RE: Yak 100 cc known issues  
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All Forums >> RC Airplanes >> Giant Scale Aircraft - 3D & Aerobatic >> Aero-Works Support >> RE: Yak 100 cc known issues
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RE: Yak 100 cc known issues - 8/8/2007 4:16:13 PM   
jasonjanise


 

Posts: 37
Joined: 3/26/2003
From: Norfolk, NE, USA
Status: offline 		Well, I haven't looked at the wood in a few days, but another factor is that they weakened the actual gear itself as well. When you take a big section of aluminum out of the middle, it gives the landing gear room to flex and that is I think just as much a reason mine broke. I think if the gear had no twisted, it might have just as well held together. Like a couple of guys as well as myself noted earlier, the gear is twisted right where the aluminum was removed. If that was solid as it is with the carbon fiber gear, most guys are no longer having the problem. It just seems to me that the little amount of weight that was saved by removing material from the gear would not amount to much of anything. I am more concerned with the lost of strenght. In my case, the gear twisted, for whatever reason, and when it did it pulled all of the wood with it and tore the block out.

Jason

(in reply to reyn3545)
       Post #: 26

RE: Yak 100 cc known issues - 8/8/2007 10:26:51 PM   
jon595



Posts: 426
Joined: 3/14/2002
From: Pensacola, FL, USA
Status: offline 		I have a 100cc 260, mine broke. The 3 pieces that made up the landing gear plate were not soild pieces. Each piece was actually 2 pieces of lite ply poorly glued together. Replaced with aircraft plywood. Put 2 L brackets, going front to rear, on the landing gear plate pieces going front to rear, and then to the motor box sides that are vertical. I have 6 bolts in each bracket, 3 in each plane of the L.

(in reply to jasonjanise)
       Post #: 27

RE: Yak 100 cc known issues - 8/8/2007 11:12:14 PM   
airega1



Posts: 737
Joined: 1/6/2002
From: Va Beach, VA, USA
Status: offline 		I did the same, only using maple blocks and epoxying them with 30 minute and BVM milled fibre, hope it helps

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So you can Turn and Burn

(in reply to jon595)
       Post #: 28

RE: Yak 100 cc known issues - 8/9/2007 2:31:06 AM   
jasonjanise


 

Posts: 37
Joined: 3/26/2003
From: Norfolk, NE, USA
Status: offline 		I guess I have a pretty dumb question to ask all you guys that have typed in on this thread. Have all of you or any of you called Aero-Works and told them about the issues you had with this landing gear block issue? I am hoping you are not just fixing it and getting on with things thinking "what is the point of calling them". I know a lot of guys that do not call when they have issues and if that is the case, then Aero-Works keeps thinking there is nothing wrong and the couple of us that do call look like idiots. Then, they just keep building the planes the same way because to them, nothing is wrong with the design. There gets to be a point where building bigger planes as light as we possibly can and cutting on very vital areas that need to be built strong meet at an ugly cross roads. When that happens, there are structural failures and is it worth it. Today gear blocks, what about tomorrow. It is going to be a hazard to be at the flying field before long because planes are going to breaking apart in the air for no reason than I wanted to save a little weight. I mean we all know where these planes are built and we know there must be about 0% QC because the entire ARF business is built around building the planes as cheap as possible so the companies can make a higher profit margin. That helps us the modeler none. Just sad that it keeps going down this road. Just my $.02

Jason

(in reply to airega1)
       Post #: 29

RE: Yak 100 cc known issues - 8/9/2007 2:43:14 AM   
airega1



Posts: 737
Joined: 1/6/2002
From: Va Beach, VA, USA
Status: offline 		I called Aeroworks today and was going to mention the LG failures, but everytime I asked him something he had to go ask someone else, so I didn't bother. I don't know who the guy was, it wasn't Mark or Rocco

_____________________________

Learn and Earn
So you can Turn and Burn

(in reply to jasonjanise)
       Post #: 30

RE: Yak 100 cc known issues - 8/9/2007 2:52:12 AM   
jon595



Posts: 426
Joined: 3/14/2002
From: Pensacola, FL, USA
Status: offline 		Jason,
I am not the original owner. And I ran over an "imperfection in the asphalt" while taxiing back. Calling them seemed pointless.



