Just received the kit - very nice -
I am putting my 100 ZDZNG in it
The engine works very well in the WH 330 so in this one, it should be a hoot.
It is a fair bit smaller than the WH-2100 squares -vs 1800 on the H9.
Just thot I would see how it works -----

Dick,
I should be getting my H9 33% Extra within the next couple of days. I was looking to ask someone with this plane a few questions.
Does the plane come with dual rudder servo cutouts that are ALREADY cut out? Am I going to have to cover them up if I don't use dual rudder servos in the tail? I am planning on using a pull pull up front with the ZDZ 80.
Does plane come with a tailwheel? Is it junk?
Thanks.

the servo cutouts are all in place (4) at the rear. the covering is white there- so easy patch job.
I would have used a ZDZ80 as I have done a few of them for me and others and it is in all honesty - the best setup - light simple and cheap and pulenty of power. even on the in cowl muffler
a local friend flies one very competitively in Advanced IMAC.
On a tuned can - they are killer good .
No tailwheel hardware - and I really recommend the non scale DuBro simple bracket and wire plus a firm plastic hub small rubber tailwheel.
I got the hardware kit - with the scale tailwhel - may /may not use it ---
I am also using 4, JR 811 servos in the wings - cheap as hell and work great. I have done this on customers Sukhoi's and they work great.
I will use 8411SA on the rest of the servo points.
A friend just returned from flying his new Ultimate we asembled -and one wing panel suddenly went into full deflection - and smoked two HiTechs -
He had used a Y harness and apparantly they don't like that. (he called Hi Tech and they said that .)
I watched him setup all the sevos with a HiTech setup thingy and they were all quiet --
we uses a double tree setup on his rudder so it is impossible for servos to fight .
I absolutely hate precision servos grouped solidly together - If one servo goes south , all of the others locked in the linkage will also go up in smoke .
Fact not fantasy.

Thanks Dick,
Can you tell me why you recommend the Dubro tailwheel?
Also being that you have built a couple of these ARF's w/ZDZ80's, could you tell me what length standoffs I need for the engine? Thanks.

(quote )A friend just returned from flying his new Ultimate we asembled -and one wing panel suddenly went into full deflection - and smoked two HiTechs -
He had used a Y harness and apparantly they don't like that. (he called Hi Tech and they said that .)
I watched him setup all the sevos with a HiTech setup thingy and they were all quiet --
we uses a double tree setup on his rudder so it is impossible for servos to fight .
I absolutely hate precision servos grouped solidly together - If one servo goes south , all of the others locked in the linkage will also go up in smoke .
Fact not fantasy.( quote )


WOW!!!! That's weird i have a friend that HITEC'S on a y-harness has 75 flights and no problems as of yet

Hey Dick what series of hitec's are that he has on hes plane???

brand spanking newest and the most torque highest etc..

Hitec 5945s?

Hmmm.... I also know of a few people, (and myself), with Hitec Digitals on Y harnesses. No problems here either.

I have been running 5645's and 5945's with Y's on a plane for quite some time with no problems... Only time I have ever had an issue with Y harnesses is with a JR Y using 6V. I have had the board in the Y harnes burn out several times.

Guys,
Could someone please recommend a good HEAVY DUTY Y harness for me to use? Thanks.
Also, does anyone make a Y harness that is also a LONG servo extension itself? If so, this would eliminate a plug in between the servo and the Rx for my dual aileron servos.

MPI

For a good heavy duty y harness,the best of the best is Do it your self
20 awg.

Mr Hanson,when you finish your H9 330 proyect i like to know your final weight.

Thanks
Oscar Silfa

Dick,
Was wondering what you did to beef the engine box up. Did you keep the stock angled aluminum bracket?
Also, this sounds dumb, I know, but this is my first Extra, and I was wondering which way the landing gear mounted? Do they angle back, or forward? I can't really tell!

Paul, my Extra's engine box came loose after 50 flights, so I pinned it with dowels in addition to the metal brackets. The landing gear goes forward.

