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Matt Chapman cap 580 .40 size

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Old 02-21-2005, 06:30 PM
  #301  
ifixairplanes
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Default RE: Matt Chapman cap 580 .40 size

Diamonddave: This plane will not hover or fly at all like a UCD. If you want 3d, get a UCD. I am sure this plane will 3d, but not like the UCD can 3d. Not to say this plane dosn't fly as good as the UCD, they just each have their own flight envelopes. Don't think a UCD will tumble as crisp as the CAP.

Loopman: Next time I opt to use CA hinges I will give that stuff a try, thanks.

a harder than normal bump on landing may have caused undue load on the tailwheel/rudder and the shock may have caught the hinges in just the right attitude to crack them leading to failure once you put the plane thru the paces.
Well, whatever it was, it's fixed. I installed 3 Robart hinges. I am just thankful she isn't smashed, yet.
Anyone interested in the robart hinge method, it's very easy. RCU magazine has a great how to for installing Robart hinge points. Even a great video to show you what they explain in the text.

Sean
Old 02-21-2005, 06:52 PM
  #302  
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Default RE: Matt Chapman cap 580 .40 size

thanks for the info, we'll see what i do, i already have a couple 3d planes, so i could just get this to have fun with, life is full of important decisions
Old 02-21-2005, 08:40 PM
  #303  
jimmyjoe
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Default RE: Matt Chapman cap 580 .40 size

Is everyone finding the throws on low rates enough for the elevator? I know that the elevator surfaces are fairly large but 1/2" or 5/8" just doesn't seem to be enough for me, but I will go ahead and take advise, please.,
Old 02-21-2005, 08:45 PM
  #304  
Derek8819
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Default RE: Matt Chapman cap 580 .40 size

I set all my throws to 120% on my 6EXA and the plane flying great. be careful the ailerons are really touchy. I love the way this bird flys. i musta had 5 people ask to take pictures of mine at the field. Everyone loved it!!
Old 02-21-2005, 08:53 PM
  #305  
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Default RE: Matt Chapman cap 580 .40 size

I have set up triple rates on my CAP. They are as follows:

1. Max 100% deflection available on ALL surfaces. This is my low speed rates. Doing stuff like rolling circles, waterfalls, lowspeed tumble, flat spin, ect. Aileron and elevator also have -55% expo (Futaba) at this rate. (still experimenting with expos)
2. All surfaces 60% deflection. This is my taxing, landing, takeing off, general fly around rate. No expo
3. All surfaces 30% deflection. This rate is great for precision flying. Loops, point rolls, etc.

I don't use the throws in the book.

On the topic of radio setup: Anyone using any mixing?
I set up snap spoilerons for waterfalls and also have set up flaperons. I have yet to use either mix though, been to busy getting the "feel" of my CAP.

Sean
Old 02-21-2005, 09:40 PM
  #306  
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Default RE: Matt Chapman cap 580 .40 size

Can someone point me to the article on the robart hinge point installation? Thanks again! Kevin
Old 02-21-2005, 10:06 PM
  #307  
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Default RE: Matt Chapman cap 580 .40 size

Here ya go cadconversions:
http://www.rcuniverse.com/magazine/a...article_id=269

The link to the vid. is on that page too. Right before I installed them I reviewed the video and then had at it. It wasn't nearly as tedious as I thought it would be. Just gotta get those holes drilled right. I used an extra set of eyes to keep the drill straight.

Sean
Old 02-21-2005, 11:28 PM
  #308  
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Default RE: Matt Chapman cap 580 .40 size

I have a Saito 82 coming from Horizon, but I am going to have to cut the cowl for the valve covers. Are there any two strokes that will hover this plane. I would love to keep the cowl clean on this plane. I would guess a 61FX would be marginal. How about a GMS 76 or a Tower 75 ? I have never owned a 2 stroke glow motor. Only Saitos and a DA 50. Any suggestions?
Old 02-22-2005, 12:00 AM
  #309  
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Default RE: Matt Chapman cap 580 .40 size

the specs on that gms76 look really good, i have been really close to getting one myself, i have had os 2 strokes, a 91 and a 108, love em both, i would think that 76 would be good for this size plane
Old 02-22-2005, 03:13 AM
  #310  
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Default RE: Matt Chapman cap 580 .40 size

Thanks for the link Sean.
Old 02-22-2005, 06:20 PM
  #311  
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Default RE: Matt Chapman cap 580 .40 size

I appreciate everyone's input on the % of throw on your surfaces! However, actual throws in mm or inches would be greatly appreciated. I just think 3/8 on U for Elev. is really off?
Old 02-22-2005, 10:03 PM
  #312  
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Default RE: Matt Chapman cap 580 .40 size

Just measured my low rates. I have 7/8" up/down. A wee bit higher than recommended. Infact I use a higher rate for landing and takeoff. My highest rate elevator gives me 2 1/8" up/down. That is my "3d" rates. I have done takeoff and landing on the high rate with no problem.

