Luked

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Everything posted by Luked



  1. Luked added a post in a topic Rod End Bearings   

    Thanks Doug. I took a look. Unfortunately the pull sheets just have the Avid part number, but not much description otherwise. Looks like Avid called them F-38 and F-39. It does show that they are 3/16" x 3/16".
     
    I think the point Dusty made about the swivel at the bellcrank may mean that the parts the factory used won't be what I'm looking for anyway. I think the parts I had just happened to provide extra motion. I think I'm on my own.
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  2. Luked added a post in a topic Rod End Bearings   

     
    Good catch Dusty. I know what you are talking about. I am actually designing my own control system, so it's a different situation. I had the stock system though (sold it to another builder), and remember that the bearings they used had a lot of misalignment motion.
     
    IFMT, thanks for the heads up on the jam nut. This will be important with the setup I'm planning because if the jam nuts get loose, it could rotate and wear on the treads like you say.
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  3. Luked added a post in a topic Rod End Bearings   

    Well, I went ahead and ordered a bearing from Spruce to try out. It's the Aurora GMM-3M-470. It's their "General Aviation Precision" bearing. Has 3/16" bore, and 1/4-28 shank. The key is that it has 17 degrees of misalignment motion. If I have one of these on each end of a pushrod, I get a total of 34 degrees in rotation. I plan to set my stops at 30 degrees total rotation. I just got one to check it out. I'll eventuatlly need 4 total. I'll let you know how it works.
     
    Oh, I forgot that I was going to put a link to their catalog:
     
    http://www.aurorabearing.com/pdf/aircraft.pdf
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  4. Luked added a post in a topic Rod End Bearings   

    Hi Ed,
     
    Thanks for your help. I should have explained my question better. You are right that they are 3/16" bore, and shank. I'd like to know the Hiem part number to look up though because those two rod ends (male and female) need to have a certain amount of misalignment angle capability because of the way the control column rotates.
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  5. Luked added a topic in Avidfoxflyers General Hangar   

    Rod End Bearings
    I'm working on my control system, and trying to find the rod end bearings I need. I found this picture in one of Doug's for sale posts. The parts I'm interested in are the ones that are circled and labeled "see SB #6".

    I'm not sure where to get Hiem FRE-48 or FRE-49 bearings or even how to find the specs on them. I'll probably end up using Aurora bearings, but I wanted to know what Avid and Kitfox used just for comparison. I just don't know how to find any info on these. Anyone know another part number for them?
     
    Thanks,
    Luke D.
    • 17 replies
    • 1,620 views


  6. Luked added a post in a topic Raf pics   

    As Larry said, meteor in the foreground. I think there is a 262 right behind it.
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  7. Luked added a post in a topic PAINTING QUESTION   

    Hey Ed,
     
    I'm no paint expert. I do read quite a bit on Vansairforce.net since we make products for their airplanes. As you can imagine, the topic of painting aluminum comes up a lot over there since that's what their planes are made of. They actually have a whole section of the forum just for primer:
     
    http://www.vansairforce.com/community/forumdisplay.php?s=&f=54&page=1&pp=53&sort=lastpost&order=desc&daysprune=-1
     
    There are also a lot of opinions about it, so they refer to this topic as "Primer Wars".
     
    From what I've read about it, I think the concensus is something like this:
     
    Spray can self etching primers are okay for most stuff where you just need to protect against corrosion. It won't hold up well in areas with high wear (cockpit, etc.). It's recommended that you scuff with scotchbrite first. Some recommend heating parts before painting.
     
    Alodine plus some kind of primer is better than just self etching primer. Alodine, and then apply any type of primer you like.
     
    Epoxy primer is best. AKZO seems to be the prefered brand. Of course you have to clean up your spray system after every use.
     
    I'm not sure you need to do much to alclad. It probably depends on your preference, and the area you are operating the plane in. I would definitely prime any "bare" aluminum though.
     
    Here's a link to a guy who compared spray can self etching primers. Pretty interesting reading:
     
    http://www.vansairforce.com/community/showthread.php?t=96070&highlight=primer
     
    Also, for some entertainment, here's a past thread that relates to the topic  :
     
    http://www.vansairforce.com/community/showthread.php?t=98446
     
    Luke D.
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  8. Luked added a post in a topic DAVE JOHNSON EA-81 WITH REDRIVE EBAY   

    I was planning a -12 then I have the option. No progress lately. The lack of work on the plane is embarrassing  . I did organize my garage a little over the weekend. Made a little rack to store my chromoly tubing so I can see what I have on hand. Hope to get back to work on the plane sometime soon. Work is consuming all my time right now though.
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  9. Luked added a post in a topic DAVE JOHNSON EA-81 WITH REDRIVE EBAY   