Thanks Ryan..

beef up? just close the top of the box with any epoxied plate -then I will cut out all the centers of the plates including the engine mount plate.
and make a 1/16" thick balsa cover at the hole in the rear as a "firewall.
I also use 1/2 birch dowels for the engine standoffs - which I epoxy in place and add little triangular gussets - lite and cheap .
We ain't mounting a Buda Diesel- the trick is to triangulate the ply pieces and keep all joints solidly glued -
as for the long Y harnesses - Ifyou can solder - do this: make yer own - using a twisted and soldered joint AND shrink tube insulation, on each joint.
look at how it is done by others ----
Two soldered, insulated connections , lay alongside the single leg of the Y, which goes to the Rx. Do some looking at how it can be best arranged for a neat bundle
When you slip on the shrink sleeve for the final assy - it will all look smooth -
and now you be a soldering expert!
and no more overpriced Y connectors which are the wrong length anyway -

Hey Dick, (and others),
How is everyone's plane balancing with the ZDZ80? Did you guys use dual rudder servos in the tail? Or pull pull up front?
I think one guy told me that he used the dual servos in the tail, but the batteries were all in the engine box. I hate that.
Thanks fellas.

Paul,
I don't have this plane...yet. With a ZDZ80, I think I would go with a pull-pull on the rudder. You can always move the batteries around if needed. With dual rudder servos in the tail and a light engine your options might be limited if it's tail heavy. Again, I don't have this plane so this would probably be my approach if I did. Hope Santa is reading this.

Hi Guys almost done waiting on another pipe the 1080 tune pipe is a little long for this plane so I have a KS 89 coming I had to mount the rudder servo right behind the wing tube and mount the batteries on the motor box to get it to balance. I have never run in to any interference problem with this type of set up. Won't know for sure until I get my pipe mounted but so far it should come out right at 23lbs. Mark,

cubdriver,
Do you think your rudder servo will be ok the way it is mounted? I was thinking of doing the same install as you, w/ my 5735, but it seemed that there would be a LOT of flexing going on, where the servo mounting rails you made attach to the fuse. (Thin plywood where your servo mounting rails glue to) Did you do anything under there to beef it up?
Also, does the ZDZ80 stick out of the cowl at all? It doesn't appear to.

Keep the pics coming! Look forward to pics of the pipe! Thanks.

Hi Paul The rudder servo doesn't flex at all it is mounted on basswood rails seems to be plenty strong I didn't reinforce the fuse any other than some extra glue.To get all the power out of the 5735 I have it Y'ed in with my extra battery.I did cut the cowl out for a little bit of extra cooling and keep the spark plug cap from rubbing.Hopfuly the pipe will be here next week I am going to paint it with a thin coat of red heat resistant engine paint to help it blend in a little better. Mark,

Thanks Mark,
Maybe you didn't quite understand my question pertaining to the rudder servo rails. BUT, then again, MAYBE you did! Let me try this again:
The basswood rails that YOU added, are plenty strong, I"M SURE.
However, I was just wondering if the thin ply of the fuse where the basswood rails are glued, was flexing, when the servo operates. Basically, it just seems that there was really nowhere in the plane to mount the basswood rails, that was very "solid".
Hope that makes more sense. Anyway, good luck with your project, and look forward to seeing yours completed.
P.S. Are those Sullivan Skylite's w/ aluminum hubs? I'm still trying to decide on some wheels. Wish there were more options out there.

Hey Paul Where the rails mount is plenty strong just a little glue added at joints. Yes the wheels are sullivan's but I will be running cb taton wheels they seem to be the best for these big plane flying off the pavement and I think I have tried all of them. But they are set up for 1/4" axles so you have to space them. Mark,

FWIW....I just flew one (H9 33% Extra) today with the servos in the stock locations (4 in the tail) and a ZDZ 80 with an in-cowl pitts muffler up front.....not at all tail heavy...in fact a little nose heavy.....I own the H9 33% Cap with this same setup (engine and servo) and have my 2 reciever batteries (2700 NiMh) at the rear edge of the canopy, and it balances OK for my kind of flying (actually a rear CG).....FWIW