Aeroworks Extra 260 75cc Assembly

[aspicer]

I just finished mine with DA-85 and 110 Cannister and it came in at 22 lbs 8 oz. I am using CF wing tube and stab tubes as well as CF spinner. Three batteries and 7 servos.

[bodywerks]

	Quote: Originally Posted by Sevans16
	Alrighty, I am getting parts together for my first large scale gasser here. I am needing to order servo arms next. I am going with alum "some kind" double lock arms. I see in the manual it specs 1.25" for ailerons. What length do I need for the P-P rudder and elevators? So far I have the plane, DA-85, cannister set up, JR 8711 servos all around, smart-fly system, fromeco bats,????? Also trying to decide which Vess prop? Spinner? Carbon wing and stab tubes? Possible smoke set-up?

You can likely get CF tubes from Desert Aircraft. They are a distributor for PBG composites and apparently make all sorts of different sizes. However, if you add smoke, you're defeating the purpose of carbon - it's gonna be heavy anyway if you add smoke.
As for the prop and spinner. I will be running a Mejzlik 27X10TH, the boys at DA have done their homework and that is THE prop. Also, if you want to keep with the CF stuff, go with a Petemodels 4" CF spinner.

[Sevans16]

I saw a spinner on the airwild site with a profile for extras. It is alum and a 4" weighs 4.6oz?? Anyone use one of these?

OK I went to order the servo arms and now I need to know if I need an offset arm to cross the cables on the P-Pull setup??

I was debating on the smoke system? Cause of weight issues. How much weigh does it add when it is dry(not in use)?

[aspicer]

A CF prop will save you 2 oz over the Alum one but the CF props are a bit of a pain. As long as you aren't nose heavy, which you shouldn't be, Alum will be fine.

You do not want the offset arm, the cables on this plane don't cross. Also, the arm you really want is the 2.5", not the 3". With a non cross over pull pull you want the servo arm the same as the distance between the control horns on the rudder, which in the case of this plane is 2.5". I used the Airwild MLP arm and it works great.

As for smoke, I think it depends on what you are going to use the plane for. If it's an IMAC plane, I'd leave the smoke out in favor of less weight. If it's just for fun and you like the smoke, go for it.

[bodywerks]

	Quote:
	OK I went to order the servo arms and now I need to know if I need an offset arm to cross the cables on the P-Pull setup??

no.

[bodywerks]

	Quote:
	I was debating on the smoke system? Cause of weight issues. How much weigh does it add when it is dry(not in use)?

Pump is about 4 ounces, battery is 3 ounces, minimum, tank and misc. plumbing, wiring, etc. is another 5-6 ounces, so call it a tad over 3/4lb, dry. Then add another 1-1/4lb in smoke fluid and you have increased your take-off weight by at least 2 pounds over no smoke. Not to mention smoke is like cancer to wood airframes, in that it will find a way to soak into any wood it can, which just adds more weight. I won't run smoke ever again, unless it is on a 40% composite plane, where an additional couple pounds goes unnoticed.

[Hawaii]

Just got my bird! Yea! Any difference in using JTec vs. Slimline pitts style muffler with the DA 85? Also thinking about using the Flight power evo lites 2500 mah batteries (li poly). it will cost me three extra ounces when using a 3 battery setup vs. Li-ion (fromeco 2600). I already have the charging units for the li-polys. Any thoughts? Any recs on a throttle servo? Have numerous Futaba 148's floating around.

I have been using Li-polys for several years and no problems. Always Charging smart and being safe. just not sure if this is the right call in the big gas birds (1st gas bird).

Last Question. How many flights can I expect with a 3 battery setup and 5955tg's all around?

[Flatlandman]

I would guess close to ten 20 min flights with 5000 mah total capacity at about 400 mah used each flight. The ignition battery if sim to my other da will last longer than the rx batt

[mark786]

Hawaii,
As flatman says that is a lot of battery. I use a 2200 Li-po and get about ten flights and I have 5955's all around. However I fly mostly IMAC so I am not working the servos very hard. Most don't use three batteries on a plane this size. Li-po will be fine.
Can't help you with the muffler difference.
I don't know what to tell you on Throttle servo, I have been using a JR DS821 digital with great success. Some say a coreless is the best way to go and it doesn't need to be digital. It does need to be good at centering.

I just received my Graph-tech landing gear. They now have a set #1105 made specifically for this new plane. They did not have them in stock as they sent all of them to Aero-Works so now AW has them in stock. My set weigh 9.7 oz before drilling. I will get a weight of them ready to mount and the weight of stock and post later.
Mark

[bodywerks]

The stock gear weighs a tad over 13 ounces, almost 13.5 if I remember correctly and the gear cover weighs an ounce. You might as well not use the gear cover since you'd have to hack it all up to fit anyway.

[zzw26n]

	Quote: Originally Posted by mark786
	Hawaii, As flatman says that is a lot of battery. I use a 2200 Li-po and get about ten flights and I have 5955's all around. However I fly mostly IMAC so I am not working the servos very hard. Most don't use three batteries on a plane this size. Li-po will be fine. Can't help you with the muffler difference. I don't know what to tell you on Throttle servo, I have been using a JR DS821 digital with great success. Some say a coreless is the best way to go and it doesn't need to be digital. It does need to be good at centering. I just received my Graph-tech landing gear. They now have a set #1105 made specifically for this new plane. They did not have them in stock as they sent all of them to Aero-Works so now AW has them in stock. My set weigh 9.7 oz before drilling. I will get a weight of them ready to mount and the weight of stock and post later. Mark

Mark,

Did you use one or two servo's (HS-5955's) on your Rudder? 3" Straight Arm for the Rudder and cables straight back?

Thanks, Ward

[mark786]

Hey Ward,
I am using just one 5955 on the rudder and am using a small arm with pull-pull. I think it is 2.5" and yes the cables are straight not crossed.

The stock gear weighs 13.1 oz the new graph-tech are 9.7 oz un-drilled.
Body, it looks like the cover will fit without modification. The new gear matches almost exactly.

Mark

[bodywerks]

Cool. Because of the 4D weave on the CF gear, I had to modify the cover on my 35% 260. It is a nice looking addition to the fuse, but I think I am going to leave it off of my plane just to save the ounce. In addition to that, I have already cut about 7 ounces out of the hatch and fuse.

[Hawaii]

Thanks on the Battery and throttle servo feedback. Here is my contribution.
Just found out JTEC makes 2 different size pitts style mufflers for the 85. I ordered the larger muffler. Expect the DA85 to be a little quieter without a noticeable power loss. I don't know much at all, so take that last comment with a grain of salt.

Should have the bird running in about a week. Let you know what the guys/gals at the field think after a few runs.

Need to order directly from JTEC for the larger muffler. Have not seen anywhere else.

[Hawaii]

Mark! How many milli-amps are you putting back into your 2200 pack after ten flights or so?