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WACO YMF

Old 12-06-2014, 10:05 AM
  #17801  
Stickbuilder
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Originally Posted by lovehydro
What is going on??????? You said you were sending the drawings October, I ask about were they are in November, with no response, it is now December, still no drawings. I went through this aprox. a 11/2 years ago with no responses'. I learned you were sick, OK, but here we are again, I see you on this thread but I can't get any response. Please let me know what is is going on. Are you for really or one of those that just wright on blogs? I don't mean to be insulting, however I think it is vary disrespectful to continually to say you are going to do something but never do it and don't even respond. I don't understand???
Expected delivery date is 12/9/14 USPS tracking. # 9114 9999 4423 8421 3812 87. For someone who is getting something free, you sure are pushy as well as insulting.

Bill, Waco Brother #1
Old 12-06-2014, 10:24 AM
  #17802  
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He's not talking about a Waco. I scratch built a set of wings for the Byron Ryan STA and promised him a drawing for them. I hadn't felt like going and getting a tube and making a trip to the post office, due to the multiple Cancer surgical procedures. Last one was 3 weeks ago, and another one is on 12/22. Hopefully he never has to experience that. I went out and did it this morning. He should have them on Tuesday. Sorry for this rolling over to this thread.

Bill, Waco Brother #1
Old 12-06-2014, 10:39 AM
  #17803  
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Water under the bridge. Who's got something waco related for us? George? Have you started on yours yet? Will you be incorporating any of the modifications found in this thread? My waco has sat untouched for some time now, but will soon be getting back to work on it and hopefully finishing it up for years of flying enjoyment. Please, back to wacos.
Old 12-06-2014, 11:24 AM
  #17804  
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Hey Steve,
Yes I started got 8 ribs in place,I do plan on doing some mods landing gear, and as much scale as I can.


George
Waco Brotherhood #5

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Old 12-06-2014, 12:17 PM
  #17805  
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I posts this back on 12/1 but it was probably lost in the recent exchange of emails. Thanks.


Hello All:


I have been interested in this plane for some time and after researching the GP ARF, and several of the kits, I just purchased an original Platt Pica 1/6 scale kit this weekend. Hopefully, this now qualifies me to be eligible to become a member of the Waco Brotherhood.


i have just recently got involved with this hobby and am enjoying it immensely. I have only built one kit and assembled several ARFs, so I realize this kit will be a bit of a challenge, but I am hoping that with a little help from the brotherhood I will be able to get through it and enjoy this great looking plane. I have read through the 50 page manual several times and studied the plans, so I think I get most of what's involved with this build. I have also been reviewing some of this fantastic thread and am very impressed with the info, tips and amazing master class building going on. Just outstanding work!


I will be starting my build in January, and in trying to plan ahead I already have a few questions, so please bear with me if they seem pretty basic. I appreciate any help that you can offer.


Thanks, Joe
Old 12-06-2014, 12:27 PM
  #17806  
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Yea, Joe, you may have been lost in that shuffle. Let me be the first to welcome you to the brotherhood. We are here to help when you have the need and are usually a very friendly and helpful bunch. Bill will be back around and give you a number, he has been having quite a go of it lately and should be given some slack.

Welcome and post away.
Old 12-06-2014, 01:12 PM
  #17807  
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Welcome Joe. Like ace just said, you'll get a number soon. But consider yourself a waco brother.
Old 12-06-2014, 02:55 PM
  #17808  
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Thanks for the welcome. Two questions that I have with regards to the ailerons setup. I will be using two servos on the bottom wing and would like to make servo hatches. How / where should I make them? What is the best hardware arrangement for connecting the upper and lower ailerons, considering that I will have to remove the wings for transportation. Appreciate the help. Thanks.
Old 12-06-2014, 03:25 PM
  #17809  
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Slightly OT question as this concerns a 1/4 scale Stearman. (I do have a Pica 1/5 WACO which I built many years ago and flew again for the first time in probably 10 years this summer. I really enjoyed reconnecting with the plane and look forward to flying it again next year).

Anyway, a friend of mine wants to sell me the Stearman which he hasn't flown in about 7 years and which he probably only flew a few times.

I took the plane home on "consignment" and spent some considerable time cleaning it up and repairing some minor problems.

A few weeks back I had a chance to put on the bottom wing and run the engine up. It has a Brison 5.8.