Mark Dennis is reading this, maybe he can chime in?

< Message edited by jon595 -- 8/9/2007 2:55:18 AM >

(in reply to airega1)
       Post #: 31

RE: Yak 100 cc known issues - 8/9/2007 2:28:57 PM   
ultra6a



Posts: 74
Joined: 9/2/2004
From: Charlotte, NC, USA
Status: offline 		My brother, who owns an 100cc Yak, called yesterday and discussed his concerns about the number of landing gear failures that owners are experiencing. He was told that on the "newer / latest" versions of the plane aluminum angle braces have been added to the landing gear area.


< Message edited by ultra6a -- 8/9/2007 2:29:46 PM >

(in reply to jasonjanise)
       Post #: 32

RE: Yak 100 cc known issues - 8/9/2007 4:15:24 PM   
talon58


 

Posts: 137
Joined: 11/18/2003
From: Eugene, OR, USA
Status: offline 		When I rebuilt my LG plates assembly I was about to add the Aluminum bracket - but instead added hardwood tristock - which was missing in my Yak. Earlier i posted some pics from the installation manual - which showed tristock located where the LG bolts go through the wood block - I added the tristock and so far so good. Don't know why they would eliminate the tristock in such a critical area?

(in reply to ultra6a)
       Post #: 33

RE: Yak 100 cc known issues - 8/9/2007 5:34:45 PM   
jasonjanise


 

Posts: 37
Joined: 3/26/2003
From: Norfolk, NE, USA
Status: offline 		Well, original owner or not, they should still help you with any issues you are having. I mean if they had good customer support that is. It amazes me that since this is an Aero-Works Support Forum, no one from there has rang in with an opinion or anything. See, I got the response that it was because I fly off of grass was one of my biggest issues. After reading this more, it seems guys on hard surfaces are having the same issue. So, I would like to know the answer to that since it is happening to everyone. As for the triangle stock, mine did not go all the way back under the landing gear plate itself. They stopped it about 2 inches short, which is right under where the gear bolts on to the fuse. That made no sense to me. It seems that where it needed to be the strongest, they took away from or just thought it was not needed. So, if there is a problem with the design of this one, why can't we request a new version of the fuse and send them this one back. It is none of our faults that this is happening because they (Aero-Works) can not convince me that this is not a design flaw. I mean look what Quique did for his customers when his first run 102" Yaks were found to be bad. I personally know someone that bought one of the bad ones, he called Quique about it and he sent him an entire new plane and told him to just keep the old one for his hassle. Now, that is customer service. He knew there was an issue, didn't run from it and try to blame the customers, and did what he had to do to fix it. That kind of stuff carries a lot of weight when someone is willing to stand 100% behind their product. I mean Aero-Works doesn't or hasn't from what I have seen and heard done anything for anyone about this issue. Well, they have passed the buck. I mean they really can't blame it on the customer for a building mistake, because that is all done since it is a "QB". I mean if we had wing failures instead of landing gear blocks, how could they say it was something you or I did? We have no part in how the wing was built. All we do is but servo's in, linkages and bolt it to the fuse. Just like I had nothing to do with the construction of the gear block or anything related to it. I just think it hurts them more than it does help by not responding to peoples concerns and problems. It is easy to be a good company when all is going well and models are selling, but a true great company steps up when things go bad. That is when you really find out what or who you are dealing with. Here is another idea that Aero-Works can do. If you are going to build landing gear blocks out of 8mm and 5mm hardwood, then make replacement wood of that size for the rest of us here in the U.S. or at least make it available. Then you could make more money off us since we have to fix your mistakes. Is that asking so much. Better yet, use standard size wood so it is a little easier on us all. I know that is asking a lot. The guy you are referring to that has to ask everyone else what is going on is Chuck. I do not even deal with him. I ask for someone who knows what is going on.

Jason

< Message edited by jasonjanise -- 8/9/2007 5:36:25 PM >

(in reply to talon58)
       Post #: 34

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