    Don't have a complete engine yet. Just some parts (yellow tagged flange crank). I plan to get the engine when I'm closer to needing it. I was pretty impressed with what Frank Knapp could do with a C-85. Of course, his engine has had quite a bit of extra help to make it perform like that, and his airplane is stripped down to almost nothing. Still, I think it will be a pretty good fit for the Avid if I can keep the airframe weight down. I think he has a Catto prop. Not sure that's in my budget. I'll probably use a wood one.
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  10. Luked added a post in a topic DAVE JOHNSON EA-81 WITH REDRIVE EBAY   

     
    Yep, that's my plan. The reason is that it should be small enough to hand prop so I can run no electrical if I decide to. This saves starter, alternator (or gen), and starter battery. If I decide I hate hand propping, I have the option to take the weight penalty, and add an electrical system.
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  11. Luked added a post in a topic 4 amp WIND GENERATOR ON EBAY AVIATION PARTS   

    This one?
     
    http://www.ebay.com/itm/Genipod-Homebuilt-Airplane-Ram-Air-Electrical-System-4-Amp-RAT-Turbine-/391191518276?hash=item5b14d4dc44&vxp=mtr
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  12. Luked added a post in a topic DAVE JOHNSON EA-81 WITH REDRIVE EBAY   

    http://www.ebay.com/itm/Subaru-EA81-Experimental-Aircraft-Engine-/231613226542?hash=item35ed395e2e&vxp=mtr
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  13. Luked added a post in a topic Fair price for timed-out 582 & Ivoprop IFA?   

    Ahhh... Didn't think about the fact that you have to buy a gearbox separately.
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  14. Luked added a post in a topic Fair price for timed-out 582 & Ivoprop IFA?   

    Not to thread jack (this may be related), but what is the going cost for a 582 new. I was just thinking about different options, so I did a little looking recently, and came across this:
     
    https://www.cps-parts.com/catalog/rtxpages/582rotaxengine.php
     
    Seems pretty reasonable. I guess there is some more cost to get the rest of the FWF stuff though. What would it cost by the time you had a running engine?
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  15. Luked added a post in a topic Belly Radiators   

    I don't really know anything about belly radiators, but this made me think of a video I saw about a guy that put a V8 in a Zenith. He had some interesting comments about getting his belly rad to work properly. He said that until he got it working right, the air was actually flowing backwards through it. Here is the video. Radiator info starts around 3 minute mark.
     

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  16. Luked added a post in a topic MTOW mod question   

    As Sed mentioned, if you are going to increase the strength of the carrythrough, you may want to consider other areas too. I plan to put KF wings (longer span than Avid) on my MKIV. I've already increased the cross section of my strut carry through. I added half of a square tube on top of the existing 3/4" .035" round tube. I also added 1/16" plates overlapping the ends of this tube going all the way to the bolt holes for the struts.
     
    My thinking is that because this is mainly a tension member, the shape of the additional cross section isn't that important (It's also very well braced laterally for compression anyway). But, making that extra cross section continuous from the strut bolt on one side to the strut bolt on the other is important. Otherwise, you may be adding extra weight for no benefit. Kind of like the chain is only as strong as it's weakest link idea.
     
    I'm also increasing my spar carrythrough tubes to the size used in the KF-4 1200, and increasing strut tube sizes as well. The wing and it's supporting structure will be pretty much the same as a 4-1200. When I get a chance to get out to my garage, I could take a picture of the strut carrythrough mod. I haven't touched the airplane for many months. Good luck with your mods.
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  17. Luked added a post in a topic Watch out for stowaways!   

    I guess I'm a little slow. Just saw it this morning...    Thought it was pretty funny though.
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  18. Luked added a topic in Avidfoxflyers General Hangar   

    Watch out for stowaways!
    https://www.youtube.com/watch?v=OO2dzUDRQ-w
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  19. Luked added a post in a topic Ultralight Day at Pioneer Airport   

    Looks like a fun event Larry. It'd be cool to see some more pictures if anyone has them.
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  20. Luked added a post in a topic Crossed the US in My Avid Flyer Mk IV   

    Yeah, great story. Reading through all the descriptions on the pictures was fun. Thanks!
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  21. Luked added a post in a topic We must fly taildraggers!   

    Someone on one of the Vans forums did a similar Hitler video. This came about because there was an argument about the best RV takeoff procedure I guess. I thought they were a little hard on the guy, but it was funny:
     

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  22. Luked added a post in a topic Chugiak Mts Flight   

    Thanks for the pictures Randy. Gotta get to AK some day!
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  23. Luked added a post in a topic Happy Birthday Highcountry1   

    Happy Birthday Robert. Wish I had completed an airplane at your age. Keep flying a flying a priority as life comes along, and I'm sure you won't regret it.
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  24. Luked added a post in a topic Classic IV Restoration   

    Great progress Larry!
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  25. Luked added a post in a topic 2nd Annual RedHills Memorial Day Fly-In pics   

    Thanks for sharing Joey. Your trip reports always give me extra motivation to get on with the airplane project (unfortunately other things have been getting in the way of it lately). Great pictures!
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