I was impressed by the easy start and nice idle. But when I ran the engine up I thought I would shake the whole plane apart. As a matter of fact, some pieces of the dummy radial did depart the plane, and some undersize servo screws managed to pull out (which I replaced with larger socket heads servo screws.

I am afraid this may be a problem with this single cylinder shaker, making the plane an iffy choice.

I was wondering if anyone on this site has had experience with this engine on their bipes.

The WS on the plane is 96" and I estimate the weight at 30lbs.

Don't know if the vibrations might be damped when the top wing is on, of if the engine might have to have the timing a bit more advanced.

Won't get to try it again till the spring, so I was hoping someone might have some info.

Thanks.
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Old 12-06-2014, 04:02 PM
  #17810  
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Originally Posted by Flyrc67
Thanks for the welcome. Two questions that I have with regards to the ailerons setup. I will be using two servos on the bottom wing and would like to make servo hatches. How / where should I make them? What is the best hardware arrangement for connecting the upper and lower ailerons, considering that I will have to remove the wings for transportation. Appreciate the help. Thanks.
Go to the first page, there is a glossary of what and how. There are many different methods, that page will give you most of them to view. If you find one you think you like then ask more as to how.
Old 12-06-2014, 04:56 PM
  #17811  
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Originally Posted by Flyrc67
Thanks for the welcome. Two questions that I have with regards to the ailerons setup. I will be using two servos on the bottom wing and would like to make servo hatches. How / where should I make them? What is the best hardware arrangement for connecting the upper and lower ailerons, considering that I will have to remove the wings for transportation. Appreciate the help. Thanks.
Welcome Joe,
I'm sure there are many ways to mount servos in your wing this is how I did mine works well. Hope this helps a little.

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Old 12-06-2014, 06:00 PM
  #17812  
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Thanks guys, very helpful.
Old 12-06-2014, 07:31 PM
  #17813  
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emessys,
Having the top wing on and the flying wires installed should help. It sounds like you have another issue though. I have no experience with the Brison engine. I would double check the balance of the prop to start with. I would not try to fly the plane until the vibration issue is resolved IMO.

Good Luck with it.
Anthony
Old 12-07-2014, 08:01 AM
  #17814  
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Barth YMF 1/3

Took a shot at prelim. weight and balance. Was going to make up a Vanessa rig. Slick idea, and I will do it next time. But I already had a 30# postal scale so I went with weighing axles. Kind of a pain. Since scale capacity was too low for both front tires, I had to block up one main while weighing other, then reverse procedure. I lifted nose while neighbor placed block and scale under tires. Then he lifted tail to wings level and I got reading. Then got wings level weight on tail wheel. It weighed 44.6# total with 6# on tail wheel. With both front and rear weights plus wheelbase (wings level), it's easy enough to calculate the CG. It's tail heavy. Needs nose weight.

This is just preliminary. Have not bought batteries yet. Plan was to install in front cockpit, but unless they weigh like bricks, they're not far enough forward to help much. I'll probably end up like WacoNut with a wad of lead on firewall.

Mike Hopkins

Waco Brotherhood # 132
Old 12-07-2014, 08:06 AM
  #17815  
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A heavier engine would help. I like useful rather than dead weight.
Bill, Waco Brother #1.
Old 12-07-2014, 08:27 AM
  #17816  
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Bill,

You're right. There is nothing I would like more than a good radial up there. But I'm new to these big birds. Never had anything bigger than a G-62 for planes before this. I've learned a lot on this site and during the build. One is don't cut any corners like I did in buying a NIB Evolution/MVVS 152 engine for $600.

Thanks,

Mike Hopkins
Old 12-07-2014, 08:55 AM
  #17817  
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Originally Posted by WacoNut
emessys,
Having the top wing on and the flying wires installed should help. It sounds like you have another issue though. I have no experience with the Brison engine. I would double check the balance of the prop to start with. I would not try to fly the plane until the vibration issue is resolved IMO.

Good Luck with it.
Anthony
Prop balance has been checked.

I was hoping someone on the forum has direct experience with this engine in conjunction with a somewhat equivalent size/weight Bipe. Research has told me that the 5.8 is known as a "shaker".

