on it and how to set things up. thanks guys

a servo with at least 90 oz of power each, I would not go cheap on a $3000 plane...but thats me..

Go with Hitec digital servos. I belive one of the numbers is a 5925
or 5945. Metal gears. High speeds, especially at 6 volts. Great resolution and holding power. Best yet, low comparable prices.

Don't go low budget with a plane of this size and weight. The risk is too high. Both in dollar amounts and spectator safety. Analogs are for smaller, less demanding situations.

You can't be serious. The JR 4721 and 2721 servos have been the standars in GS models for a long time. I have had both in 35% planes with no problems.

In fact, I have 4 4721's on my H9 Sukhoi ailerons with 8411's in the tail.

It has a BME 102 on it and you need to make a cut out for the one plug cap to stick through. A buddy of mine made a fiberglass blister for mine so that there are no holes in it now except for the mufflers.

Todd

I believe that you will be able to note that the JR 4721 and 8411 are more than a little bit superior to standard analog servos. At least I would hope so considering the price difference between them and 531's.

I would hope that there is no arguement between the superiority of metal gear trains over plastic? I have seen and experienced plastic gear trains strip with far more frequency than metal ones.

In any case, use what you can easily afford and hope for the best. You're the one who is investing your time and money. Only you can know what they are worth.

The 4721 is an analog. The 2721 is an analog. The 8411 is digital. All work fine on larger planes. No one is saying that standards are going to work well (or at all); just that digitals aren't required. There is a big difference between saying analogs or standards won't hold up to giant scale flight.

I have a Hanger 9 Sukoi w/ ZDZ 80. I don't plan to fly 3-D. I am using HiTec 645 HD Servos. Are the Heavy Duty HiTec servo arms sufficient or do I need to invest in Metal 1-1/2 Servo Arms. Comments

If you move the engine forward of the recommended position, the BME 100 class of engines will fit.
The only cut outs needed will be for the exhaust.
If you can route your exhaust under the wing, then no cut outs are needed at all.

You don't need to cut the cowl for a BME. Mine is just under 24 pounds with a 102 EVO. I have no lead in it. I have a 5 ounce Hitec 5735 in the tail. The CG in the manual is wrong. If you put in a ZDZ 80 and want to fly IMAC you may need to adjust battery location and go with pull-pull on the rudder.



Mike McConville-
[quote]The CG listed in our manual is incorrect. The correct CG location is 13/16" behind the CENTER of the
wing tube for precision flying, and approximately 1/2" to 3/4" behind that for all 3D flying. Balancing
at these locations will make the model balance much easier and should not require any nose weight
unless a very lightweight engine is used. Balancing any farther forward than the above mentioned CG
locations will result in an excessively nose heavy model.