Sean
Old 02-23-2005, 06:30 PM
  #313  
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Default RE: Matt Chapman cap 580 .40 size

Hey , just thought I'd jump in & give my two cents. I had all the same problems as everyone else including the tail wheel. For the cowling I set the graphics with the engine set in the mount , not drilled or bolted , mounted the cowling. Then went back & set the engine to the cowling. For the routing of the exhaust , I made a trough in line with the exhaust to the opening in the cowling. You loose only a small portion of the firewall , and this shouldn't effect the structure. I then formed some 1/32 ply around my silencer/muffler & then glued it in the opening I had made. This adds back to the structure and keeps the fuel residue out of my plane. I finished mine two weeks ago: My engine is the OS 70 FS , servos used were Fut 3004's, Bat a 1200 mah 6v NiMH & the radio is an older Fut 7UAP. My wt on a fishing scale came out to 6.5 lbs. Haven't flown yet, have to break the OS in. I hope some of my fixes help the next cap owner. Spud 37 out
Old 02-23-2005, 07:01 PM
  #314  
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Default RE: Matt Chapman cap 580 .40 size

Why do you buy an OS 61 when the 91 is the SAME Engine with the exact same bolting pattern, just a little more Money. I still thing the 61 Fx is a disapointment.....i can get more power with the 91 and add only a couple ounces....Your choice however, i like the extra power, but I rarely use it, and when you do use it, WOW!! Good luck,
Nealio
Old 02-23-2005, 10:13 PM
  #315  
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Default RE: Matt Chapman cap 580 .40 size

You have better throttle resolution using a smaller motor that isn't so overpowered. Why not strap my MVVS 1.6 gasser on the front of the plane? It only weighs a few oz more than a 1.2 4-stroke...how about a Saito 1.80...now that's power....

You see, that can go on, and on, and on. I for one love flying planes with more than enough power (2:1 thrust to weight ratio on my latest electric balsa kit build) but there is such a thing as too much IMHO for a glow plane.

Anyone got a 15lb turbine I could borrow?
Old 02-23-2005, 10:52 PM
  #316  
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Default RE: Matt Chapman cap 580 .40 size

I am at the point were I have to pick a engine. A Saito 82 or a GWS 76 with a pitts muffler. The Saito 82 would be unbelievable on this plane, but for some reason I don't want to cut up the cowl. Which one should I go with?
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Old 02-23-2005, 11:33 PM
  #317  
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Default RE: Matt Chapman cap 580 .40 size

If you decide you want to go with the GMS .76 Ihave a used one that came on a US 60 that I'm not using. Could probably sale it worth the money. I'll have to make sure with the other guy that was to get the motor first.
Old 02-24-2005, 12:54 AM
  #318  
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Default RE: Matt Chapman cap 580 .40 size

The Dak,

Where do you live in Pittsburgh? I moved to SC from Irwin area in '88 and get a little homesick once in a while....

Steve Dunster
Old 02-24-2005, 07:26 AM
  #319  
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Default RE: Matt Chapman cap 580 .40 size

I am listening to everyone talk about the Saito's and the OS's, but whatta about the YS 63 S. I am a long time Saito fan and customer however this YS is going to be the right fit.

Reason Number

1. Not going to have to cut the cowl to put the motor in

2. Smaller dimensionally than any othe engine of it's range

3. The power of a Saito 82

4. The known torque of the YS engine period!


ORIGINAL: thedak

I am at the point were I have to pick a engine. A Saito 82 or a GWS 76 with a pitts muffler. The Saito 82 would be unbelievable on this plane, but for some reason I don't want to cut up the cowl. Which one should I go with?
Old 02-24-2005, 08:39 AM
  #320  
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Default RE: Matt Chapman cap 580 .40 size

OK.... most of you know I put a saito 100 on mine.... I mounted it inverted and I am using a 90 degree adapter and a flex muffler from horizon.. it goes right out the bottom of the cowl. The only cuts I made in the cowl were two in the bottom for the valve covers and two holes for the high end and low end..that was it. I used a remote glow and fuel fill....I will take some pictures tonight and post them.

John
Old 02-24-2005, 09:58 AM
  #321  
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Default RE: Matt Chapman cap 580 .40 size

I'm looking forward to thise pics Blenderbender. How is the low speed with the 100? What weight did your plane come out to? sorry if you already answered these.

Jimmyjoe: I am eager to hear about the performance with the YS 63. I think it will be a great choice for this plane. Keep us updated!

Sean
Old 02-24-2005, 11:34 AM
  #322  
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Default RE: Matt Chapman cap 580 .40 size

Blenderbender,

What is the part number for the flex muff? Will this engine run without a tap? I have this plane and am thinking about the saito 100.

Chuck
Old 02-24-2005, 12:08 PM
  #323  
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Default RE: Matt Chapman cap 580 .40 size

Chuck,


Muffler, Right Angle Adaptor: Y [SAI100TI140]
by SAITO ENGINES in Replacement Engine Parts: Air/Heli

I think this is the correct part .... my advise is to call to make sure. And the flex muffler has a pressure tap.

John
Old 02-24-2005, 12:11 PM
  #324  
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Default RE: Matt Chapman cap 580 .40 size

Well I am now at 50 flights on this plane and all I can say is, Incredible!! This bird has become my favorite in the hanger. The OS ultimate .70 with a master airscrew 12X6 3 blade is a perfect match. If you want to fly this bird scale with all the power you need for scale aerobatics this is the hookup. My second CAP 580 will have the same power but I will set the cowl up a bit different. Virtually no valve cover should show on this next setup, as it will only require a small slot for the head and as it is the same color as the blue on the cowl it will be almost invisible. The only other cuts are a slot for the high and low adjustment, as they are both on the same side and a small exit for the exhaust deflector which is cut 1/2 inch after the turn. I don't hover this plane, just scale maneuvers and all I can say is this bird still is surprising me with what it can do.
Old 02-24-2005, 12:51 PM
  #325  
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Default RE: Matt Chapman cap 580 .40 size

Great to hear Dajenson. How do you like the tumbles? This plane is the best tumbler I have flown!

Sean


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