My next step, now that all has been fixed and tightened, will be to wait for good weather, put the whole plane together (it takes quite a while to do) and re-run the engine and see if the situation has improved. Possibly experiment a bit with the timing (advance it a bit more).

If the situation hasn't improved, I guess the cleaned/repaired and improved plane, sadly, will be returned to my buddy.

Ira
Old 12-07-2014, 11:51 AM
  #17818  
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Flyrc67, welcome, as well.

I had my 1/6 Pica nearly completed and was stupid enough to sell it. If this is only your second kit would recommend taking your time. Even with years of experience found Picas a bit of a challenge, mostly due to the much higher parts count for each assembly.

On the 1/6 and my current 1/5 I had modded each lower wing to accept a setup identical to mrdhud. If the panel and mounting plate it bolts to, (the part bonded to the wing) made from lite ply they are more than strong enough for both upper and lower ailerons. The forward edge of my mounting frames bonded to the back of the spars so there was added structural strength if required.

Just ensure you have a servo of at least 50 oz/in if wanting to wring it out a bit later. I used HS-625's simply as they were handy.

If you think the flat servo panel not aesthetically pleasing you can add a layer of balsa to the outside and sand it to follow the contour of the rest of the wing.


It will be a lot easier to mod the wing while building. On my 1/5 the wing had the original central servo and bellcrank arrangement installed at time of purchase and was a pain to update.
Old 12-07-2014, 12:46 PM
  #17819  
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Thanks Cougar 429, I was wondering about the sevo torque requirements. Yes, I plan on taking my time with it...it's a long term build in my mind at this time.
Old 12-07-2014, 03:59 PM
  #17820  
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Flyrc67,
If you go to this link you can down load the revised manual the Brotherhood put together it covers some key parts of the build that you can improve on.

http://mrdhud.wix.com/classicair#!
Old 12-07-2014, 07:18 PM
  #17821  
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Thanks, I'll certainly do that. Appreciate it!
Old 12-08-2014, 03:08 AM
  #17822  
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Originally Posted by emessys
Prop balance has been checked.

I was hoping someone on the forum has direct experience with this engine in conjunction with a somewhat equivalent size/weight Bipe. Research has told me that the 5.8 is known as a "shaker".

My next step, now that all has been fixed and tightened, will be to wait for good weather, put the whole plane together (it takes quite a while to do) and re-run the engine and see if the situation has improved. Possibly experiment a bit with the timing (advance it a bit more).

If the situation hasn't improved, I guess the cleaned/repaired and improved plane, sadly, will be returned to my buddy.

Ira
Try some rubber isolation mounts.
Old 12-08-2014, 03:16 AM
  #17823  
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I had 2 of the smaller Pica Waco kits years ago, it is always in the back of mind to build a larger one, although by larger I think I would want about 1/4 scale. Might have to reinvest in some plans.
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Old 12-09-2014, 07:46 AM
  #17824  
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Hi guys:

I have read through the sections on ailerons and still have questions regarding what might be the best hardware arrangement to use for joining the upper and lower ailerons, considering that I will have to remove the wings for transportation. Also, where do you place the joining rod between the upper and lower? Is it in line with the servo pushrod or is it offset?

On another note, what is the best engine size for the 1/6 scale, 91 or 100? I'm thinking Saito 91, but since I haven't purchased it yet I'm still open on it.

As always I appreciate the help. Thanks.
Old 12-09-2014, 01:45 PM
  #17825  
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Pictures of Barth 1/3 Engine install. It wasn't easy. First photo is Horizon 152GX with rear carb. It has been withdrawn and no longer available. Second and third photos show an early build of Barth 1/3 in Europe where modeler built a bridge style engine mount to clear carb linkage, etc. Fourth , fifth, and sixth were my attempt at standoffs that needed to clear throttle, choke linkage and fuel inlet. It was kinda Rube Goldberg and I abandoned it. WacoNut advised me standoffs not recommended for his engine. Seventh and eight are a box I developed in place of standoffs plus a mechanism to work throttle and choke.Last photo is new MVSS 152 available in Europe(earlier version identical to Horizon 152GX). It has been redesigned with a bottom mounted carb. Much cleaner design.I am done grumbling about this. It is a horrible design and a nightmare to package. I now hope it runs well.

Mike Hopkins
Waco # 132
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Last edited by hopkimf; 12-09-2014 at 02:02 PM.

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