30% Yak54 D.A. 50R

[devin]

Hi guys, I've been looking around and so far I've seen some popular yak's out there with pro's and con's. I want to buy, before the winter is over, a Yak54 that a NEW D.A.50R can pull real well. I've seen the AM models yak, QQ NEW 86"(not the 85") yak, Aero-tech yak, Aeroworks Q.B. yak, and some other ones. If you have any of these, or know alot about them, please tell me the pros and cons of them. I'm planning to have JR 8611's all around, but have no clue regarding pipes, mufflers, cans. I really don't know what these do. LOL. Please help, thnx.

Devin.

[PLANKBONE]

Aeroworks QB. enough said!

[caurimare]

Well I have The AM/TOC yak and it is rock solid for 3D if thats what you want to do, mine came out to 17 lbs with a da50 and performance is perferct, I run it with standar mufflers I really would not use any other muffler for a 50cc. as far of the other ones you mention I would only consider the new QQ but that is if you want to wait until feb/march of next year.

[Supermod56]

Dunno on the YAK, but with the DA Fitty you have several choices for mufflers. Slimline Pitts (Loud), stock DA (Deafening), or a can/tuned pipe I have a MTW75 for mine, haven't ran it yet, but they are real quiet, hard to fit in a lotta planes, so check with the plane manufacturer first. Troy Built has a great selection of stuff for DA's
Tom

[casey g]

i dont no much about aerotech sepfor they will have this scheme i did for a option so if u like the scheme go with the aerotech
the scheme does not have the x'es on the botem of the fuss it looks better with out
here is a link to the three view
http://www.flyinggiants.com/gallery/...php?photo=7444

and here is a link to a pic where i drew it on a plane http://www.flyinggiants.com/forums/f...ht=guys+scheme

[devin]

O.K. guys, I need to know what cans/tuned pipes do before I go investing in them. I think they just make it quieter. If this is true, well then, ok, but do you lose performance? Do you gain performance? And about the aircraft. I'm not to worried about the fitting of the cans. Both the aeroworks yak and the new QQ yak have space for them to fit in. I still want to know how these planes fly. Does anyone have the Aeroworks, QQ, or AM yak?

[luv2flyguy]

Devin- I am currently building an AM 30% Yak with DA-50 and I will tell you it is a great plane. A friend of mine has one and flies it at our local field and it flies like a dream. I also have a friend with the Aeroworks 50cc Yak with a BME 50cc in it and this plane is a very good plane also, mind you that the Aeroworks will go together a little faster than the AM but I think if I had to choose I would choose the AM because of the flight characterstics. The AM is also a bit larger plane and seems to be a little more stable at slow speeds. However this is just what I have experienced, both are great planes and you can't go wrong with either one. Also on one final note, you can find a lot of info on the Troybuilt website about all the planes you are looking at, Gene Payson and Bill Hatcher give great insite to them all and they are more than willing to help in any way they can. Hope this helps you.
Merry Christmas and God Bless

[ChrisR]

I have an AM yak, DA50 w/ standard muffler.... great plane, awesome for 3D, rock solid in everything. Assembly was easy too.

I don't think you can go wrong with any of the 50cc planes around now.

[Kitman]

By far the Ultra RC 50cc Yak 15.5 lbs with a DA 50 and Std muffler, it has a pipe tunnel if you choose!! Look at the plane and the site!! Never disappointed, I am building one for this site and Fly RC.

[devin]

	Quote: Originally Posted by devin
	O.K. guys, I need to know what cans/tuned pipes do before I go investing in them. I think they just make it quieter. If this is true, well then, ok, but do you lose performance? Do you gain performance?

Can someone answer this question?

[Fudman]

you will get a little more rpms with pipes(and maybe cans 2 I don't remember) but given that, its more weight. so IMO its not Worth the extra money unless your club has a noise problem.

as far as the yaks go all are good just pic the one that looks best to you.

[ddlstang]

Tuned pipes will make more power BUT it wont be a smooth transition of power ( When it comes up on the pipe ) and it will quieten up a little. Cans MAY make a few more rpm but generally make your transitions smoother in power application.

Stay within the weight on the 50cc planes and dont over prop it.

I have the TOC 30% and it fly's very good but it is 19lb's ( there seems to be a large variance in these arfs at reality weights ), will 3d hard and I flew IMAC with it also. I have flown other makes of 50cc planes that weigh in the 15lb area and there is a huge difference. Weight matters on these smaller planes.

[Mack]

how would a evolution 45gx2 with bisson inverted pitts preform on this!!

please email me at urbonas_3@msn.com

[bodywerks]

	Quote: Originally Posted by devin
	Can someone answer this question?

If weight is an issue (always is for me) and noise is not, then the stock muffler is your VERY best choice, and it is very simple to install.
If you have issues with noise, your only two options would be the MTW75 cannister or KS 1060 (i believe) tuned pipe. The advantage of the cannister is that it is quiet, and that is about it. It is heavier than stock by almost 1/2 pound after adding the header, couplers, mounting accessories, etc., and typically DOES NOT improve RPM enough to be worth the extra weight. The advantage of a full length tuned pipe is GOBS more power (if you know how to set up a pipe). Disadvantage is almost an extra pound of weight over a stock muffler, it is difficult to install if the plane wasn't designed for it, it is a little louder than a cannister, CG will likely be an issue since the majority of the pipe is aft of the CG, and they can be a pain to set up properly to get the best power out of them while maintaining a good throttle curve.
If you are a scale buff and have no concerns for weight, noise, performance, etc., then go with a pitts-style muffler. They are a good 5 ounces, minimum, heavier than stock, definitely will not improve performance over stock (but might rob you of 100-200RPM), are not much quieter than stock, are more expensive than stock, and, IMO, are pretty much a glorified paperweight.
Personally, I would use the stock muffler regardless of how it hacks up the cowl, although a big enough plane should have a big enough cowl.
As for which Yak, if you want absolutely no problems with how a DA-50 will pull it, then the Ultra RC Yak is THE choice. At sealevel, though, the DA is good enough to pull almost 18 pounds out of a hover, in which case quality and quickness of assembly goes to the Aeroworks Yak. Don't know much about the AM Yak but haven't heard complaints. I do know that they are typically available in several different schemes which is definitely an advantage.
Personally, I would be absolutely sure to stay away from the GP Yak (too small), the CG Yak (too small), and the Lanier Yak (too heavy). I have also seen reports of the Aerotech coming in at 19+ pounds, too, but that could have been a fluke.

[bodywerks]

	Quote: Originally Posted by Mack
	how would a evolution 45gx2 with bisson inverted pitts preform on this!! please email me at urbonas_3@msn.com

The 45gx2 weighs as much as the DA and has less power (swings a 1"smaller prop at a lower RPM than the DA), plus, if you leave the Bisson muffler stock, it will rob an additional 200+ RPM off the top.